Lost Pixel
UnclaimedHolistic visual regression testing in the cloud for confident frontend development.
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TL;DR - Lost Pixel
- Open-source visual regression testing platform for frontend teams.
- Integrates with GitHub, Storybook, Next.js, and Playwright for automated visual testing.
- Catches visual bugs across browsers and breakpoints with a streamlined review process.
Pricing: Free plan available
Best for: Growing teams
What is Lost Pixel?
Lost Pixel is an open-source visual regression testing platform designed to help engineering teams ship frontend changes with confidence. It catches visual bugs before they reach users by comparing screenshots of UI components and pages across different states, browsers, and breakpoints. The platform integrates seamlessly with GitHub, providing automated status checks and a streamlined review flow for visual changes.
Built by engineers who faced real-world challenges in maintaining visual consistency, Lost Pixel is an alternative to tools like Percy and Chromatic. It allows users to leverage existing Storybook, Next.js, and Playwright setups for writing visual tests. The platform is suitable for projects of various sizes and stacks, offering features like element masking, custom CSS/HTML execution, threshold setting, parallel execution, and flakiness mitigation. It aims to provide a balance of convenience, features, and pricing, with a strong commitment to supporting open-source projects.
Available on: Web
Pros & Cons
Pros
- Open-source core allows for free usage and custom workflows.
- Seamless integration with GitHub actions for easy setup.
- Supports existing development tools like Storybook, Next.js, and Playwright.
- Offers advanced features like element masking, custom code execution, and flakiness mitigation.
- Provides a clear and affordable pricing model, including a generous free tier.
Cons
- Currently only integrates with GitHub, not other Git providers.
- Requires some technical setup for integration with existing projects.
Preview
Key Features
First-class GitHub integration with automatic status checksComposition with Storybook, Next.js, and PlaywrightStreamlined visual review flow (approve, reject, comment)Masking of unneeded elements in screenshotsExecution of custom browser code (CSS/HTML adjustment)Configurable thresholds (absolute & relative) per screenshot or globallyMultiple browser execution for visual regression detectionMultiple breakpoint execution for responsive design testing
Pricing Plans
Pricing checked Jul 24, 2026
Free
Free
- 7 000 screenshots per month included
- Unlimited collaborators
- Monorepo support
- Anti-flakiness measures
- First class GitHub integration
Startup
$100
- 40 000 screenshots
- $0.006 per screenshot
Business
$250
- 100 000 screnshots
- $0.005 per screenshot
Scale
$670
- 300 000 screenshots
- $0.004 per screenshot
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Lost Pixel FAQ
How does Lost Pixel help ensure UI consistency across different environments?
Lost Pixel ensures UI consistency by comparing screenshots of UI components and pages across various states, browsers, and breakpoints. This process helps engineering teams catch visual bugs before they impact users, maintaining a consistent frontend experience.
Which teams would benefit most from using Lost Pixel?
Lost Pixel is ideal for engineering teams focused on frontend development who need to ship changes with confidence. It is suitable for projects of various sizes and stacks, especially those leveraging Storybook, Next.js, or Playwright.
How does Lost Pixel compare to Percy for visual regression testing?
Lost Pixel, like Percy, provides visual regression testing to catch UI bugs. However, Lost Pixel distinguishes itself with an open-source core that allows for free usage and custom workflows, and it integrates seamlessly with existing Storybook, Next.js, and Playwright setups.
What kind of limitations should users be aware of when adopting Lost Pixel?
A primary limitation of Lost Pixel is its current integration exclusively with GitHub, meaning it does not support other Git providers. Additionally, integrating it with existing projects requires some technical setup.
How is Lost Pixel priced?
Lost Pixel is available on a free tier, allowing users to get started without initial cost. For projects requiring more extensive usage and advanced features, paid plans are offered.
Can Lost Pixel integrate with existing development tools?
Yes, Lost Pixel is designed to integrate seamlessly with existing development tools. It allows users to leverage their current Storybook, Next.js, and Playwright setups for writing visual tests.
Does Lost Pixel offer features to mitigate test flakiness?
Yes, Lost Pixel includes features specifically designed for flakiness mitigation. This helps ensure that visual regression tests provide reliable and consistent results, reducing false positives.
Source: lost-pixel.com