# Composal vs Trunk Check

By Composal. Sources reviewed: 2026-10-15.

Trunk orchestrates source-level checks before changes land. Composal tests application behavior in a browser after a build runs, returning recordings and steps to reproduce failures.

## 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](https://composal.ai/docs/verify)

## Trunk Check

Managed linters, formatters, and static checks

Trunk Check detects repository technologies and helps teams configure and manage static analyzers, linters, and formatters. It standardizes local and CI checks and keeps selected tools updated.

[Official product or project documentation](https://trunk.io/blog/trunk-check-one-linter-to-run-them-all)

## Where each fits

Choose Trunk when teams need consistent versions and configuration for many code-quality tools. Choose Composal for browser verification against product Scenarios. The tools cover source hygiene and runtime behavior.

## Try this evaluation

Enable representative lint and security checks for one repository, then run a preview with Composal after a user-flow change. Compare fast source feedback with failures that only appear during interaction.

### 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.

- [Trunk Check](https://trunk.io/blog/trunk-check-one-linter-to-run-them-all)
- [Composal Verify](https://composal.ai/docs/verify)
- [Composal Deep Scan](https://composal.ai/product/deep-scan)

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

## Related comparisons

- [Composal vs SonarQube](https://composal.ai/compare/composal-vs-sonarqube.md)
- [Composal vs Snyk Code](https://composal.ai/compare/composal-vs-snyk-code.md)
- [Composal vs Codacy](https://composal.ai/compare/composal-vs-codacy.md)

[All comparisons](https://composal.ai/compare.md)