Chromatic

Founded by Tom Coleman in 2019

Test and review UI components visually before shipping to production

Cost

Free Tier

Rating

★ People love it

Time to value

Quick Setup (< 1 hour)

You can use Chromatic to catch visual, interaction, and accessibility bugs in your UI components before they reach production. It takes snapshots of your components across browsers and viewports, then compares them over time to detect regressions. Teams can assign reviewers, post comments on live components, and track approvals in pull requests. It integrates with Storybook, Playwright, and Cypress, adding visual and accessibility checks without writing new tests.

What Chromatic does

Run visual snapshot tests on every code push across multiple browsersCompare component screenshots between branches to spot regressionsAssign specific team members to review UI changes on open pull requestsDetect WCAG accessibility issues in UI components during CI runsPost inline comments on live component previews during reviewBlock pull request merges when UI review has not been approvedSync UI component library automatically on each code pushSend Slack notifications when a new build is ready for reviewCompares UI snapshots across commits to catch visual regressions automaticallyTests run in real browsers across multiple viewports and themesCustom anti-flake algorithm eliminates false positives from animations and latencyDetects WCAG accessibility violations during regular test runsAssigns reviewers to pull requests and tracks sign-off status in CIWorks with existing Storybook, Playwright, and Cypress tests without extra test writingRuns all tests in parallel for faster resultsConnects agents via MCP to reuse validated UI components in AI-generated code