Agentic QA

Composal vs mabl

Both products address independent verification of software, including agent-written changes. The useful distinction is the test estate and operating model your team needs.

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 →

mabl

Agentic application verification

mabl describes an independent verification platform with application context, agentic testing and coverage across web, mobile and APIs. Its published workflow also emphasizes resilient tests and traceability.

What each tool does

“With setup” means you supply code or configuration. “Not confirmed” means support for this workflow needs checking with the vendor.

Composal and mabl workflow capabilities
Workflow	Composal	mabl
Run browser journeys	Yes Run saved browser Scenarios and return recordings and reproducible Findings.	Yes Runs automated checks against application behavior.
Map application workflows	Yes Discovery maps key application areas and user journeys.	Not confirmed Test impact analysis and agentic authoring help select or create tests; check workflow mapping separately.
Explore for unexpected issues	Yes Deep Scan explores the running application and reports reproducible issues.	Not confirmed Check whether this product includes this workflow in your intended plan and setup.
Describe checks in plain English	Yes Author Scenarios around the intended user outcome, then review the steps and expected results.	Yes mabl documents conversational test planning and agent-assisted test authoring.
Run or inspect from a terminal	Yes Use the CLI to start and inspect verification runs and their Findings.	Yes The mabl CLI runs tests and supports agent-assisted test authoring and debugging.

Where each fits

Consider mabl for its broader application-testing platform and enterprise quality workflow. Consider Composal for web-focused Scenarios and exploratory QA with browser evidence and coding-agent handoff.

Try this evaluation

Run a browser journey with a backend prerequisite in both products. Compare setup, assertions, failure diagnosis and the effort required to keep the check useful after a UI change.

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?