Jina now proactively monitors your app for issues. Learn more →

AI users that test your app

Jina creates synthetic users that explore your app and catch issues like real humans. Prompts become self-healing tests. Functional testing on autopilot.

Features
1

Build E2E tests from a single prompt

Prompt Jina to explore your app and set up a test case along with assertions.

  • Use for regressions, feature launches, production monitoring
  • No more writing or maintaining tests
  • Engineering team ships quickly with confidence
1

Testing Instructions

Example: E-commerce Checkout

"Test the checkout flow for our e-commerce site. Verify a user can add items to cart, enter shipping details, and complete purchase."

2

AI-Generated Test Plan

Click on product "Running Shoes"
Assert: Product page displays
Click "Add to Cart"
Click "Checkout"
Assert: Checkout form visible
Type "123 Main St" in address
Click "Complete Order"
Assert: Order confirmation displays

Test Case: Product Search

Self-Healed
1
Navigate to homepage
Passed
2
Click search input field
Self-healed
AI: Selector updated from #search-input to [data-testid="search-box"].
3
Type "running shoes"
Passed
4
Assert: Search suggestions appear
Passed
5
Press Enter key
Passed
6
Assert: Search results display
Passed
2

Self-healing, minimal maintenance

Tests that adapt to shifting UI and don't break on minor changes.

  • Adapts to visual or structural changes automatically
  • Not tied to brittle DOM selectors
  • Tests only fail when real user flows break
3

Automate your test runs

Run tests on a schedule, in CI/CD, or via API.

  • Trigger tests as part of your pipeline
  • Run on-demand through a REST API
  • Schedule automated test runs

Test Case: Checkout Flow

8 steps · Last run: 2 hours ago
Runs every 4 hours

Automation Settings

Schedule
Run on a timer
CI/CD
Trigger on deployment
API
Trigger via webhook

Enterprise-grade security

Jina is built with security at its core, ensuring your applications and data remain protected.

Secure by Design

Jina operates with strict permissions and never stores sensitive data outside your environment.

Data Privacy

Your application data never leaves your infrastructure. Tests run in your secure environment.

Compliance Ready

Designed to help meet compliance requirements for regulated industries.

Private Deployment

Deploy Jina in your own infrastructure for complete control and security.

Open Source · Built by the Jina team

Meet Lumen, the browser agent that powers Jina

We built Lumen — a state-of-the-art, open-source browser agent — and it's the engine running under Jina. Vision-first. No DOM. No brittle selectors. Just a model that sees your app the way a real user does.

29%
faster than browser-use
63%
faster than Stagehand
fewer tokens than Stagehand
Framework
Success
Avg. Time
Tokens
oursLumen
100%
77.8s
104K
browser-use
100%
109.8s
Stagehand
76%
207.8s
200K

WebVoyager subset · 25 tasks · 15 sites · Claude Sonnet 4.6 · Gemini 2.5 Flash judge · 3 trials

Vision-first loop

Screenshot → model → action → repeat. Lumen reads the page the way a human does, not through a fragile element tree.

Self-healing replay

Cache actions, replay without the model. When a page changes, Lumen adapts automatically — no broken tests, no maintenance burden.

Streaming SDK

agent.stream() yields typed StreamEvent objects. Plug real-time agent progress directly into your UI or pipeline.

Any model, your stack

Works with Anthropic, Google, OpenAI, or any OpenAI-compatible endpoint. No vendor lock-in.

agentic-qa.ts
1 import { LumenAgent } from "lumen"
2
3 const agent = new LumenAgent({
4 provider: "anthropic",
5 model: "claude-sonnet-4-6",
6 });
7
8 for await (const event of agent.stream({
9 url: "https://your-app.com",
10 task: "Complete checkout",
11})) {
12 console.log(event.type, event.data)
13}
output
actionNavigate to checkout page
actionClick "Add to Cart"
assertionOrder confirmation visible ✓
completeTask completed in 4.2s

Bring agentic QA and browser automation to your own stack. Lumen is open-source and ready to embed.

Frequently asked questions

Everything you need to know about Jina.

Jina is an autonomous AI QA engineer. You describe what to test in plain English, and Jina generates, runs, and maintains end-to-end tests for your web application — no code required.

Simply provide a prompt describing a user flow (e.g. "test the checkout process"). Jina explores your app, maps out the steps, generates assertions, and produces a fully executable test plan automatically.

No. Jina is designed for teams of all technical levels. Product managers, QA analysts, and engineers can all create tests using natural language prompts.

When your UI changes — a button moves, a selector gets renamed — Jina detects the change and automatically updates the test to match the new state. Tests only fail when a real user flow breaks, not because of minor UI updates.

Jina provides a REST API and native integrations for popular CI/CD pipelines. You can trigger test runs on every deployment, on a schedule, or on demand via webhook.

Jina SRE is our proactive monitoring product. While Jina QA helps you build and run tests, Jina SRE continuously watches your live application, detects anomalies, and attempts to fix issues before your users notice them. Learn more at sre.usejina.com.

Yes. Jina operates with strict least-privilege permissions and your application data never leaves your infrastructure. We also support private deployment in your own cloud environment for complete control.

Cypress and Playwright require engineers to write and maintain code for every test. Jina generates and maintains tests automatically from plain-English prompts, self-heals when the UI changes, and requires zero ongoing test maintenance.