Argos is a visual regression testing tool for catching UI changes in CI. Compare its free Hobby plan, usage-based Pro pricing, and key features for 2026.
Argos is a visual regression testing tool that automatically detects unintended changes to a web application's user interface by comparing screenshots captured during continuous integration runs against an approved baseline.
Founded in 2023 by Greg Bergé, Argos is often described as an open-source-friendly alternative to Chromatic, capturing screenshots within a team's own CI pipeline (for example via Playwright or Storybook) rather than exclusively in a vendor-hosted cloud environment.
The tool integrates directly with GitHub and GitLab, surfacing visual diffs as part of the normal pull or merge request review process so teams can catch UI regressions before they ship.
Argos uses pixel-diffing rather than purely heuristic comparison engines, which the company positions as more precise and less prone to unpredictable extra charges tied to fuzzy-match algorithms.
It supports Storybook (via Vitest or the Storybook Test Runner) for component-level visual testing, plus a CLI and REST API for teams that want to wire visual checks into custom test suites or full end-to-end flows.
Flaky detection helps filter out false-positive diffs caused by inherently unstable UI elements, and team features like collaborative review, Slack notifications, and private deployment protection support larger engineering organizations.
Argos prices based on screenshot usage rather than the number of seats on a team. The Hobby plan is free forever and includes up to 5,000 screenshots per month, along with core visual testing, Storybook support, a CLI and REST API, flaky detection, and GitHub/GitLab integration.
The Pro plan starts at $100 per month for 35,000 included screenshots, adding team collaboration, private deployment protection, Slack notifications, and professional support; additional screenshots cost $0.004 each ($0.0015 for Storybook screenshots), and GitHub SSO is available as a $50 per month add-on.
An Enterprise plan offers custom screenshot volumes, SAML SSO, fine-grained access control, dedicated support, and a 99.99% uptime SLA for organizations with larger-scale or compliance-sensitive needs.
Argos automatically compares UI screenshots captured during CI runs against an approved baseline to detect unintended visual regressions.
Yes, Argos offers a free Hobby plan with up to 5,000 screenshots per month; paid plans start at $100 per month based on usage.
Argos captures screenshots within the user's own CI environment rather than requiring cloud-based capture, and its core testing engine is open source.
Yes, Argos supports Storybook visual testing via Vitest or the Storybook Test Runner.
Argos prices based on the number of screenshots processed per month rather than the number of team seats.
Argos was founded in 2023 by Greg Bergé.
Yes, Argos integrates natively with both GitHub and GitLab, showing visual diffs in pull and merge requests.