Lost Pixel core is OSS. Learn More ->

Ship frontend changes with confidence

Lost Pixel Platform is an open-source alternative to Percy & Chromatic. Start testing your UI components in minutes on GitHub. Catch visual bugs before your users.

Platform

Trusted by engineering teams at:

Ship more.
Worry less.

We help you ship more confidently by catching all visual problems.
Machines are better at spotting visual bugs!

Explore how Lost Pixel Platform works in under a minute

First Class GitHub Integration

Set up in a few minutes and get automatic GitHub status checks. Lost Pixel offers a smooth GitHub action experience

Power of Composition

Use your existing Storybook, Next.js & Playwright to write visual tests. Compose them together to get a holistic view.

Streamlined Review Flow

Lost Pixel UI offers a battle-tested visual testing flow for projects of various sizes and stacks.

Why choose Lost Pixel?

Lost Pixel is a modern, open-source visual regression testing tool that strikes the right balance between convenience, features, and pricing.

Prepare

Mask elements

Mask unneeded elements to ignore them while comparing screenshots.

Execute browser code

Adjust your page CSS & HTML before making the screenshots. Hide elements, change texts - you are in control.

Set thresholds

Every screenshot can have its own threshold for a fine-grained control. Absolute & relative, per screenshot or global.

Alternate

Multiple browsers

Execute Lost Pixel in multiple browsers for catching maximum visual regressions.

Multiple breakpoints

Execute Lost Pixel with multiple device widths for catching visual regressions on different devices.

Composition

Run Storybook stories & Page screenshots(or any other combination) in parallel.

Execute

Speedy execution

Run Lost Pixel in parallel to speed up your test suite.

Approval flow

Visual regression testing flow you will actually like! Approve, reject, and comment on screenshots.

Fight flakiness

Retry flaky tests, use custom wait times, and network utilities that make flakiness magically go away.

Testimonial 04
Lost Pixel is an amazing tool for visual regression testing. We use it to make sure our Prisma Documentations looks good, and that changes to design or content do not introduce any regressions or problems. Lost Pixel is easy to set up, use, and the team is continuously improving based on our feedback. It’s been a great addition to our workflow!

Seamless Integrations


Testimonial 04
We use Lost Pixel to test our design system & application. We really love the speed and simplicity of the UI of Lost Pixel Platform. It helps us to move fast and with confidence.

Setup you will enjoy

Pricing That Makes Sense

We want you to be able to ship things confidently with Lost Pixel's support, not worry every day about exceeding your monthly quota.

Hobby
Free
Startup
$100/mo
Business
$250/mo
Scale
$670/mo
Usage
Usage
Usage
Usage
Shots per Month
7,000
Shots per Month
40,000
Shots per Month
100,000
Shots per Month
300,000
Shot price above quota
-
Shot price above quota
$0.006
Shot price above quota
$0.005
Shot price above quota
$0.004
Admins & Members
Unlimited
Admins & Members
Unlimited
Admins & Members
Unlimited
Admins & Members
Unlimited
Repos & Projects
5
Repos & Projects
Unlimited
Repos & Projects
Unlimited
Repos & Projects
Unlimited
Features
Features
Features
Features
UI platform
UI platform
UI Platform
UI Platform
Priority support
Priority support
Priority support
Priority support

Free for Open Source

Chat with us
We come from an open-source background and are committed to supporting open-source projects that require visual regression testing.
Testimonial 04
Visual regression testing has become very important for our teams - especially the design-system team - to move fast with confidence, and lost-pixel is the best tool for the job: fast, reliable and affordable. 10/10

Get started with Lost Pixel

It only takes a few minutes to get started with Lost Pixel. Use our GitHub action.

FAQs

How is Lost Pixel different to Percy or Chromatic

Lost Pixel core is open source. You could build your own visual testing workflow with it or use it completely for free!

Do you offer integrations with other Git providers?

No. For the first release of Lost Pixel we decided to heavily focus on GitHub as a platform. Lost Pixel offers seamless GitHub action to get started with your visual tests in minutes on GitHub.

What are the most common use-cases for VRT(Visual Regression Tests)?

Design systems(Storybook, Ladle), marketing pages, application UI. Anything that relies on showing UI to the end users.

How to use Lost Pixel holistically on large project?

You can compose Lost Pixel to run visual tests on your Storybook for components, then test your application pages using the page mode and finally pipe the screenshots from your Cypress/Playwright run in custom mode of Lost Pixel

Why do we ask for GitHub Permissions?

We integrate tightly with GitHub and some read permissions are crucial to achieve easy CI/CD workflows with Lost Pixel. We do not store any of your data and we do not have access to your repositories. We only use the GitHub API to create a GitHub App and to create a GitHub Check Run.