Lost Pixel

Repository: lost-pixel/lost-pixel Homepage

Metrics as of 2026-09-22, from the GitHub or GitLab API of each repository. Refreshed monthly.

What Lost Pixel is

Lost Pixel is an open-source tool for visual regression tests. It compares screenshots of Storybook, Ladle and Histoire stories, application pages, and custom screenshot directories. Tests run in Chrome, Firefox or Safari, with responsive breakpoints and viewports. Configuration lives in a lostpixel.config.ts file, and the README shows runs triggered from a GitHub Actions workflow. Documented options include sensitivity thresholds, retries for flaky tests, and masking of UI regions excluded from comparison. The repository holds the core engine, while a separate hosted platform adds a review and approval interface. The README announces that the team is joining Figma and that the product is being sunset.

Written from the project's README, read 2026-09-22.

Category: Visual regression
License: MIT
Language: TypeScript
Changelog: Releases on GitHub

Repository metrics

Repository metrics
Stars	1,682¹
Forks	87¹
Open issues and PRs	67¹
Contributors	24¹
Commits in the last 90 days	0¹
Last commit	2026-04-22¹
Last release	v3.22.0, 2024-11-14¹
Fetched	2026-09-22

¹ Fetched from the GitHub or GitLab API on 2026-09-22. Hover a value for its own date.

Status

archivedThe repository is marked archived on its host.

Computed from the last commit date and the archive flag on the fetch date. See the status rules.

Alternatives

Listed visual regression tools, same primary language first, then by GitHub stars. Each line gives one fact from the tool's documentation where it differs from Lost Pixel's, with its source.

reg-suit: Test authoring format: Image files in a configured directory (actualDir); settings in regconfig.json. source: README
Testplane: Browsers: Chrome, Firefox, Edge, Safari; local, Docker grid (Selenoid) or remote cloud (BrowserStack, Sauce Labs). source: Docs: Browsers
BackstopJS: Browsers: Chrome Headless via Puppeteer; Chromium, Firefox, WebKit via Playwright. source: README
pixelmatch: Test authoring format: Code (JavaScript function on raw image data); CLI binary for PNG images. source: README
jest-image-snapshot: Framework integrations: Jest (matcher; stored images update with jest --updateSnapshot). source: README
Loki: Browsers: Chrome (in Docker, in AWS Lambda, or local app); iOS simulator; Android emulator. source: README
Visual Regression Tracker: Browsers: Any platform that produces a screenshot: web, mobile, desktop. source: README

Questions

Is Lost Pixel open source?

Yes. Lost Pixel is released under MIT, an OSI-approved license, as reported by the GitHub API on 2026-09-22.

Is Lost Pixel maintained?

On 2026-09-22, the last commit to the default branch was on 2026-04-22, so the listed status is archived. Rule: The repository is marked archived on its host.

How many GitHub stars does Lost Pixel have?

1,682 stars on 2026-09-22, from the GitHub API. The number is refreshed at each monthly update.

What language is Lost Pixel written in?

The repository's primary language, as reported by the GitHub API, is TypeScript.

Sources

GitHub REST API: repository, read 2026-09-22
GitHub REST API: commits, read 2026-09-22
GitHub REST API: latest release, read 2026-09-22
GitHub REST API: contributors, read 2026-09-22
README, read 2026-09-22