Composal vs Percy

Percy reports visual deltas; Composal reports whether user journeys and exploratory behavior meet expectations. A screenshot difference can reveal a layout regression but may not establish that a form or permission flow works.

See where each fits ↓

Two workflows, side by side

Composal

Composal sends AI browser agents to use your running web app and check the outcomes you care about. Define journeys as plain-English Scenarios, map existing flows with Discovery, or explore for bugs with Deep Scan. Runs keep recordings and reproduction steps so your team or coding agent can investigate a Finding.

Verify documentation →

Percy

Visual regression review in CI

Percy captures rendered pages or components and compares them with baselines so teams can review visual changes with each code update.

Read Percy's product documentation ↗

Where each fits

Choose Percy when pull requests need repeatable screenshot comparisons and reviewers want to approve or reject visual changes.

Try this evaluation

Use a UI change that intentionally adjusts spacing and a second change that breaks the save action without altering the page appearance.

Coverage: Which user outcomes must this release prove, and which specialist checks must stay in your existing stack?
Setup: Who prepares accounts, test data, permissions and access to the deployment being tested?
Evidence: Can the engineer reproduce a reported failure from the recording and steps, without asking the tester to investigate again?
Ownership: Who updates the checks when the product changes, and can the team review what a passing result actually proves?

Sources and scope

Prepared by Composal with AI-assisted research using the linked first-party product pages and documentation. These are workflow comparisons, not independent benchmarks or an exhaustive feature inventory. A documented capability is not a guarantee for every plan or environment; validate your own requirements in a trial.

No comparative speed, price or accuracy score is claimed here. Product names belong to their respective owners.