# JSON Formatter & API Tester – JSON Viewer, REST Client
Make JSON easier to read and test APIs directly from your Android device. JSON Formatter & API Tester is a developer utility for formatting JSON, validating data, viewing API responses and testing HTTP requests.
Whether you're a Flutter developer, backend engineer, web developer or student, use this toolkit to inspect JSON data and debug APIs while you're on the go.
## JSON Formatter & Viewer
Turn messy or minified JSON into clean, readable data.
- **Format JSON:** Beautify JSON with proper indentation and structure.
- **Validate JSON:** Check whether your JSON data is valid.
- **Minify JSON:** Remove unnecessary whitespace for compact output.
- **View JSON:** Explore objects, arrays, keys and values in a readable format.
- **Copy JSON:** Copy formatted output for use in your code or projects.
- **Handle API responses:** Quickly format JSON received from an API.
## REST API Tester & HTTP Client
Send API requests and inspect server responses from your phone.
- Test REST APIs using supported HTTP methods.
- Enter an API endpoint URL and configure your request.
- Add custom headers and query parameters.
- Send JSON request bodies when supported by the selected method.
- View the API response and inspect returned data.
- Check response status codes and troubleshoot API issues.
Use the API tester to debug your own development and testing endpoints.
## Designed for Developers
JSON Formatter & API Tester is useful for:
- Flutter and Android developers
- Backend developers working with REST APIs
- Web developers and programmers
- QA engineers and software testers
- Students learning JSON and API development
## Simple and Convenient
Work with JSON and APIs using a practical mobile developer toolkit. Format data, prepare requests and inspect responses without needing to switch between multiple apps.
Download JSON Formatter & API Tester by Programming Keeda and simplify your everyday development workflow.
**Note:** Use the app only with APIs you are authorized to access. Avoid entering sensitive credentials or private data unless you understand how the app handles that information.
Format, validate and beautify JSON. Test REST APIs with headers and requests.