6 Best API Testing Tools Every Developer Should Know in 2025
By CodeWritely Team·
api testingpostmaninsomniadeveloper tools
| Tool | Best For | Price |
|---|---|---|
| Postman | Full-featured, teams | Free/$12 |
| Insomnia | GraphQL, clean UI | Free/$5 |
| Thunder Client | VS Code native | Free |
| Hoppscotch | Browser-based, open source | Free |
| Bruno | Git-friendly, offline | Free |
| HTTPie | Terminal, beautiful output | Free |
Our pick: Postman for teams, Insomnia for solo GraphQL, Thunder Client for VS Code users.
Disclosure: Some links are affiliate links.