augury 0 editorconfig circleci npm webpack

Angular 2+ development tools for Chrome


Circle CI Slack Status Stories in Ready

Table of content

  1. Introduction
  2. Supported version
  3. Working on Augury
  4. Building and installing locally
  5. Supported version
  6. Working on Augury
  7. Running tests
  8. Reporting issues
  9. Contributing
  10. Known issues


Augury is a Google Chrome Dev Tools extension for debugging Angular 2+ applications.

You can install the extension from Chrome Store.

Inspecting Code

Augury only works with Angular 2+ applications. A hard requirement is that the Angular application is running in development mode, this is due to a security restriction. If you plan to read the original source code, it is a good idea to generate source maps. Otherwise you will be forced to work with the compiled JavaScript code.

Supported version

Augury works with application built starting with Angular 2+.

Working on Augury

Development environment

To develop the Augury extension, the following environment is used:

  • Node
  • Yarn
  • NPM
  • TypeScript

Building and installing locally

git clone git://
cd augury
npm run dev-build
  1. Navigate to chrome://extensions and enable Developer mode.
  2. Choose “Load unpacked extension”.
  3. In the dialog, open the directory you just cloned.

Try out the extension with one of the example app from the Guide.

Running tests

To execute all unit tests, run npm test. It bundles up all files that match *.test.ts into build/test.js, then runs it through tape-run in a headless Electron browser.

Available NPM scripts

To see all available script type npm run in the terminal. The following command are the ones you will mostly be working with.

Command Descrption
build Build the extension
webpack Run webpack
clean Clean node_modules and typings,
postinstall install typings
start Clean build and run webpack in watch mode
test Bundle all *.test.ts and run it through a headless browser
prepack Run npm build before running npm pack
pack Packages the extension and create chrome build augury.crx

Reporting issues

Please search to make sure your issue is not already been reported.

You should report an issue directly from Augury, by clicking on the Augury icon next to the address bar in the browser. It will open up a popup menu with a link to Issue reporting.

Image Issue reporting


General guidelines

If you’d like to help out, please read our Contributing Guidelines.

Augury Architecture

You might want to first checkout the Architecture of this extension.

Join on Slack

If you want to contribute or need help getting started, join us on Slack.

Known issues

Router graph

The router injection technique described below applies to version before those listed below:

Angular v2.3.0
Angular Router v3.3.0
Augury v1.2.8

To be able to view the router graph, you will need to inject the Router in the application Root component as shown below (it must be named router exactly).

export default class KitchenSink {
  constructor(private router: Router) {

Example code

Support for AoT (Ahead-Of-Time) compilation

In order for Angular to expose the debug information for AoT applications, you will have to explicitly set the debug flag to true in your project’s tsconfig.json as such:

"angularCompilerOptions": {
  /* ... */
  "debug": true

Note: This debug flag and development mode in Angular runtime are two completely different settings.

To learn more about AoT compilation, visit this section of Angular documentation.

Support for enableDebugTools()

Prior to Angular 2.2.0, enableDebugTools() would clobber ng.probe, which breaks Augury. Prior to that version, this workaround will circumvent the issue.



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