How to Use Twin Fish Tech JSON Tool

The Twin Fish Tech JSON Tool lets you easily validate, format, and correct JSON online. It’s perfect for developers and API users working with JSON files or data.

1. Input JSON

Paste your JSON text in the input box above. You can copy from an API response, file, or direct output from your application.

2. Choose an Action

• Validate JSON: Checks for syntax errors and invalid structures.
• Format JSON: Beautifies your JSON with indentation and proper structure.
• Fix Errors: Easily identify missing commas, unquoted keys, or mismatched brackets.

3. View Results

• Valid JSON: Displays a green success message ✅.
• Invalid JSON: Shows a detailed red error message ❌ indicating what’s wrong.
• Formatted JSON: Outputs clean, indented JSON for readability.

4. Copy or Clear Results

Use the Copy buttons to copy your JSON input/output or Clear buttons to reset the fields instantly.

5. Benefits of Using This Tool

• Instant JSON validation and formatting.
• No downloads or sign-up needed — 100% free and online.
• Works on all browsers, devices, and platforms.
• Accurate syntax detection with easy-to-understand error messages.