Prompt
I'm building an internal tool and need a simple way to test REST APIs, what should I use?
Latest observation
Oct 6, 2026
OpenAI APIWeb search: off
For a simple internal tool to test REST APIs, the easiest options are:
- Postman — best all-around choice if you want a GUI, collections, variables, auth handling, and team sharing.
- Insomnia — simpler and lighter than Postman, great for quick manual API testing.
- cURL — best if you want something built-in, scriptable, and easy to automate from the command line.
If you’re building an internal tool and want the fastest path:
- Use Postman if non-technical teammates will use it.
- Use cURL if it’s mainly for developers and automation.
- Use Insomnia if you want a clean, lightweight GUI.
If you want, I can also recommend the best option based on:
- your team size,
- whether you need auth/testing environments, and
- whether it should be desktop, web, or CLI.