Network
Send HTTP requests directly from your browser (subject to CORS).
Runs entirely in your browser
Nothing you paste is uploaded. Monaco and Prettier load on demand from this origin.
This tool makes live network requests
Unlike every other SafePaper tool, this one talks to the server you point it at — directly from your browser. Requests are still sent from your device only, but they are subject to the target's CORS policy, so some endpoints will refuse cross-origin calls.
Request
There is no upload endpoint — your files are processed in this browser tab. Open your network tab and check. See how it stays private.
How to HTTP client
- Set the request. Enter the URL, method, headers, and body.
- Send. The request goes from your browser to the endpoint.
- Inspect. Read the status, headers, and response body.
Testing an API means firing requests and reading responses. A browser-based client lets you do that without installing a desktop app, with full control over method, headers, and body.
Turn a working request into code with cURL to code, and build its query string with the query string builder. Note browser CORS rules apply.
Frequently asked questions
Where do my requests go?
Directly from your browser to the URL you specify. We don't proxy or log them; the only server contacted is the API you're testing.
Why might a request be blocked by CORS?
Browsers enforce CORS, so an API without permissive CORS headers may reject a browser request. The response/errors help you diagnose it.
Is my request data stored?
No. The client runs in your browser and doesn't send your requests or tokens to us.
Related tools
- cURL to codeTurn a cURL command into fetch, axios, Python requests, or Go — locally.
- Query stringParse and build URL query strings with a key/value editor.
- JSON toolkitFormat, validate, minify, and explore JSON in a collapsible tree — all in your browser.
- WebSocket testerConnect to a WebSocket endpoint and send/receive messages.