Make sure your app
design system
business
product
store
startup
portfolio
brand
landing page
website
enterprise
dashboard
platform
marketing site
prototype
appdesign systembusinessproductstorestartupportfoliobrandlanding pagewebsiteenterprisedashboardplatformmarketing siteprototype
looks great all the time
on mobile
in Chrome
on a tablet
in iOS Safari
in dark mode
in Firefox
as you iterate
before merging
in Edge
continuously
across browsers
in Safari
automatically
all the timeon mobilein Chromeon a tabletin iOS Safariin dark modein Firefoxas you iteratebefore mergingin Edgecontinuouslyacross browsersin Safariautomatically
See styling changes, stop visual regressions, and avoid bugs across browsers.
Loved by world-class developers
Engineers all around the world reach for Happo by choice.

Phil Glass
Monzo
Happo allows us to make changes to components used on hundreds of screens and upgrade core UI dependencies with confidence. It has been a big productivity boost over our previous workflow.

Boris Yordanov
Toptal
Happo to the rescue! It's a direct competitor to Percy, but it's much cheaper, supports more browsers, and is easier to use. Another big selling point? It supports Cypress integration.

Arne Zeising
re:cap
Our Playwright E2E tests passed successfully, as the app's functionality remained intact. However, Happo detected the unwanted changes in the text's color and positioning, which would have been noticeable and disruptive to users.

Adam Neary
Airbnb
Happo is a straight up life-saver. How many times did you think your change was contained only to discover that ten other teams started using what you built, and your change breaks three of the ten? Without Happo, you might not know.

Adrian Burkhart
re:cap
Happo gives us the confidence that we are not introducing any unwanted visual changes in our pull requests. Something that pure end-to-end tests cannot always cover.

Denitsa Kulezich
Happo supports the latest versions of most browsers and emulators. Their speed of image comparison is impressive. They also have Github and CI integration and plugins to support Storybook and Cypress directly.

Gleb Bahmutov
Cypress
Give Happo a try. Convince your team to test it out. You'll have better tests and a better looking application that will not change day to day for the worse.

Eli Hart
Airbnb
The fantastic thing about the test framework is that it lays a foundation for automatically showing every screen in the app and running dynamically generated test code on each one.

Ashley Innocent
Apidog
With Happo, you can easily integrate visual testing into your existing development workflow, and its support for CI/CD ensures you can catch regressions as early as possible.

Samuel Weirich
PILOS (Platform for Interactive Live-Online Seminars)
While CI functional tests are helpful they can't catch visual issues like layout shifts or SVG chart rendering. Happo has become essential to our testing strategy ensuring high-quality products with minimal effort.