Insomnia
API client for REST, GraphQL, WebSockets and gRPC, with local, Git or cloud storage.
Apache-2.0Permissive
SaaS: YesClosed product: Yes
- GitHub stars
- 40k
- Deployment
- Desktop
Open-source alternatives to Postman
Postman in the Developer tools category. These are the open alternatives we recommend looking at.
Yaak
Desktop API client for REST, GraphQL, WebSockets and gRPC.
MITPermissive
SaaS: YesClosed product: Yes
- GitHub stars
- 19.3k
- Deployment
- Desktop
Requestly
API client and tool for intercepting and modifying HTTP traffic, an alternative to Postman.
SaaS: Yes, with conditionsClosed product: No
- GitHub stars
- 6.8k
- Deployment
- Desktop
Hoppscotch
API client for testing REST, GraphQL and WebSocket on the web, desktop or command line.
MITPermissive
SaaS: YesClosed product: Yes
- GitHub stars
- 80.6k
- Deployment
- Docker
- Login/SSO
- OIDC, SAML
Bruno
Desktop API client that stores requests as files in your Git repo.
MITPermissive
SaaS: YesClosed product: Yes
- GitHub stars
- 47.3k
- Deployment
- Desktop
This is guidance, not legal advice (inte juridisk rådgivning). Check with a lawyer before deciding.
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