🌐API Tester
Test REST APIs
🔌
Configure an API request to begin testing
Try: https://jsonplaceholder.typicode.com/posts
⚠️ Requests are sent from your browser. Some APIs block CORS. Sensitive keys should be used carefully.
Perfect for API testing, debugging, backend development, and learning web APIs.
About API Tester
Test REST APIs
100% Free
No hidden costs
Instant Results
Real-time processing
Accurate & Rich
Multiple data sources
Secure & Private
Your data is safe
What is API Tester?
API Tester is a powerful utility designed to help you quickly accomplish your tasks. It operates securely in your browser without requiring any software installation. Simply input your data, configure your settings, and get instant results.
# Initializing API Tester...
# Loading secure environment
# Status: Ready for input
How to use API Tester
Input Data
Enter your text, upload a file, or paste your configuration.
Configure Options
Adjust the settings to match your desired output.
Process
Click the action button to let the tool perform its magic.
Download
Copy the result to your clipboard or download the file.
Key Features
100% Free to Use
No hidden costs, subscriptions, or credit cards required.
Instant Results
Process data locally in your browser with zero latency.
Privacy First
We do not upload or store your personal data on our servers.
Cross-Platform
Works seamlessly on Windows, Mac, Linux, iOS, and Android.
Developer Friendly
Clean, minified, and optimized output for professionals.
No Installation
Access the tool from any modern browser instantly.
Frequently Asked Questions
Yes! Our API Tester is 100% free to use with no limits or restrictions.
No, our tool works directly in your web browser without any installation.
Absolutely. We don't store any of your data on our servers. Processing happens securely in your browser.