Space
Open-source CLIAI + Playwright

Agentic end-to-end testing for real apps.Define missions, test like a user.

Write user journeys in plain English. Testronaut uses AI agents and Playwright to execute them in real browsers and produce actionable test reports.

npm install -g testronaut
Open Source
Real Browser
Agentic Testing
Actionable Reports

Why Testronaut

Agentic testing for complete user journeys, powered by AI reasoning and Playwright.

Plain-English missions

Define flows in natural language or lightweight JS. Fewer brittle selectors, more productivity.

Deterministic tool use

Guided actions via Playwright + structured DOM context. Less flakiness, clearer failures.

Mission Control reports

Visualize pass/fail, tokens, and screenshots across suites. Upload from CI with one command.

Agentic Testing

What is agentic end-to-end testing?

Traditional end-to-end tests follow a predefined sequence of selectors and assertions. Agentic end-to-end testing gives an AI agent a user goal and the context it needs to reason about the interface, choose actions, and adapt as the journey unfolds.

Testronaut combines that reasoning with Playwright browser automation so missions can exercise real user journeys while still producing repeatable, inspectable test reports.

Explore agentic testing research and guides →

Bring your own LLM

Use your own API key. Choose your preferred provider below — Testronaut adapts automatically.

OpenAI Logo

OpenAI

  • • GPT-5.6 Sol (default)
  • • GPT-5.6 Terra / Luna
  • • GPT-5.5
  • • Legacy GPT / o-series models
Google Gemini Logo

Google Gemini

  • • Gemini 2.5 Pro
  • • Gemini 2.5 Flash
  • • Gemini 2.5 Flash-8B
  • • Gemini 3.0 Pro
Claude Logo

Anthropic Claude

  • • Claude Sonnet 5
  • • Claude Opus 5
  • • Claude Haiku 4.5
  • • Native tool and vision support

From mission to execution

Write a mission, run it, review the report. That’s it.

  • • Write: Define a goal like “Log in and purchase an item”.
  • • Run: Testronaut controls a real browser with Playwright.
  • • Report: Upload to Mission Control for insights.
//Write:
  // missions/login.mission.js
  import { runMissions } from 'testronaut';

  export const loginMission = 
    `Visit ${YOUR_SITE_HERE}.
    Fill the username field with ${USERNAME} 
    Fill the password field with ${PASSWORD}
    Click the Login button.
    Wait for the dashboard to appear.
    Take a screenshot
    Report SUCCESS if the dashboard is loaded, 
    otherwise report FAILURE.`;

  export async function executeMission() {
    await runMissions({
      mission: loginMission
    }, "Login Mission");
  }

  // Run:
  testronaut login.mission.js

  //Report:
  testronaut upload

See it in action

Review an example Mission Control report walkthrough.

Ready to launch?

Join the community and start running missions today.

FAQ

How is this different from Playwright/Cypress?

Testronaut uses LLM reasoning + structured DOM to perform steps from plain-English missions, then runs real browsers via Playwright. It aims to reduce brittle selectors and speed up authoring.

Is there a UI?

Yes — Mission Control lets you upload and visualize reports across runs, suites, and teams.

Is it open source?

The CLI is open source. Mission Control is a hosted companion for collaboration and analytics.

Where do I start?

Install the CLI with npm and join Discord for help. See the README for mission examples.