Send API requests, inspect responses and organise request collections.
Free and open source (MIT licence per GitHub). Web, desktop and CLI clients, with cloud, offline and self-hosted routes.
Developer tools
httpYac
Free optionOpen sourceLocal
Run API requests, assertions and scripts from local HTTP files.
What you can use it for
Run API requests, assertions and scripts from local HTTP files.
- Local HTTP files support environments, scripting and assertions.
- Run requests in the editor or automate them with the CLI.
Workflow coverage and comparison notes
Local API requests, environments, response assertions and scripted runs. Not a hosted collaboration, monitoring or mock-server subscription.
Before you switch
Technical file-based setup. Protocol, authentication and scripting compatibility must be checked against your own collections. No managed cloud team workspace or automatic Postman/Insomnia migration. Your API endpoints and optional infrastructure can still incur charges.
Alternatives to these paid apps
Each comparison covers the workflow described above, rather than every paid feature.
