Hello Developers! 👋
API testing is an important aspect of contemporary software development practice. Although Postman is a commonly used tool, there are several great open-source tools that could be chosen to conduct API testing.
What open-source API testing tool would you recommend?
Some of the most common tools include:
- Bruno
- Hoppscotch
- Insomnia
- Yaak
- HTTPie
- REST Client (VS Code)
Let's talk about:
- What API testing tool do you use on a regular basis?
- What was your reasoning behind choosing this tool?
- What features do you find the most interesting in this tool?
- Is it good for teamwork?
- Would you recommend this tool to be used instead of Postman?
I have recently started working with Bruno, and it is currently my preferred API testing tool of choice with open-source capabilities.
What makes Bruno so great?
For collaboration, it works great if the entire team already uses Git. Collections of APIs can be easily reviewed via pull requests – a very clean solution compared to syncing via a proprietary cloud-based platform.
Would I choose Bruno over Postman? Absolutely, for some teams. If the team relies on Git workflow and doesn’t need any additional cloud storage, Bruno is definitely worth considering as an alternative to Postman. Postman is still more versatile when it comes to collaboration, but Bruno is slowly becoming one of the top open-source tools in 2026.
Interesting to see how Hoppscotch and Yaak will evolve as well – these tools seem promising too.