Import your wayPaste a Swagger or OpenAPI URL, import a JSON suite, drop in a file, or paste routes and cURL commands.
Free online API testing workspace
Test REST APIs and complete workflows in one browser workspace
Devman API is a fast REST API client for developers and QA teams. Import Swagger or OpenAPI, load Postman collections, paste cURL commands, connect requests with variables, and inspect every HTTP response.
- Swagger & OpenAPI
- Postman collections
- cURL importer
- Sequential workflows
- Response inspection
Workspace
Build the flow, run it, and inspect each request without leaving the page.
Paste routes, one per line: METHOD /path (method optional, defaults to GET).
Or import a Postman collection or full engine.sh suite JSON (suites/*.json) below to get its
staged/sequential execution, variable capture between steps, and known-bug flags for free.
Drag the ⠿ handle on a row to move it into a different group, or use the same grip on a
group to reorder groups. Click a group header to expand or collapse it, use the pencil to rename it,
run or duplicate one group from its header, or select several groups and run only that selection — every row waits for
the previous response, and selected groups still run top to bottom.
Quick add endpoints
Paste endpoint lines or complete cURL commands. Headers, cookies, and bodies are imported.
Drop a JSON collection or suite here
Postman collections, engine suites, Devman API exports, and the template all work.
0 endpoints
(none yet — run something)
Method
Path
Role
Body (JSON, optional)
Expect
Result