diff --git a/.babelrc b/.babelrc
index 7a6e470e8..5ada617f3 100644
--- a/.babelrc
+++ b/.babelrc
@@ -1,17 +1,4 @@
 {
-  "presets": [
-    [
-      "@babel/preset-env",
-      {
-        "targets": "maintained node versions",
-        "useBuiltIns": "usage",
-        "corejs": 3
-      }
-    ],
-    "@babel/preset-typescript"
-  ],
-  "plugins": [
-    "@babel/proposal-class-properties",
-    "@babel/proposal-object-rest-spread"
-  ]
+  "exclude": ["**/node_modules/**"],
+  "presets": [["./babel-preset", { "ts": true }]]
 }
diff --git a/.eslintignore b/.eslintignore
index 2f93ebb62..63e6ac6ee 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -1,3 +1,5 @@
 !/.eslintrc
 /bin
+/declarations
 /dist
+/lib
diff --git a/.gitignore b/.gitignore
index 95666d2e3..48eda71c8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,5 +20,7 @@
 
 # built files
 /bin
+/declarations
 /dist
-/vis-dev-util-0.0.0-no-version.tgz
+/lib
+/vis-dev-utils-0.0.0-no-version.tgz
diff --git a/babel-preset/index.js b/babel-preset/index.js
new file mode 100644
index 000000000..bc4a13d94
--- /dev/null
+++ b/babel-preset/index.js
@@ -0,0 +1,75 @@
+module.exports = function(_context, { css = false, ts = false } = {}) {
+  const base = {
+    presets: [
+      [
+        require("@babel/preset-env"),
+        {
+          targets: {
+            // A browser is polyfilled if it is supported by it's maintainers
+            // or if it is used by at least one in every thousand of users.
+            browsers: "> 0.1% or not dead",
+            // This forces Babel to polyfill ESM as if it was UMD. The reason
+            // behind this is that that Babel doesn't include IE 11 polyfills
+            // in ESM builds since IE 11 can't even load them. However many of
+            // our users use bundlers to bundle ESM builds into IE 11
+            // compatible UMD builds. Therefore even ESM builds need IE 11
+            // polyfills.
+            esmodules: false
+          },
+          // This would pollute global scope. Babel's Transform Runtime plugin
+          // is used instead.
+          useBuiltIns: false
+        }
+      ]
+    ],
+    plugins: [
+      require("@babel/plugin-proposal-class-properties"),
+      require("@babel/plugin-proposal-object-rest-spread"),
+      [
+        require("@babel/plugin-transform-runtime"),
+        {
+          // Force corejs 3. The default corejs 2 is deprecated and doesn't
+          // contain some polyfills.
+          corejs: 3
+        }
+      ]
+    ],
+    env: {
+      test: {
+        presets: [
+          [
+            require("@babel/preset-env"),
+            {
+              // Tests run in Node so there's no need to include any other
+              // polyfills (we're testing our code, not the polyfills).
+              targets: "maintained node versions"
+            }
+          ]
+        ]
+      },
+      "test-cov": {
+        presets: [
+          [
+            require("@babel/preset-env"),
+            {
+              // dtto
+              targets: "maintained node versions"
+            }
+          ]
+        ],
+        // This instruments the code to record coverage. It's more reliable if
+        // done through Babel plugin.
+        plugins: ["istanbul"]
+      }
+    }
+  };
+
+  if (css) {
+    base.plugins.push(require("babel-plugin-css-modules-transform"));
+  }
+  if (ts) {
+    base.presets.push(require("@babel/preset-typescript"));
+  }
+
+  return base;
+};
diff --git a/lib/header.js b/lib/header.js
deleted file mode 100644
index f99166d89..000000000
--- a/lib/header.js
+++ /dev/null
@@ -1,44 +0,0 @@
-import packageJSON from "../package.json";
-
-const header = `
-${packageJSON.homepage}
-
-${packageJSON.description}
-
-@version ${packageJSON.version}
-@date    ${new Date().toISOString()}
-
-@copyright (c) 2011-2017 Almende B.V, http://almende.com
-@copyright (c) 2018-2019 visjs contributors, https://github.com/visjs
-
-@license 
-vis.js is dual licensed under both
-
-  1. The Apache 2.0 License
-     http://www.apache.org/licenses/LICENSE-2.0
-
-  and
-
-  2. The MIT License
-     http://opensource.org/licenses/MIT
-
-vis.js may be distributed under either license.`;
-
-/**
- * Generate a dynamic header banner.
- *
- * @param {String} component
- * @returns {String} banner
- */
-function genHeader(component) {
-  return (
-    "/**\n" +
-    [packageJSON.name, component ? " - " + component : "", header]
-      .join("")
-      .replace(/^(?!\n)/gm, " * ")
-      .replace(/^(?=\n)/gm, " *") +
-    "\n */"
-  );
-}
-
-export default genHeader;
diff --git a/package-lock.json b/package-lock.json
index 012b1e71b..0d8074e4d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -138,17 +138,135 @@
       }
     },
     "@babel/helper-create-class-features-plugin": {
-      "version": "7.5.5",
-      "resolved": "https://registry.npmjs.org/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.5.5.tgz",
-      "integrity": "sha512-ZsxkyYiRA7Bg+ZTRpPvB6AbOFKTFFK4LrvTet8lInm0V468MWCaSYJE+I7v2z2r8KNLtYiV+K5kTCnR7dvyZjg==",
+      "version": "7.7.4",
+      "resolved": "https://registry.npmjs.org/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.7.4.tgz",
+      "integrity": "sha512-l+OnKACG4uiDHQ/aJT8dwpR+LhCJALxL0mJ6nzjB25e5IPwqV1VOsY7ah6UB1DG+VOXAIMtuC54rFJGiHkxjgA==",
       "dev": true,
       "requires": {
-        "@babel/helper-function-name": "^7.1.0",
-        "@babel/helper-member-expression-to-functions": "^7.5.5",
-        "@babel/helper-optimise-call-expression": "^7.0.0",
+        "@babel/helper-function-name": "^7.7.4",
+        "@babel/helper-member-expression-to-functions": "^7.7.4",
+        "@babel/helper-optimise-call-expression": "^7.7.4",
         "@babel/helper-plugin-utils": "^7.0.0",
-        "@babel/helper-replace-supers": "^7.5.5",
-        "@babel/helper-split-export-declaration": "^7.4.4"
+        "@babel/helper-replace-supers": "^7.7.4",
+        "@babel/helper-split-export-declaration": "^7.7.4"
+      },
+      "dependencies": {
+        "@babel/generator": {
+          "version": "7.7.7",
+          "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.7.7.tgz",
+          "integrity": "sha512-/AOIBpHh/JU1l0ZFS4kiRCBnLi6OTHzh0RPk3h9isBxkkqELtQNFi1Vr/tiG9p1yfoUdKVwISuXWQR+hwwM4VQ==",
+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.7.4",
+            "jsesc": "^2.5.1",
+            "lodash": "^4.17.13",
+            "source-map": "^0.5.0"
+          }
+        },
+        "@babel/helper-function-name": {
+          "version": "7.7.4",
+          "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.7.4.tgz",
+          "integrity": "sha512-AnkGIdiBhEuiwdoMnKm7jfPfqItZhgRaZfMg1XX3bS25INOnLPjPG1Ppnajh8eqgt5kPJnfqrRHqFqmjKDZLzQ==",
+          "dev": true,
+          "requires": {
+            "@babel/helper-get-function-arity": "^7.7.4",
+            "@babel/template": "^7.7.4",
+            "@babel/types": "^7.7.4"
+          }
+        },
+        "@babel/helper-get-function-arity": {
+          "version": "7.7.4",
+          "resolved": "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.7.4.tgz",
+          "integrity": "sha512-QTGKEdCkjgzgfJ3bAyRwF4yyT3pg+vDgan8DSivq1eS0gwi+KGKE5x8kRcbeFTb/673mkO5SN1IZfmCfA5o+EA==",
+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.7.4"
+          }
+        },
+        "@babel/helper-member-expression-to-functions": {
+          "version": "7.7.4",
+          "resolved": "https://registry.npmjs.org/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.7.4.tgz",
+          "integrity": "sha512-9KcA1X2E3OjXl/ykfMMInBK+uVdfIVakVe7W7Lg3wfXUNyS3Q1HWLFRwZIjhqiCGbslummPDnmb7vIekS0C1vw==",
+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.7.4"
+          }
+        },
+        "@babel/helper-optimise-call-expression": {
+          "version": "7.7.4",
+          "resolved": "https://registry.npmjs.org/@babel/helper-optimise-call-expression/-/helper-optimise-call-expression-7.7.4.tgz",
+          "integrity": "sha512-VB7gWZ2fDkSuqW6b1AKXkJWO5NyNI3bFL/kK79/30moK57blr6NbH8xcl2XcKCwOmJosftWunZqfO84IGq3ZZg==",
+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.7.4"
+          }
+        },
+        "@babel/helper-replace-supers": {
+          "version": "7.7.4",
+          "resolved": "https://registry.npmjs.org/@babel/helper-replace-supers/-/helper-replace-supers-7.7.4.tgz",
+          "integrity": "sha512-pP0tfgg9hsZWo5ZboYGuBn/bbYT/hdLPVSS4NMmiRJdwWhP0IznPwN9AE1JwyGsjSPLC364I0Qh5p+EPkGPNpg==",
+          "dev": true,
+          "requires": {
+            "@babel/helper-member-expression-to-functions": "^7.7.4",
+            "@babel/helper-optimise-call-expression": "^7.7.4",
+            "@babel/traverse": "^7.7.4",
+            "@babel/types": "^7.7.4"
+          }
+        },
+        "@babel/helper-split-export-declaration": {
+          "version": "7.7.4",
+          "resolved": "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.7.4.tgz",
+          "integrity": "sha512-guAg1SXFcVr04Guk9eq0S4/rWS++sbmyqosJzVs8+1fH5NI+ZcmkaSkc7dmtAFbHFva6yRJnjW3yAcGxjueDug==",
+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.7.4"
+          }
+        },
+        "@babel/parser": {
+          "version": "7.7.7",
+          "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.7.7.tgz",
+          "integrity": "sha512-WtTZMZAZLbeymhkd/sEaPD8IQyGAhmuTuvTzLiCFM7iXiVdY0gc0IaI+cW0fh1BnSMbJSzXX6/fHllgHKwHhXw==",
+          "dev": true
+        },
+        "@babel/template": {
+          "version": "7.7.4",
+          "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.7.4.tgz",
+          "integrity": "sha512-qUzihgVPguAzXCK7WXw8pqs6cEwi54s3E+HrejlkuWO6ivMKx9hZl3Y2fSXp9i5HgyWmj7RKP+ulaYnKM4yYxw==",
+          "dev": true,
+          "requires": {
+            "@babel/code-frame": "^7.0.0",
+            "@babel/parser": "^7.7.4",
+            "@babel/types": "^7.7.4"
+          }
+        },
+        "@babel/traverse": {
+          "version": "7.7.4",
+          "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.7.4.tgz",
+          "integrity": "sha512-P1L58hQyupn8+ezVA2z5KBm4/Zr4lCC8dwKCMYzsa5jFMDMQAzaBNy9W5VjB+KAmBjb40U7a/H6ao+Xo+9saIw==",
+          "dev": true,
+          "requires": {
+            "@babel/code-frame": "^7.5.5",
+            "@babel/generator": "^7.7.4",
+            "@babel/helper-function-name": "^7.7.4",
+            "@babel/helper-split-export-declaration": "^7.7.4",
+            "@babel/parser": "^7.7.4",
+            "@babel/types": "^7.7.4",
+            "debug": "^4.1.0",
+            "globals": "^11.1.0",
+            "lodash": "^4.17.13"
+          }
+        },
+        "@babel/types": {
+          "version": "7.7.4",
+          "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.7.4.tgz",
+          "integrity": "sha512-cz5Ji23KCi4T+YIE/BolWosrJuSmoZeN1EFnRtBwF+KKLi8GG/Z2c2hOJJeCXPk4mwk4QFvTmwIodJowXgttRA==",
+          "dev": true,
+          "requires": {
+            "esutils": "^2.0.2",
+            "lodash": "^4.17.13",
+            "to-fast-properties": "^2.0.0"
+          }
+        }
       }
     },
     "@babel/helper-define-map": {
@@ -412,12 +530,12 @@
       }
     },
     "@babel/plugin-proposal-class-properties": {
-      "version": "7.5.5",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-class-properties/-/plugin-proposal-class-properties-7.5.5.tgz",
-      "integrity": "sha512-AF79FsnWFxjlaosgdi421vmYG6/jg79bVD0dpD44QdgobzHKuLZ6S3vl8la9qIeSwGi8i1fS0O1mfuDAAdo1/A==",
+      "version": "7.7.4",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-class-properties/-/plugin-proposal-class-properties-7.7.4.tgz",
+      "integrity": "sha512-EcuXeV4Hv1X3+Q1TsuOmyyxeTRiSqurGJ26+I/FW1WbymmRRapVORm6x1Zl3iDIHyRxEs+VXWp6qnlcfcJSbbw==",
       "dev": true,
       "requires": {
-        "@babel/helper-create-class-features-plugin": "^7.5.5",
+        "@babel/helper-create-class-features-plugin": "^7.7.4",
         "@babel/helper-plugin-utils": "^7.0.0"
       }
     },
@@ -776,6 +894,40 @@
         "@babel/helper-plugin-utils": "^7.0.0"
       }
     },
+    "@babel/plugin-transform-runtime": {
+      "version": "7.7.6",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-runtime/-/plugin-transform-runtime-7.7.6.tgz",
+      "integrity": "sha512-tajQY+YmXR7JjTwRvwL4HePqoL3DYxpYXIHKVvrOIvJmeHe2y1w4tz5qz9ObUDC9m76rCzIMPyn4eERuwA4a4A==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-module-imports": "^7.7.4",
+        "@babel/helper-plugin-utils": "^7.0.0",
+        "resolve": "^1.8.1",
+        "semver": "^5.5.1"
+      },
+      "dependencies": {
+        "@babel/helper-module-imports": {
+          "version": "7.7.4",
+          "resolved": "https://registry.npmjs.org/@babel/helper-module-imports/-/helper-module-imports-7.7.4.tgz",
+          "integrity": "sha512-dGcrX6K9l8258WFjyDLJwuVKxR4XZfU0/vTUgOQYWEnRD8mgr+p4d6fCUMq/ys0h4CCt/S5JhbvtyErjWouAUQ==",
+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.7.4"
+          }
+        },
+        "@babel/types": {
+          "version": "7.7.4",
+          "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.7.4.tgz",
+          "integrity": "sha512-cz5Ji23KCi4T+YIE/BolWosrJuSmoZeN1EFnRtBwF+KKLi8GG/Z2c2hOJJeCXPk4mwk4QFvTmwIodJowXgttRA==",
+          "dev": true,
+          "requires": {
+            "esutils": "^2.0.2",
+            "lodash": "^4.17.13",
+            "to-fast-properties": "^2.0.0"
+          }
+        }
+      }
+    },
     "@babel/plugin-transform-shorthand-properties": {
       "version": "7.2.0",
       "resolved": "https://registry.npmjs.org/@babel/plugin-transform-shorthand-properties/-/plugin-transform-shorthand-properties-7.2.0.tgz",
@@ -955,6 +1107,16 @@
         "source-map-support": "^0.5.9"
       }
     },
+    "@babel/runtime-corejs3": {
+      "version": "7.7.7",
+      "resolved": "https://registry.npmjs.org/@babel/runtime-corejs3/-/runtime-corejs3-7.7.7.tgz",
+      "integrity": "sha512-kr3W3Fw8mB/CTru2M5zIRQZZgC/9zOxNSoJ/tVCzjPt3H1/p5uuGbz6WwmaQy/TLQcW31rUhUUWKY28sXFRelA==",
+      "dev": true,
+      "requires": {
+        "core-js-pure": "^3.0.0",
+        "regenerator-runtime": "^0.13.2"
+      }
+    },
     "@babel/template": {
       "version": "7.4.4",
       "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.4.4.tgz",
@@ -994,6 +1156,32 @@
         "to-fast-properties": "^2.0.0"
       }
     },
+    "@istanbuljs/load-nyc-config": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@istanbuljs/load-nyc-config/-/load-nyc-config-1.0.0.tgz",
+      "integrity": "sha512-ZR0rq/f/E4f4XcgnDvtMWXCUJpi8eO0rssVhmztsZqLIEFA9UUP9zmpE0VxlM+kv/E1ul2I876Fwil2ayptDVg==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^5.3.1",
+        "find-up": "^4.1.0",
+        "js-yaml": "^3.13.1",
+        "resolve-from": "^5.0.0"
+      },
+      "dependencies": {
+        "resolve-from": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-5.0.0.tgz",
+          "integrity": "sha512-qYg9KP24dD5qka9J47d0aVky0N+b4fTU89LN9iDnjB5waksiC49rvMB0PrUJQGoTmH50XPiqOvAjDfaijGxYZw==",
+          "dev": true
+        }
+      }
+    },
+    "@istanbuljs/schema": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/@istanbuljs/schema/-/schema-0.1.2.tgz",
+      "integrity": "sha512-tsAQNx32a8CoFhjhijUIhI4kccIAgmGhy8LZMZgGfmXcpMbPRUqn5LWmgRttILi6yeGmBJd2xsPkFMs0PzgPCw==",
+      "dev": true
+    },
     "@jimp/bmp": {
       "version": "0.8.5",
       "resolved": "https://registry.npmjs.org/@jimp/bmp/-/bmp-0.8.5.tgz",
@@ -1609,6 +1797,15 @@
       "integrity": "sha512-f5j5b/Gf71L+dbqxIpQ4Z2WlmI/mPJ0fOkGGmFgtb6sAu97EPczzbS3/tJKxmcYDj55OX6ssqwDAWOHIYDRDGA==",
       "dev": true
     },
+    "@types/npm": {
+      "version": "2.0.31",
+      "resolved": "https://registry.npmjs.org/@types/npm/-/npm-2.0.31.tgz",
+      "integrity": "sha512-v4JpUx83wVGItleYsnYeZrM8NTLSnYDfTE/iGm4owy6zZPNFNmnsvvrxiYtG3cVHt/XutzTjUBQ9Bh8bnvEkCw==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/prettier": {
       "version": "1.18.3",
       "resolved": "https://registry.npmjs.org/@types/prettier/-/prettier-1.18.3.tgz",
@@ -1827,6 +2024,16 @@
       "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
       "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg=="
     },
+    "babel-plugin-css-modules-transform": {
+      "version": "1.6.2",
+      "resolved": "https://registry.npmjs.org/babel-plugin-css-modules-transform/-/babel-plugin-css-modules-transform-1.6.2.tgz",
+      "integrity": "sha512-zBsI54N5n979vfYpqFzQ6oRwEiVcmLH5REyaincNW+Ecl52nvRsQPYIbDcJzHePrXI20YSRUw6G/qbPwZZDgfg==",
+      "dev": true,
+      "requires": {
+        "css-modules-require-hook": "^4.0.6",
+        "mkdirp": "^0.5.1"
+      }
+    },
     "babel-plugin-dynamic-import-node": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-dynamic-import-node/-/babel-plugin-dynamic-import-node-2.3.0.tgz",
@@ -1836,6 +2043,19 @@
         "object.assign": "^4.1.0"
       }
     },
+    "babel-plugin-istanbul": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-istanbul/-/babel-plugin-istanbul-6.0.0.tgz",
+      "integrity": "sha512-AF55rZXpe7trmEylbaE1Gv54wn6rwU03aptvRoVIGP8YykoSxqdVLV1TfwflBCE/QtHmqtP8SWlTENqbK8GCSQ==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-plugin-utils": "^7.0.0",
+        "@istanbuljs/load-nyc-config": "^1.0.0",
+        "@istanbuljs/schema": "^0.1.2",
+        "istanbul-lib-instrument": "^4.0.0",
+        "test-exclude": "^6.0.0"
+      }
+    },
     "babel-polyfill": {
       "version": "6.23.0",
       "resolved": "https://registry.npmjs.org/babel-polyfill/-/babel-polyfill-6.23.0.tgz",
@@ -1895,6 +2115,12 @@
       "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.3.1.tgz",
       "integrity": "sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g=="
     },
+    "big.js": {
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+            "locate-path": "^3.0.0"
+          }
+        },
         "glob": {
           "version": "7.1.3",
           "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.3.tgz",
@@ -4419,12 +4975,37 @@
             "path-is-absolute": "^1.0.0"
           }
         },
+        "locate-path": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
+          "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+          "dev": true,
+          "requires": {
+            "p-locate": "^3.0.0",
+            "path-exists": "^3.0.0"
+          }
+        },
         "ms": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
           "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
           "dev": true
         },
+        "p-locate": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
+          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+          "dev": true,
+          "requires": {
+            "p-limit": "^2.0.0"
+          }
+        },
+        "path-exists": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
+          "dev": true
+        },
         "string-width": {
           "version": "3.1.0",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
@@ -4822,11 +5403,11 @@
       }
     },
     "p-locate": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
-      "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-4.1.0.tgz",
+      "integrity": "sha512-R79ZZ/0wAxKGu3oYMlz8jy/kbhsNrS7SKZ7PxEHBgJ5+F2mtFW2fK2cOtBh1cHYkQsbzFV7I+EoRKe6Yt0oK7A==",
       "requires": {
-        "p-limit": "^2.0.0"
+        "p-limit": "^2.2.0"
       }
     },
     "p-map": {
@@ -4961,9 +5542,9 @@
       }
     },
     "path-exists": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
-      "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU="
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
+      "integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w=="
     },
     "path-is-absolute": {
       "version": "1.0.1",
@@ -5062,6 +5643,42 @@
       "dev": true,
       "requires": {
         "find-up": "^3.0.0"
+      },
+      "dependencies": {
+        "find-up": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+          "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+          "dev": true,
+          "requires": {
+            "locate-path": "^3.0.0"
+          }
+        },
+        "locate-path": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
+          "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+          "dev": true,
+          "requires": {
+            "p-locate": "^3.0.0",
+            "path-exists": "^3.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
+          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+          "dev": true,
+          "requires": {
+            "p-limit": "^2.0.0"
+          }
+        },
+        "path-exists": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
+          "dev": true
+        }
       }
     },
     "please-upgrade-node": {
@@ -5086,6 +5703,75 @@
       "resolved": "https://registry.npmjs.org/pngjs/-/pngjs-3.4.0.tgz",
       "integrity": "sha512-NCrCHhWmnQklfH4MtJMRjZ2a8c80qXeMlQMv2uVp9ISJMTt562SbGd6n2oq0PaPgKm7Z6pL9E2UlLIhC+SHL3w=="
     },
+    "postcss": {
+      "version": "6.0.23",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-6.0.23.tgz",
+      "integrity": "sha512-soOk1h6J3VMTZtVeVpv15/Hpdl2cBLX3CAw4TAbkpTJiNPk9YP/zWcD1ND+xEtvyuuvKzbxliTOIyvkSeSJ6ag==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.4.1",
+        "source-map": "^0.6.1",
+        "supports-color": "^5.4.0"
+      },
+      "dependencies": {
+        "source-map": {
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+          "dev": true
+        }
+      }
+    },
+    "postcss-modules-extract-imports": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/postcss-modules-extract-imports/-/postcss-modules-extract-imports-1.2.1.tgz",
+      "integrity": "sha512-6jt9XZwUhwmRUhb/CkyJY020PYaPJsCyt3UjbaWo6XEbH/94Hmv6MP7fG2C5NDU/BcHzyGYxNtHvM+LTf9HrYw==",
+      "dev": true,
+      "requires": {
+        "postcss": "^6.0.1"
+      }
+    },
+    "postcss-modules-local-by-default": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/postcss-modules-local-by-default/-/postcss-modules-local-by-default-1.2.0.tgz",
+      "integrity": "sha1-99gMOYxaOT+nlkRmvRlQCn1hwGk=",
+      "dev": true,
+      "requires": {
+        "css-selector-tokenizer": "^0.7.0",
+        "postcss": "^6.0.1"
+      }
+    },
+    "postcss-modules-resolve-imports": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/postcss-modules-resolve-imports/-/postcss-modules-resolve-imports-1.3.0.tgz",
+      "integrity": "sha1-OY0wALla6WlCDN9M2D+oBn8cXq4=",
+      "dev": true,
+      "requires": {
+        "css-selector-tokenizer": "^0.7.0",
+        "icss-utils": "^3.0.1",
+        "minimist": "^1.2.0"
+      }
+    },
+    "postcss-modules-scope": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/postcss-modules-scope/-/postcss-modules-scope-1.1.0.tgz",
+      "integrity": "sha1-1upkmUx5+XtipytCb75gVqGUu5A=",
+      "dev": true,
+      "requires": {
+        "css-selector-tokenizer": "^0.7.0",
+        "postcss": "^6.0.1"
+      }
+    },
+    "postcss-modules-values": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/postcss-modules-values/-/postcss-modules-values-1.3.0.tgz",
+      "integrity": "sha1-7P+p1+GSUYOJ9CrQ6D9yrsRW6iA=",
+      "dev": true,
+      "requires": {
+        "icss-replace-symbols": "^1.1.0",
+        "postcss": "^6.0.1"
+      }
+    },
     "prelude-ls": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.1.2.tgz",
@@ -5100,7 +5786,8 @@
     "prettier": {
       "version": "1.18.2",
       "resolved": "https://registry.npmjs.org/prettier/-/prettier-1.18.2.tgz",
-      "integrity": "sha512-OeHeMc0JhFE9idD4ZdtNibzY0+TPHSpSSb9h8FqtP+YnoZZ1sl8Vc9b1sasjfymH3SonAF4QcA2+mzHPhMvIiw=="
+      "integrity": "sha512-OeHeMc0JhFE9idD4ZdtNibzY0+TPHSpSSb9h8FqtP+YnoZZ1sl8Vc9b1sasjfymH3SonAF4QcA2+mzHPhMvIiw==",
+      "dev": true
     },
     "prettier-linter-helpers": {
       "version": "1.0.0",
@@ -5554,6 +6241,12 @@
       "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
       "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw=="
     },
+    "seekout": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/seekout/-/seekout-1.0.2.tgz",
+      "integrity": "sha1-CbqfG9W0b7sTRxjrGaaDgsuxuck=",
+      "dev": true
+    },
     "semver": {
       "version": "5.7.0",
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.0.tgz",
@@ -5846,6 +6539,17 @@
         }
       }
     },
+    "test-exclude": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/test-exclude/-/test-exclude-6.0.0.tgz",
+      "integrity": "sha512-cAGWPIyOHU6zlmg88jwm7VRyXnMN7iV68OGAbYDk/Mh/xC/pzVPlQtY6ngoIH/5/tciuhGfvESU8GrHrcxD56w==",
+      "dev": true,
+      "requires": {
+        "@istanbuljs/schema": "^0.1.2",
+        "glob": "^7.1.4",
+        "minimatch": "^3.0.4"
+      }
+    },
     "text-table": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
@@ -6502,6 +7206,36 @@
             "wrap-ansi": "^5.1.0"
           }
         },
+        "find-up": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+          "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+          "requires": {
+            "locate-path": "^3.0.0"
+          }
+        },
+        "locate-path": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
+          "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+          "requires": {
+            "p-locate": "^3.0.0",
+            "path-exists": "^3.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
+          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+          "requires": {
+            "p-limit": "^2.0.0"
+          }
+        },
+        "path-exists": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU="
+        },
         "string-width": {
           "version": "3.1.0",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
@@ -6554,6 +7288,31 @@
         "yargs": "^13.3.0"
       },
       "dependencies": {
+        "locate-path": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
+          "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+          "dev": true,
+          "requires": {
+            "p-locate": "^3.0.0",
+            "path-exists": "^3.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
+          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+          "dev": true,
+          "requires": {
+            "p-limit": "^2.0.0"
+          }
+        },
+        "path-exists": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
+          "dev": true
+        },
         "string-width": {
           "version": "3.1.0",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
@@ -6581,6 +7340,17 @@
             "which-module": "^2.0.0",
             "y18n": "^4.0.0",
             "yargs-parser": "^13.1.1"
+          },
+          "dependencies": {
+            "find-up": {
+              "version": "3.0.0",
+              "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+              "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+              "dev": true,
+              "requires": {
+                "locate-path": "^3.0.0"
+              }
+            }
           }
         }
       }
diff --git a/package.json b/package.json
index 0addd6bca..1a7747fe5 100644
--- a/package.json
+++ b/package.json
@@ -17,8 +17,11 @@
     "vis"
   ],
   "scripts": {
-    "build": "rollup --config ./rollup.config.js",
-    "clean": "rimraf \"./{.nyc_output,.rpt2_cache,bin,coverage,gen}/*\"",
+    "build": "npm run build:internal && npm run build:production && npm run build:declarations",
+    "build:declarations": "npx tsc --project tsconfig.declarations.json",
+    "build:internal": "tsc --project tsconfig.internal.json",
+    "build:production": "rollup --config ./rollup.config.js",
+    "clean": "rimraf \"./{.nyc_output,.rpt2_cache,bin,coverage,gen,lib,bin,dist,declarations}\"",
     "lint": "eslint --ext .js,.ts . && prettier --check \"**/*.{css,html,js,json,ts}\"",
     "lint-fix": "eslint --fix --ext .js,.ts . && prettier --write \"**/*.{css,html,js,json,ts}\"",
     "postinstall": "opencollective postinstall || exit 0",
@@ -32,37 +35,59 @@
       "pre-push": "npm test"
     }
   },
+  "main": "dist/vis-dev-utils.cjs.js",
+  "module": "dist/vis-dev-utils.esm.js",
+  "types": "declarations",
   "bin": {
     "generate-examples-index": "./bin/generate-examples-index.js"
   },
   "files": [
     "LICENSE*",
     "README.md",
-    "bin"
+    "babel-preset",
+    "bin",
+    "declarations",
+    "dist",
+    "lib"
   ],
   "dependencies": {
     "cheerio": "^1.0.0-rc.3",
+    "find-up": "^4.1.0",
     "globby": "^10.0.1",
     "jimp": "^0.8.5",
     "pageres": "^5.2.0",
-    "prettier": "^1.18.2",
     "yargs": "^14.0.0"
   },
+  "peerDependencies": {
+    "@babel/plugin-proposal-class-properties": "^7.0.0",
+    "@babel/plugin-transform-runtime": "^7.0.0",
+    "@babel/preset-env": "^7.0.0",
+    "@babel/preset-typescript": "^7.0.0",
+    "@babel/runtime-corejs3": "^7.0.0",
+    "babel-plugin-css-modules-transform": "^1.6.0",
+    "babel-plugin-istanbul": "^6.0.0",
+    "prettier": "^1.18.0"
+  },
   "devDependencies": {
     "@babel/core": "^7.6.2",
-    "@babel/plugin-proposal-class-properties": "^7.5.5",
+    "@babel/plugin-proposal-class-properties": "^7.7.4",
+    "@babel/plugin-transform-runtime": "7.7.6",
     "@babel/preset-env": "^7.6.2",
     "@babel/preset-typescript": "^7.6.0",
     "@babel/register": "^7.6.2",
+    "@babel/runtime-corejs3": "7.7.7",
     "@types/chai": "^4.2.3",
     "@types/cheerio": "^0.22.13",
     "@types/jimp": "^0.2.28",
     "@types/mocha": "^5.2.7",
+    "@types/npm": "^2.0.31",
     "@types/prettier": "^1.18.3",
     "@types/sinon": "^7.5.0",
     "@types/yargs": "^13.0.3",
     "@typescript-eslint/eslint-plugin": "^2.3.2",
     "@typescript-eslint/parser": "^2.3.2",
+    "babel-plugin-css-modules-transform": "1.6.2",
+    "babel-plugin-istanbul": "6.0.0",
     "builtin-modules": "^3.1.0",
     "chai": "^4.2.0",
     "core-js": "^3.2.1",
diff --git a/rollup.config.js b/rollup.config.js
index cefee1803..609a71a36 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -1,45 +1,78 @@
 import babel from "rollup-plugin-babel";
 import builtins from "builtin-modules";
 import commonjs from "rollup-plugin-commonjs";
-import genHeader from "./lib/header";
+import { generateHeader } from "./lib/header";
 import nodeResolve from "rollup-plugin-node-resolve";
 import packageJSON from "./package.json";
 import typescript from "rollup-plugin-typescript2";
 import { string } from "rollup-plugin-string";
 
+const bannerModule = generateHeader();
 // Shebang is necessary to execute this as a command.
-const banner = "#!/usr/bin/env node\n\n" + genHeader("network");
+const bannerCommand = "#!/usr/bin/env node\n\n" + bannerModule;
 
 // Dependencies will be installed by npm.
 // Builtins are always available in Node.
-const external = [...Object.keys(packageJSON.dependencies), ...builtins];
+const external = [
+  ...new Set([
+    ...Object.keys(packageJSON.dependencies),
+    ...Object.keys(packageJSON.peerDependencies),
+    ...builtins
+  ])
+];
 
-export default ["generate-examples-index"].map(name => {
-  return {
-    input: `./src/${name}`,
-    output: {
-      banner,
-      file: `./bin/${name}.js`,
-      format: "cjs",
-      sourcemap: true
-    },
+const getPlugins = () => [
+  nodeResolve({
+    extensions: [".css", ".html", ".js", ".json", ".ts", ".txt"],
+    preferBuiltins: true
+  }),
+  string({
+    include: ["**/*.{css,html,txt}"]
+  }),
+  typescript({
+    objectHashIgnoreUnknownHack: true,
+    tsconfig: "tsconfig.json"
+  }),
+  commonjs(),
+  babel({
+    extensions: [".js", ".ts"],
+    runtimeHelpers: true
+  })
+];
+
+export default [
+  // JavaScript module exports.
+  {
+    input: `src/module`,
+    output: [
+      {
+        banner: bannerModule,
+        file: `dist/vis-dev-utils.cjs.js`,
+        format: "cjs",
+        sourcemap: true
+      },
+      {
+        banner: bannerModule,
+        file: `dist/vis-dev-utils.esm.js`,
+        format: "esm",
+        sourcemap: true
+      }
+    ],
     external,
-    plugins: [
-      nodeResolve({
-        extensions: [".css", ".html", ".js", ".json", ".ts", ".txt"],
-        preferBuiltins: true
-      }),
-      string({
-        include: ["**/*.{css,html,txt}"]
-      }),
-      typescript({
-        objectHashIgnoreUnknownHack: true,
-        tsconfig: "tsconfig.json"
-      }),
-      commonjs(),
-      babel({
-        extensions: [".js", ".ts"]
-      })
-    ]
-  };
-});
+    plugins: getPlugins()
+  },
+  // Node commands.
+  ...["generate-examples-index"].map(name => {
+    return {
+      input: `src/${name}`,
+      output: {
+        banner: bannerCommand,
+        file: `bin/${name}.js`,
+        format: "cjs",
+        sourcemap: true
+      },
+      external,
+      plugins: getPlugins()
+    };
+  })
+];
diff --git a/src/module/header.ts b/src/module/header.ts
new file mode 100644
index 000000000..743c24f40
--- /dev/null
+++ b/src/module/header.ts
@@ -0,0 +1,132 @@
+import { sync as findUp } from "find-up";
+import { readFileSync } from "fs";
+
+/**
+ * Take a string and return a doc block comment.
+ *
+ * @param string - The raw text to be included in the comment.
+ *
+ * @throws If the string already contains a comment.
+ *
+ * @returns A block doc comment string that can be for example prepended to a
+ * bundled JavaScript file.
+ */
+export function textToComment(string: string): string {
+  if (string.includes("*/")) {
+    throw new Error(
+      "Don't include comments in the input string. It will be converted automatically."
+    );
+  }
+
+  return (
+    "/**\n" +
+    string
+      // Remove empty lines from the start.
+      .replace(/^[\n\r]*/, "")
+      // Remove empty lines from the end.
+      .replace(/[\n\r\s]*$/, "")
+      // Process each line on it's own from now on.
+      .split("\n")
+      // Prefix each line with an asterisk.
+      .map(line => " * " + line)
+      // Remove trailing white space.
+      .map(line => line.replace(/[^\S\r\n]*$/, ""))
+      // Join back into a string.
+      .join("\n") +
+    "\n */\n"
+  );
+}
+
+const packageJSON = JSON.parse(readFileSync(findUp("package.json")!, "utf8"));
+
+const buildHeader = ({
+  customText,
+  date,
+  description,
+  homepage,
+  name,
+  version
+}: HeaderOptions): string =>
+  textToComment(`
+${name}
+${homepage}
+
+${description}
+
+@version ${version}
+@date    ${date}
+
+@copyright (c) 2011-2017 Almende B.V, http://almende.com
+@copyright (c) 2017-2019 visjs contributors, https://github.com/visjs
+
+@license
+vis.js is dual licensed under both
+
+  1. The Apache 2.0 License
+     http://www.apache.org/licenses/LICENSE-2.0
+
+  and
+
+  2. The MIT License
+     http://opensource.org/licenses/MIT
+
+vis.js may be distributed under either license.
+
+${customText}
+`);
+
+/**
+ * Options for {@link generateHeader}.
+ */
+export interface HeaderOptions {
+  /** Any text to be appended to the standard header. */
+  customText: string;
+  /** The build date. */
+  date: string;
+  /** A description of the project. */
+  description: string;
+  /** An URL to the homepage of the project. */
+  homepage: string;
+  /** The name of the project. */
+  name: string;
+  /** The version of the build. */
+  version: string;
+}
+
+const defaultDate = new Date().toISOString();
+const defaultDescription = packageJSON.description;
+const defaultHomepage = packageJSON.homepage;
+const defaultName = packageJSON.name;
+const defaultVersion = packageJSON.version;
+
+/**
+ * Generate a dynamic header banner.
+ *
+ * @param options - Optional information to be included. Otherwise no custom
+ * text will be appended, the date will be the time when this module was
+ * imported (most likely the start of the build process) and the rest will be
+ * read from package.json.
+ *
+ * @throws If the string already contains a comment.
+ *
+ * @returns Ready to use banner text.
+ */
+export function generateHeader(options?: Partial<HeaderOptions>): string {
+  const {
+    customText = "",
+    date = defaultDate,
+    description = defaultDescription,
+    homepage = defaultHomepage,
+    name = defaultName,
+    version = defaultVersion
+  } = options || {};
+
+  return buildHeader({
+    customText,
+    date,
+    description,
+    homepage,
+    name,
+    version
+  });
+}
diff --git a/src/module/index.ts b/src/module/index.ts
new file mode 100644
index 000000000..49ac70fe2
--- /dev/null
+++ b/src/module/index.ts
@@ -0,0 +1 @@
+export * from "./header";
diff --git a/tsconfig.declarations.json b/tsconfig.declarations.json
new file mode 100644
index 000000000..763699ecc
--- /dev/null
+++ b/tsconfig.declarations.json
@@ -0,0 +1,21 @@
+{
+  "compilerOptions": {
+    "baseUrl": "src/module",
+    "declaration": true,
+    "declarationDir": "declarations",
+    "declarationMap": true,
+    "emitDeclarationOnly": true,
+    "esModuleInterop": true,
+    "module": "es2015",
+    "moduleResolution": "node",
+    "outDir": "js/src",
+    "paths": {},
+    "resolveJsonModule": true,
+    "sourceMap": true,
+    "strict": true,
+    "target": "es2015",
+    "typeRoots": ["@types", "node_modules/@types/"]
+  },
+  "exclude": ["node_modules", "**/__tests__/*"],
+  "include": ["src/module"]
+}
diff --git a/tsconfig.internal.json b/tsconfig.internal.json
new file mode 100644
index 000000000..13d70d7da
--- /dev/null
+++ b/tsconfig.internal.json
@@ -0,0 +1,20 @@
+{
+  "compilerOptions": {
+    "baseUrl": ".",
+    "declaration": true,
+    "declarationDir": "lib",
+    "declarationMap": true,
+    "esModuleInterop": true,
+    "module": "es2015",
+    "moduleResolution": "node",
+    "outDir": "lib",
+    "paths": {},
+    "resolveJsonModule": true,
+    "sourceMap": true,
+    "strict": true,
+    "target": "es2015",
+    "typeRoots": ["@types", "node_modules/@types/"]
+  },
+  "exclude": ["node_modules", "**/__tests__/*"],
+  "include": ["src/module/header.ts"]
+}
diff --git a/tsconfig.json b/tsconfig.json
index 6fd604da6..0fc90d7e2 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,13 +1,11 @@
 {
   "compilerOptions": {
     "baseUrl": ".",
-    "declaration": true,
-    "declarationDir": "dist/types",
-    "declarationMap": true,
+    "declaration": false,
     "esModuleInterop": true,
     "module": "es2015",
     "moduleResolution": "node",
-    "outDir": "dist/src",
+    "outDir": "js/src",
     "paths": {},
     "resolveJsonModule": true,
     "sourceMap": true,