The best REST API Builder available online. Lightning-fast, privacy-first, and developer-friendly.
100% free, no signup required. Works entirely in your browser.
Open REST API BuilderSet up your API request or data.
Run or process the request.
See the formatted response.
Yes, the REST API Builder is completely free with no request limits or restrictions. Build and test as many API requests as you need during development and debugging. All HTTP methods, headers, and body formats are supported without any premium requirements.
Yes, the REST API Builder sends actual HTTP requests to the specified endpoints and displays the real response including status code, headers, and body. This makes it a powerful alternative to desktop tools like Postman for quick API testing. CORS restrictions may apply for some endpoints.
The builder supports JSON, XML, form-data, URL-encoded, raw text, and binary body formats. Request and response data can be viewed in formatted JSON, raw text, or headers view. It handles all standard HTTP methods including GET, POST, PUT, PATCH, DELETE, HEAD, and OPTIONS.
