About Argos
Argos is an open source visual testing tool for web interfaces. It compares screenshots from your tests against a baseline and shows what changed on each pull request.
What it does
Argos captures screenshots during test runs and compares them to a baseline from the main branch. Reviewers see the differences, approve them or request fixes, and can skip the noise from flaky tests. It also compares other files such as Markdown, JSON and HTML, and it provides a review view that AI agents can use.
Key features
- Screenshot diffs for each pull request
- Baselines from the main branch for comparison
- Diffs for files such as Markdown, JSON and HTML
- Works with Playwright, Storybook, Vitest and Cypress
- Deterministic capture that waits for fonts and images
Who it's for
Frontend teams and QA engineers who want to catch visual regressions before release. Design system teams that publish Storybook components may find it especially useful.
Pricing and good to know
Argos is open source under the MIT license, and the hosted service has a free start. Team accounts can be managed from Okta or Microsoft Entra ID. The source code is on GitHub.
Highlights
- Screenshot diffs for each pull request
- Baselines from the main branch for comparison
- Diffs for files such as Markdown, JSON and HTML
- Works with Playwright, Storybook, Vitest and Cypress
- Deterministic capture that waits for fonts and images
