Screenshot testing for Storybook
Ship UI with confidence — find visual regressions early, see the effect of style updates, and prevent bugs across multiple browsers and platforms.
Before
After
Before
After
Trusted by the industry
Happo is used by a multitude of tech companies, including Fortune 500 companies in San Francisco, web agencies in Brasil, Insurance Companies in Japan, and many more.
Happo takes screenshots of your UI components
Find bugs before your code is shipped to production. Visual regression testing with Happo lets you move faster and with more confidence.
⨠ happo run
Initializing... ✓
Pre-rendering 1,238 examples... ✓
Waiting for Chrome results... ✓
Waiting for Firefox results... ✓
Done! View results here:
https://happo.io/a/1/report/a5cdf4d
Initializing... ✓
Pre-rendering 1,238 examples... ✓
Waiting for Chrome results... ✓
Waiting for Firefox results... ✓
Done! View results here:
https://happo.io/a/1/report/a5cdf4d
Get notified when bugs are introduced
No more manual parsing of CSS
See the effects of changes directly
Test individual components in isolation
Happo build flow
Push your code
Happo takes screenshots
Compare with previous versions
Cross-browser and platform agnostic
For web projects, Happo uses Chrome, Firefox, Safari, iOS Safari, and Edge to take screenshots of components. Native apps can integrate directly with the Happo API.
