diff --git a/src/components/Form.js b/src/components/Form.js
index 98fed2f7ee..fd15052332 100644
--- a/src/components/Form.js
+++ b/src/components/Form.js
@@ -79,11 +79,12 @@ export default class Form extends Component {
     return {
       SchemaField: this.props.SchemaField || SchemaField,
       TitleField: this.props.TitleField || TitleField,
+      widgets: this.props.widgets || {},
     };
   }
 
   render() {
-    const {children, schema, uiSchema} = this.props;
+    const {children, schema, uiSchema, widgets} = this.props;
     const {formData} = this.state;
     const registry = this.getRegistry();
     const _SchemaField = registry.SchemaField;
@@ -94,6 +95,7 @@ export default class Form extends Component {
           schema={schema}
           uiSchema={uiSchema}
           formData={formData}
+          widgets={widgets}
           onChange={this.onChange.bind(this)}
           registry={registry}/>
         { children ? children : <p><button type="submit">Submit</button></p> }
@@ -107,6 +109,7 @@ if (process.env.NODE_ENV !== "production") {
     schema: PropTypes.object.isRequired,
     uiSchema: PropTypes.object,
     formData: PropTypes.any,
+    widgets: PropTypes.object,
     onChange: PropTypes.func,
     onError: PropTypes.func,
     onSubmit: PropTypes.func,
diff --git a/src/components/fields/ArrayField.js b/src/components/fields/ArrayField.js
index 837aeea7a1..b231c7e2eb 100644
--- a/src/components/fields/ArrayField.js
+++ b/src/components/fields/ArrayField.js
@@ -69,7 +69,7 @@ class ArrayField extends Component {
     const {schema, uiSchema, name} = this.props;
     const title = schema.title || name;
     const {items} = this.state;
-    const SchemaField = this.props.registry.SchemaField;
+    const {SchemaField} = this.props.registry;
     if (isMultiSelect(schema)) {
       return (
         <SelectWidget
diff --git a/src/components/fields/BooleanField.js b/src/components/fields/BooleanField.js
index 10c8281fcc..4e0f43bdf3 100644
--- a/src/components/fields/BooleanField.js
+++ b/src/components/fields/BooleanField.js
@@ -3,7 +3,8 @@ import React, { PropTypes } from "react";
 import { defaultFieldValue, getAlternativeWidget, optionsList } from "../../utils";
 import CheckboxWidget from "./../widgets/CheckboxWidget";
 
-function BooleanField({schema, name, uiSchema, formData, required, onChange}) {
+function BooleanField(props) {
+  const {schema, name, uiSchema, formData, widgets, required, onChange} = props;
   const {title, description} = schema;
   const widget = uiSchema["ui:widget"];
   const commonProps = {
@@ -16,7 +17,7 @@ function BooleanField({schema, name, uiSchema, formData, required, onChange}) {
     required,
   };
   if (widget) {
-    const Widget = getAlternativeWidget(schema.type, widget);
+    const Widget = getAlternativeWidget(schema.type, widget, widgets);
     return <Widget options={optionsList({enum: [true, false]})} {... commonProps} />;
   }
   return <CheckboxWidget {...commonProps} />;
diff --git a/src/components/fields/ObjectField.js b/src/components/fields/ObjectField.js
index 7b12f047d5..4bcc77512c 100644
--- a/src/components/fields/ObjectField.js
+++ b/src/components/fields/ObjectField.js
@@ -67,7 +67,7 @@ class ObjectField extends Component {
               formData={this.state[name]}
               onChange={this.onChange.bind(this, name)}
               registry={this.props.registry} />
-            );
+          );
         })
       }</fieldset>
     );
diff --git a/src/components/fields/SchemaField.js b/src/components/fields/SchemaField.js
index ffa3f2399a..491accf131 100644
--- a/src/components/fields/SchemaField.js
+++ b/src/components/fields/SchemaField.js
@@ -98,6 +98,7 @@ if (process.env.NODE_ENV !== "production") {
   SchemaField.propTypes = {
     schema: PropTypes.object.isRequired,
     uiSchema: PropTypes.object,
+    registry: PropTypes.object,
   };
 }
 
diff --git a/src/components/fields/StringField.js b/src/components/fields/StringField.js
index d496a34a93..833dce108d 100644
--- a/src/components/fields/StringField.js
+++ b/src/components/fields/StringField.js
@@ -5,7 +5,8 @@ import TextWidget from "./../widgets/TextWidget";
 import SelectWidget from "./../widgets/SelectWidget";
 
 
-function StringField({schema, name, uiSchema, formData, required, onChange}) {
+function StringField(props) {
+  const {schema, widgets, name, uiSchema, formData, required, onChange} = props;
   const {title, description} = schema;
   const widget = uiSchema["ui:widget"];
   const commonProps = {
@@ -19,13 +20,13 @@ function StringField({schema, name, uiSchema, formData, required, onChange}) {
   };
   if (Array.isArray(schema.enum)) {
     if (widget) {
-      const Widget = getAlternativeWidget(schema.type, widget);
+      const Widget = getAlternativeWidget(schema.type, widget, widgets);
       return <Widget options={optionsList(schema)} {...commonProps} />;
     }
     return <SelectWidget options={optionsList(schema)} {...commonProps} />;
   }
   if (widget) {
-    const Widget = getAlternativeWidget(schema.type, widget);
+    const Widget = getAlternativeWidget(schema.type, widget, widgets);
     return <Widget {...commonProps} />;
   }
   return <TextWidget {...commonProps} />;
diff --git a/src/utils.js b/src/utils.js
index 6ad084ce30..6513f22d38 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -43,13 +43,16 @@ export function defaultFieldValue(formData, schema) {
   return formData === null ? defaultTypeValue(schema.type) : formData;
 }
 
-export function getAlternativeWidget(type, widget) {
+export function getAlternativeWidget(type, widget, registeredWidgets={}) {
   if (typeof widget === "function") {
     return widget;
   }
   if (typeof widget !== "string") {
     throw new Error(`Unsupported widget definition: ${typeof widget}`);
   }
+  if (widget in registeredWidgets) {
+    return registeredWidgets[widget];
+  }
   if (!altWidgetMap.hasOwnProperty(type)) {
     throw new Error(`No alternative widget for type ${type}`);
   }
diff --git a/test/index_test.js b/test/index_test.js
index fd31aae7ab..0a49186981 100644
--- a/test/index_test.js
+++ b/test/index_test.js
@@ -91,6 +91,26 @@ describe("Form", () => {
     });
   });
 
+  describe("Custom widgets", () => {
+    it("should support custom StringField widgets", () => {
+      const schema = {type: "string"};
+      const uiSchema = {"ui:widget": "foo"};
+      const foo = () => <div id="custom">yo</div>;
+      const {node} = createComponent({schema, uiSchema, widgets: {foo}});
+
+      expect(node.querySelector("#custom").textContent).eql("yo");
+    });
+
+    it("should support custom BooleanField widgets", () => {
+      const schema = {type: "boolean"};
+      const uiSchema = {"ui:widget": "foo"};
+      const foo = () => <div id="custom">yo</div>;
+      const {node} = createComponent({schema, uiSchema, widgets: {foo}});
+
+      expect(node.querySelector("#custom").textContent).eql("yo");
+    });
+  });
+
   describe("Object fields ordering", () => {
     const schema = {
       type: "object",