Free API Playground Online
Professional browser-based HTTP client for testing and debugging REST APIs.
Quick Navigation
Jump to specific sections of the API Playground guide.
Key Features
Powerful capabilities of our api playground.
Multiple Methods
Support for GET, POST, PUT, DELETE, and PATCH.
Custom Headers
Add, enable/disable, and manage custom request headers.
JSON Body Editor
Built-in editor for sending JSON payloads with beautification.
Detailed Responses
View status codes, response time, and payload size.
Local History
Automatically save your request history for quick access.
CORS Friendly
Provides clear feedback on CORS-related execution failures.
How to use API Playground
Select Method
Choose the HTTP method (GET, POST, etc.) for your request.
Enter URL
Input the endpoint URL you want to test.
Configure Request
Add headers or a JSON body if required for the request.
Send & Inspect
Click Send and view the status, timing, and response data.
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Frequently Asked Questions about API Playground
What is CORS?
CORS is a security feature that prevents browsers from making requests to different domains unless the server allows it.
Does it save my data?
Only request history is saved locally in your browser. No data is sent to our servers.
Why use Toolboxed.online?
Toolboxed is a curated suite of high-performance utility tools designed for modern professionals. Unlike other tool sites, we prioritize privacy, speed, and zero distractions. None of your data ever leaves your browser, and we never show annoying ads.