Is API Payload Tester (Mini Postman) free for developers?▾
Yes, completely free. No API key, no rate limits, no signup required.
Is the data I paste into API Payload Tester (Mini Postman) sent to any server?▾
No. API Payload Tester (Mini Postman) processes everything locally in your browser. Your code and data stay private.
Can I use API Payload Tester (Mini Postman) as part of my workflow?▾
Absolutely. API Payload Tester (Mini Postman) is designed to be a quick, frictionless part of your development workflow.
Does API Payload Tester (Mini Postman) work without internet?▾
Once the page is loaded, most features of API Payload Tester (Mini Postman) work offline since processing is browser-based.
Is API Payload Tester (Mini Postman) open source?▾
The tool runs in your browser using open web standards. No proprietary black-box servers are involved.