Garry Pshonik edited this page May 25, 2017 · 43 revisions

Welcome to the Bundler & Minifier wiki!

Build status NuGet

The purpose of this project is to make it easier to concatenate (bundle) and minify CSS, JavaScript and HTML files without using a verbose toolchain.


The Bundler & Minifier consists can be used in a variety of ways:

Visual Studio

For Visual Studio 2015 users it is highly recommended to use the free Bundler & Minifier extension.

For more info on the Visual Studio extension, check out the readme page.

Visual Studio Code

To use this tool in Visual Studio Code, you first need to install it in project.json. See Command Line Interface for details.

When installation in project.json is done, you are ready to setup the tasks.

Setup tasks in tasks.json

If you haven't setup any tasks for your project yet, start by invoking the command bar by hitting F1. Then type tasks and select Tasks: Configure Task Runner

Configure Task Runner

This will create the .vscode/tasks.json file and you can add the following snippet:

    "version": "0.1.0",
    "command": "dotnet",
    "options": {
        // Make sure this points to the directory containing project.json
        "cwd": "${workspaceRoot}/src/MyApp"
    "isShellCommand": true,
    "showOutput": "always",
    "tasks": [
            "taskName": "build",
            "problemMatcher": "$msCompile",
            "isBuildCommand": true
            "taskName": "bundle"
            "taskName": "clean",
            "args": [ "bundle", "clean" ],
            "suppressTaskName": true
            "taskName": "watch",
            "args": [ "bundle", "watch" ],
            "suppressTaskName": true,
            "isWatching": true

After configuring tasks.json you can now invoke the command bar (F1) and access the taks.

VSCode Command bar

Running the bundle task will produce output like this:

Running with configuration from c:\Users\name\Projects\MyApp\src\MyApp\bundleconfig.json
Processing wwwroot/css/site.min.css
Processing wwwroot/js/site.min.js

Command Line Interface (.NET Core)

The CLI tool must be installed into project.json in the tools object to make it available.

"tools": {
  "BundlerMinifier.Core": "2.0.238"

For .csproj, add

    <DotNetCliToolReference Include="BundlerMinifier.Core" Version="2.0.238" />

Optionally register the dotnet bundle command now available as a precompile script in project.json:

"scripts": {
  "precompile": [ "dotnet bundle" ]

The working directory must be the same location as where the project.json file is.

> dotnet bundle

This is the main function. Running dotnet bundle will automatically find the bundleconfig.json file if it exist in the working directory.

> dotnet bundle clean

Executing dotnet bundle clean will delete all output files from disk.

> dotnet bundle watch

To automatically run the bundler when input files change, call dotnet bundle watch. This will monitor any file changes to input files in the working directory and execute the bundler automatically.

> dotnet bundle help

Get help on how to use the CLI.

ASP.NET Helpers

The bundleconfig.json file can be read at runtime by ASP.NET and automatically inject the needed <script> and <link> tags. Read more at Unbundling scripts for debugging

ASP.NET Core TagHelper

This is planned and will be coming soon...