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Ship fast with AI Testing

Extend Playwright with AI. Write resilient tests in plain English that self-heal. Eliminate flaky tests and ship reliable software faster.

Use Stably where you work

stably.ai

AI Test Builder

Describe the test you want to build in plain English.

Fill the onboard form for my tech startup

Test Steps

AI Generating...

1
Navigate to www.gusto.com
2
If you see a cookie consent dialog, dismiss it
3
Fill the onboard form for my tech startup
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stably.ai

Payroll Setup

Demo website completing the onboarding form automatically

Company Legal Name

Number of Employees

State

Plain English Prompt

Writing the test scenario...

Company Legal Name

Number of Employees

State

Trusted by fast-growing companies

End-to-end testing on autopilot

Get started Documentation

>stably

?What would you like to do?› - Use arrow-keys. Return to submit.

› - Use arrow-keys. Return to submit.

❯Plan- Strategize testing coverage

Create- Generate new test suites

Run- Execute existing tests

Fix tests- Repair broken tests

Plan

Strategize your testing coverage with AI-driven insights.

Create

Generate comprehensive test suites in minutes using natural language.

Run

Execute tests across multiple environments and browsers in parallel.

Fix tests

Automatically detect and repair broken tests with self-healing AI.

Visual Editor

Build tests visually.
Sync with code instantly.

Get started with our delightful no-code web editor. It feels like using v0 or Lovable, but produces production-ready Playwright code that syncs bi-directionally with your local repo.

Editorapp.stably.ai/editor

Connected

Navigate to checkout...

Navigate to /shop

Click 'Add to Cart'

Fill 'Email' with test@example.com

Click 'Checkout'

Syncing to local...

localhost:3000/shop

Natural Language or Record

Describe your test case in plain English, or just interact with your app. Our AI converts it all to stable Playwright code.

Local Sync

Everything you do in the cloud editor syncs instantly to your local VS Code environment. No more copy-pasting.

Powerful Recorder

Take over at any time. Our recorder captures precise interactions, assertions, and handles dynamic content automatically.

The most reliable testing AI

Stably outperforms general-purpose AI by training on proprietary datasets, achieving state-of-the-art results.

100%

80%

60%

40%

20%

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claude-opus-4-5

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browser-use

Enterprise Ready

Built for Current and Future Enterprise

Stably provides enterprise-grade security, full testing control, and high-volume tiers with DPAs, SLAs, and unlimited parallel runs.

Talk to an expert Try Stably for free

Security & privacy

Configurable data handling

Encrypt data at rest and in transit, configure retention windows, and opt out of model training without losing observability.

Compliance

SOC 2 aligned controls

SOC 2 compliant processes with audit logging, vulnerability management, and paper-ready DPAs and SLAs for procurement teams.

Access control

Single Sign-On (SAML)

Integrate with Okta, Azure AD, Google Workspace, and more so every teammate can access Stably with your existing identity provider.

After comparing all AI testing solutions, Stably stands leagues ahead. Its ease of use and advanced handling of complex flows is unmatched in the market.
Lucas Del Yerro
Senior Test Automation Engineer, Curebase

Don't take our word for it

See what our users have to say about us

Tom Alexander

Engineering Manager, ClickHouse

Stably is awesome!

Andrew Shield

Senior Engineer, Tofu

We actually enjoy writing tests with Stably — something I never thought I'd say. We're migrating all our Playwright tests over.

Gustavo Silva

CTO, Origin

We compared many AI QA tools. Stably is the one that actually works.

Tom Alexander

Engineering Manager, ClickHouse

Stably is awesome!

Andrew Shield

Senior Engineer, Tofu

We actually enjoy writing tests with Stably — something I never thought I'd say. We're migrating all our Playwright tests over.

Gustavo Silva

CTO, Origin

We compared many AI QA tools. Stably is the one that actually works.

Tom Alexander

Engineering Manager, ClickHouse

Stably is awesome!

Andrew Shield

Senior Engineer, Tofu

We actually enjoy writing tests with Stably — something I never thought I'd say. We're migrating all our Playwright tests over.

Gustavo Silva

CTO, Origin

We compared many AI QA tools. Stably is the one that actually works.

Tom Alexander

Engineering Manager, ClickHouse

Stably is awesome!

Andrew Shield

Senior Engineer, Tofu

We actually enjoy writing tests with Stably — something I never thought I'd say. We're migrating all our Playwright tests over.

Gustavo Silva

CTO, Origin

We compared many AI QA tools. Stably is the one that actually works.

Lucas Del Yerro

Senior Test Automation Engineer, Curebase

After comparing all AI testing solutions, Stably stands leagues ahead. Its ease of use and advanced handling of complex flows is unmatched in the market.

Siddhi Mittal

Co-founder, Yhangry

Best investment our team has made. Stably dramatically increased our user conversion rates by eliminating bugs.

Ben Kramer

CTO, Monterey

With Stably's tests in place, I'm confident our users won't encounter critical bugs anymore.

Lucas Del Yerro

Senior Test Automation Engineer, Curebase

After comparing all AI testing solutions, Stably stands leagues ahead. Its ease of use and advanced handling of complex flows is unmatched in the market.

Siddhi Mittal

Co-founder, Yhangry

Best investment our team has made. Stably dramatically increased our user conversion rates by eliminating bugs.

Ben Kramer

CTO, Monterey

With Stably's tests in place, I'm confident our users won't encounter critical bugs anymore.

Lucas Del Yerro

Senior Test Automation Engineer, Curebase

After comparing all AI testing solutions, Stably stands leagues ahead. Its ease of use and advanced handling of complex flows is unmatched in the market.

Siddhi Mittal

Co-founder, Yhangry

Best investment our team has made. Stably dramatically increased our user conversion rates by eliminating bugs.

Ben Kramer

CTO, Monterey

With Stably's tests in place, I'm confident our users won't encounter critical bugs anymore.

Lucas Del Yerro

Senior Test Automation Engineer, Curebase

After comparing all AI testing solutions, Stably stands leagues ahead. Its ease of use and advanced handling of complex flows is unmatched in the market.

Siddhi Mittal

Co-founder, Yhangry

Best investment our team has made. Stably dramatically increased our user conversion rates by eliminating bugs.

Ben Kramer

CTO, Monterey

With Stably's tests in place, I'm confident our users won't encounter critical bugs anymore.

Vikas Vair

CPO, OpenLayer

Stably's AI makes UI testing effortless while actually simulating real user flows. Our CI/CD pipeline has already caught several critical bugs that would have impacted users.

Shuangling Yin

CTO, InspectMind

Stably helps us catch bugs before production without manual testing or maintaining complex tests.

Mike Wang

CTO, Avina

Stably is a game-changer for us. It has transformed our testing process, enabling us to catch bugs before they reach production. Highly recommend!

Vikas Vair

CPO, OpenLayer

Stably's AI makes UI testing effortless while actually simulating real user flows. Our CI/CD pipeline has already caught several critical bugs that would have impacted users.

Shuangling Yin

CTO, InspectMind

Stably helps us catch bugs before production without manual testing or maintaining complex tests.

Mike Wang

CTO, Avina

Stably is a game-changer for us. It has transformed our testing process, enabling us to catch bugs before they reach production. Highly recommend!

Vikas Vair

CPO, OpenLayer

Stably's AI makes UI testing effortless while actually simulating real user flows. Our CI/CD pipeline has already caught several critical bugs that would have impacted users.

Shuangling Yin

CTO, InspectMind

Stably helps us catch bugs before production without manual testing or maintaining complex tests.

Mike Wang

CTO, Avina

Stably is a game-changer for us. It has transformed our testing process, enabling us to catch bugs before they reach production. Highly recommend!

Vikas Vair

CPO, OpenLayer

Stably's AI makes UI testing effortless while actually simulating real user flows. Our CI/CD pipeline has already caught several critical bugs that would have impacted users.

Shuangling Yin

CTO, InspectMind

Stably helps us catch bugs before production without manual testing or maintaining complex tests.

Mike Wang

CTO, Avina

Stably is a game-changer for us. It has transformed our testing process, enabling us to catch bugs before they reach production. Highly recommend!

Frequently Asked Questions

Answers to common questions about Stably AI and its features. If you have any other questions, please don't hesitate to contact us.

General

Features & Capabilities

Integration & Support

Ship Faster. Test Smarter.

Start 14-day free trial Book Demo

Cancel anytime, no questions asked

Extend Playwright with AI. Write resilient tests in plain English that self-heal. Eliminate flaky tests and ship reliable software faster.

Use Stably where you work

Payroll Setup

End-to-end testing on autopilot

Plan

Create

Run

Fix tests

Build tests visually. Sync with code instantly.

Natural Language or Record

Local Sync

Powerful Recorder

The most reliable testing AI

Built for Current and Future Enterprise

Configurable data handling

SOC 2 aligned controls

Single Sign-On (SAML)

Don't take our word for it

Tom Alexander

Andrew Shield

Gustavo Silva

Tom Alexander

Andrew Shield

Gustavo Silva

Tom Alexander

Andrew Shield

Gustavo Silva

Tom Alexander

Andrew Shield

Gustavo Silva

Lucas Del Yerro

Siddhi Mittal

Ben Kramer

Lucas Del Yerro

Siddhi Mittal

Ben Kramer

Lucas Del Yerro

Siddhi Mittal

Ben Kramer

Lucas Del Yerro

Siddhi Mittal

Ben Kramer

Vikas Vair

Shuangling Yin

Mike Wang

Vikas Vair

Shuangling Yin

Mike Wang

Vikas Vair

Shuangling Yin

Mike Wang

Vikas Vair

Shuangling Yin

Mike Wang

Frequently Asked Questions

General

What is Stably AI?

Do I need coding experience to create tests with Stably?

What pricing plans are available?

Features & Capabilities

How does the AI auto-healing work?

What are AI Steps and how do they work?

How reliable are Stably's AI-powered tests compared to traditional automated tests?

How quickly can teams create and deploy tests with Stably?

Integration & Support

What types of web applications does Stably support?

How does Stably integrate with existing CI/CD pipelines?

Can Stably handle complex authentication and bot detection systems?

Ship Faster. Test Smarter.

Build tests visually.
Sync with code instantly.