Fetch Tester
Test API requests using JavaScript fetch. Send GET, POST, PUT and DELETE requests directly from browser.
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Status
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Time
✔ Runs in browser · ✔ No data stored · ✔ Free forever
How to Use Fetch Tester
- Enter the API URL you want to test.
- You can create a test API using Fake API Generator or Fake API Server .
- Select request method (GET, POST, PUT, DELETE).
- Add headers or JSON body if required. You can format JSON using Code Formatter .
- Click Run Fetch and inspect the response. You can analyze text using Word Counter or Keyword Counter .
Why Use Fetch Tester
- Test REST APIs
- Debug API responses
- Learn fetch API
- Check JSON response
- Prototype frontend apps
Notes
- Some APIs block browser requests
- CORS errors may occur
- Headers must be valid JSON
Have a suggestion?
Missing a feature or have an idea to improve this tool? Let me know — I read every suggestion.