REST API Tester
Send HTTP requests directly from your browser — no install required. View response body, headers, status codes, and timing. Alternative to Postman.
Enter a URL and click Send Request
Supports GET, POST, PUT, PATCH, DELETE • Bearer Token & Basic Auth
How do I use REST API Tester?
Select an HTTP method (GET, POST, PUT, etc.) from the dropdown.
Enter the API endpoint URL in the address bar.
Add Query Params, Headers, Body, or Auth as needed in the tabs.
Click Send Request — the response appears below with status, timing, and size.
Switch to CORS Proxy mode if the API blocks browser cross-origin requests.
What features does REST API Tester offer?
7 HTTP methods: GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS
JSON body editor with syntax validation
Bearer Token and Basic Auth support
Response body with auto-formatting, headers, status, timing, size
CORS Proxy mode for APIs that block browser requests
Frequently Asked Questions about REST API Tester
Why does my request fail with a CORS error?
Browsers block cross-origin requests when the target API doesn't include CORS headers. Enable CORS Proxy mode — JoyTools will relay the request server-side to bypass this restriction.
Is my API data private?
In Direct mode, requests go straight from your browser to the API — JoyTools sees nothing. In CORS Proxy mode, the request is relayed through JoyTools servers but is not logged or stored.
Can I send POST requests with a JSON body?
Yes. Select POST, click the Body tab, choose JSON mode, and write your payload in the body editor. Content-Type: application/json is added automatically.
How does this compare to Hoppscotch?
Both run in the browser with no install. Hoppscotch requires a workspace account to save collections. JoyTools REST API Tester works immediately — open the page and send your first request without signing in.
Explore Related Online Tools
SQL Formatter
Format and beautify SQL queries with support for multiple dialects including PostgreSQL, MySQL, SQLite, and more.
JSON Formatter
Format, validate, and minify JSON data instantly. Detect syntax errors with precise line and column information.
YAML Formatter
Format and validate YAML documents. Convert between YAML and JSON effortlessly, all in your browser.
