What is protractor?

angular/protractor — explained in plain English

Analysis updated 2026-06-24

★ 8,679JavaScriptAudience · developerComplexity · 3/5Setup · moderate

Mindmap

mindmap
  root((Protractor))
    What It Does
      End-to-end testing
      Real browser control
      Angular focused
    How It Works
      Built on WebDriver
      Node.js runtime
      Simulates user actions
    Use Cases
      Form and click tests
      Regression testing
      Angular AngularJS apps
    Getting Help
      Stack Overflow
      Community chat
      Project website

mindmap root((Protractor)) What It Does End-to-end testing Real browser control Angular focused How It Works Built on WebDriver Node.js runtime Simulates user actions Use Cases Form and click tests Regression testing Angular AngularJS apps Getting Help Stack Overflow Community chat Project website

Click or tap to explore — scroll the page freely

What do people build with it?

USE CASE 1

Write end-to-end tests for an Angular app that simulate real user actions like clicking buttons and filling out forms.

USE CASE 2

Run automated browser-based regression tests against an AngularJS application before deploying changes.

USE CASE 3

Verify that page interactions in a web application produce the expected results in a real browser environment.

What is it built with?

JavaScriptNode.jsWebDriver

How does it compare?

	angular/protractor	primer/octicons	prosemirror/prosemirror
Stars	8,679	8,680	8,678
Language	JavaScript	JavaScript	JavaScript
Setup difficulty	moderate	easy	hard
Complexity	3/5	2/5	4/5
Audience	developer	developer	developer

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · moderate Time to first run · 30min

Requires Node.js and a WebDriver-compatible browser driver such as ChromeDriver configured alongside Protractor.

So what is it?

Protractor is a testing tool for web applications built with Angular and AngularJS, two popular frameworks for building websites. Its purpose is to run end-to-end tests, meaning it opens a real browser, interacts with your application the way a real user would by clicking buttons and filling in forms, and checks that the results are correct. Under the hood, Protractor is built on top of WebDriver, which is a standard interface for controlling web browsers programmatically. It runs as a Node.js program, so you need Node.js installed to use it. Protractor was the official end-to-end testing tool recommended for Angular applications for many years. The README is minimal and directs users to the separate Protractor website for tutorials, full documentation, and API references. The README does not describe the current maintenance status of the project in detail, but Protractor has historically been closely tied to the Angular team. For questions, the README points to Stack Overflow and a community chat room rather than GitHub issues.

Copy-paste prompts

Prompt 1

Set up Protractor for an existing Angular project: show me how to install it, write a basic end-to-end test that navigates to a page and clicks a button, and run the test suite.

Prompt 2

Write a Protractor test spec that fills out a login form in an Angular app, submits it, and asserts that the user lands on the dashboard page.

Prompt 3

How do I configure Protractor to run end-to-end tests against a locally running AngularJS application using Chrome?

Prompt 4

Convert this manual test case into a Protractor test: open the homepage, click the Sign Up button, fill in name and email, and verify the confirmation message appears.

Frequently asked questions