Your PRs Now Come With Tests
Your PRs Now Come With Tests
Self-maintaining UI tests
that evolve with your code.
Self-maintaining UI tests that evolve with your code.
Kate automatically analyzes your pull requests, creates targeted UI checks,
and grows your frontend test suite - one PR at a time.
Kate automatically analyzes your pull requests, runs targeted UI checks, and grows your frontend test suite - one PR at a time.
Built in Germany
EU-Hosted
Secure By Design

Understands Your Changes
Kate indexes your code and uses modern AI agents to inspect the introduced changes on every PR. It automatically identifies which UI flows and components are affected and infers the new intended behavior.


Understands Your Changes
Kate indexes your code and uses modern AI agents to inspect the introduced changes on every PR. It automatically identifies which UI flows and components are affected and infers the new intended behavior.


Understands Your Changes
Kate indexes your code and uses modern AI agents to inspect the introduced changes on every PR. It automatically identifies which UI flows and components are affected and infers the new intended behavior.


Tests what matters
Kate logs into your app and agentically tests new flows exactly as a human would. Rewatch the flows she ran and commit the useful ones to your repo — they’ll rerun automatically on every new PR.


Tests what matters
Kate logs into your app and agentically tests new flows exactly as a human would. Rewatch the flows she ran and commit the useful ones to your repo — they’ll rerun automatically on every new PR.


Tests what matters
Kate logs into your app and agentically tests new flows exactly as a human would. Rewatch the flows she ran and commit the useful ones to your repo — they’ll rerun automatically on every new PR.


Reports where you work
Visual results and clear pass/fail summaries appear right inside your GitHub PR — no context switching. Kate fits naturally into your existing development workflow.


Reports where you work
Visual results and clear pass/fail summaries appear right inside your GitHub PR — no context switching. Kate fits naturally into your existing development workflow.


Reports where you work
Visual results and clear pass/fail summaries appear right inside your GitHub PR — no context switching. Kate fits naturally into your existing development workflow.

Why Teams Give Up On UI Testing
Today's UI testing is fragile, cumbersome and
fails to keep up with real development.
Today's UI testing is fragile, cumbersome and fails to keep up with real development.
Fragile By Design
UI flows change regularly
Selectors break easily
Simple refactors invalidate tests
Fragile By Design
UI flows change regularly
Selectors break easily
Simple refactors invalidate tests
Fragile By Design
UI flows change regularly
Selectors break easily
Simple refactors invalidate tests
Visual Tests Miss Real Behavior
Detect pixel shifts, not broken logic
Pass when functionality is still broken
Fail on harmless UI tweaks
Visual Tests Miss Real Behavior
Detect pixel shifts, not broken logic
Pass when functionality is still broken
Fail on harmless UI tweaks
Visual Tests Miss Real Behavior
Detect pixel shifts, not broken logic
Pass when functionality is still broken
Fail on harmless UI tweaks
Unrealiable "AI First" Tools
Non-deterministic and inconsistent
Hard to reproduce outcomes
Impossible to debug
Unrealiable "AI First" Tools
Non-deterministic and inconsistent
Hard to reproduce outcomes
Impossible to debug
Unrealiable "AI First" Tools
Non-deterministic and inconsistent
Hard to reproduce outcomes
Impossible to debug
Meet Kate - Your Smart UI Reviewer
Kate Understands Intent, Not Pixels -
And Keeps Tests Stable As Your UI Evolves
Kate Understands Intent, Not Pixels - And Keeps Tests Stable As Your UI Evolves
Validates new changes, blocks regressions later
Understands your code diffs
Creates targeted UI tests
Confirms changes work as intended
Validates new changes, blocks regressions later
Understands your code diffs
Creates targeted UI tests
Confirms changes work as intended
Validates new changes, blocks regressions later
Understands your code diffs
Creates targeted UI tests
Confirms changes work as intended
Automatically Adapts To Your Refactors
Understands intent behind changes
Blends AI reasoning with stability
Keeps tests working through changes
Automatically Adapts To Your Refactors
Understands intent behind changes
Blends AI reasoning with stability
Keeps tests working through changes
Automatically Adapts To Your Refactors
Understands intent behind changes
Blends AI reasoning with stability
Keeps tests working through changes
Grows Your Test Suite With Each Pull Request
Creates automatic UI tests on every PR
Lets you commit them to your repo
Increases coverage one PR at a time
Grows Your Test Suite With Each Pull Request
Creates automatic UI tests on every PR
Lets you commit them to your repo
Increases coverage one PR at a time
Grows Your Test Suite With Each Pull Request
Creates automatic UI tests on every PR
Lets you commit them to your repo
Increases coverage one PR at a time
Never write, fix or maintain a test again:
Kate automatically evolves your Tests as your app evolves.
Zero Setup, Instant Value
Works instantly with your existing preview deployments — no scripts, CI setup, or dependencies
Zero Setup, Instant Value
Works instantly with your existing preview deployments — no scripts, CI setup, or dependencies
Zero Setup, Instant Value
Works instantly with your existing preview deployments — no scripts, CI setup, or dependencies
Predictable Meets Adaptable
Delivers deterministic, repeatable automation and falls back to AI when flows change
Predictable Meets Adaptable
Delivers deterministic, repeatable automation and falls back to AI when flows change
Predictable Meets Adaptable
Delivers deterministic, repeatable automation and falls back to AI when flows change
Composable by Design
Uses AI automation to understand intent alongside deterministic code like Playwright
Composable by Design
Uses AI automation to understand intent alongside deterministic code like Playwright
Composable by Design
Uses AI automation to understand intent alongside deterministic code like Playwright
Built For Modern Development
Outputs committable tests in TypeScript, fully compatible with Playwright and CI pipelines
Built For Modern Development
Outputs committable tests in TypeScript, fully compatible with Playwright and CI pipelines
Built For Modern Development
Outputs committable tests in TypeScript, fully compatible with Playwright and CI pipelines

Let Your Test Suite Write itself — One PR at a Time.
Join the waitlist for early community access and private Discord. We’ll only email about access and critical launches.

Let Your Test Suite Write itself — One PR at a Time.
Join the waitlist for early community access and private Discord. We’ll only email about access and critical launches.

Let Your Test Suite Write itself — One PR at a Time.
Join the waitlist for early community access and private Discord. We’ll only email about access and critical launches.


