API and performance testing
Composal vs Bruno
Bruno makes API request collections portable and reviewable in source control. Composal provides hosted browser Scenarios and exploratory QA with Findings tied to application runs.
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 →Bruno
Git-friendly API client and test collections
Bruno is an open-source API client that stores collections as plain-text files in a local project directory.
What each tool does
“With setup” means you supply code or configuration. “Not confirmed” means support for this workflow needs checking with the vendor.
| Workflow | Composal | Bruno |
|---|---|---|
| Run browser journeys | Yes Run saved browser Scenarios and return recordings and reproducible Findings. | Not confirmed Check whether this product includes this workflow in your intended plan and setup. |
| Map application workflows | Yes Discovery maps key application areas and user journeys. | Not confirmed Check whether this product includes this workflow in your intended plan and setup. |
| 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. | Not confirmed Check whether this product includes this workflow in your intended plan and setup. |
| Run or inspect from a terminal | Yes Use the CLI to start and inspect verification runs and their Findings. | With setup Connect its specialist checks to your development workflow using supported integrations. |
| API and protocol testing | No Use a dedicated tool for this specialist workflow alongside Composal’s browser verification. | Yes Bruno is an open-source API client that stores collections as plain-text files in a local project directory. |
Where each fits
Choose Bruno when local-first API exploration, plain-text collections, and Git review fit your team’s working style.
Try this evaluation
Select a flow that reads and updates an API resource. Store the request sequence in a Bruno collection and define the corresponding user outcome in Composal.
- 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?