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APIs often return compressed JSON without whitespace. Our formatter adds proper indentation, line breaks, and syntax highlighting to make data structure clear and debuggable.
Automatically detects syntax errors like missing commas, unclosed brackets, or invalid characters. Essential for debugging malformed JSON from APIs or configuration files.
Large JSON objects become manageable with collapsible tree navigation. Quickly locate specific keys, understand nested relationships, and focus on relevant data sections.
Master JSON formatting with our comprehensive guide. Learn every feature and become a JSON processing expert.
{"name":"John","age":30,"city":"NYC","skills":["JavaScript","Python"]}This minified JSON becomes beautifully formatted and easy to read!
Use the search box to find specific keys or values in large JSON files. Navigate through matches with arrow buttons or Enter/Shift+Enter.
Click "Edit" in formatted view to modify JSON directly. The editor validates syntax in real-time and applies changes instantly.
Expand/collapse nodes to focus on specific data sections. Use "Expand All" and "Collapse All" buttons for quick navigation.
Access your last 10 formatted JSONs from the history panel. Position it at bottom, left, or right based on your workflow.
Click the fullscreen button for distraction-free editing. Perfect for working with large JSON files or complex data structures.
Download formatted JSON as a .json file or copy to clipboard. Perfect for saving cleaned-up API responses or configuration files.
Problem: API returns minified JSON that's impossible to read.
Solution: Paste the response, click Parse, and explore the tree view to understand the data structure.
Perfect for REST API testing and debugging
Problem: Messy package.json or config files with inconsistent formatting.
Solution: Format with proper indentation, then use edit mode to make changes safely.
Great for package.json, tsconfig.json, and other config files
Problem: Large JSON datasets are hard to navigate and understand.
Solution: Use tree view with search to find specific data points and understand relationships.
Ideal for exploring database exports and analytics data
Problem: Invalid JSON with syntax errors breaks your application.
Solution: Our parser auto-fixes common issues like trailing commas, unquoted keys, and Python-style syntax.
Handles True/False, None, single quotes, and more
Common Causes: Missing quotes around keys, trailing commas, single quotes instead of double quotes.
Solution: Our parser auto-fixes most issues. For manual fixes, check for unmatched brackets and proper quote usage.
Issue: Very large JSON files (>1MB) may slow down the browser.
Solution: Use our JSON Compressor first to reduce file size, or work with smaller data chunks.
Check: Search is case-sensitive and looks for exact matches in both keys and values.
Tip: Try searching for partial strings or use the tree view to navigate manually.
Try the formatter above with your own JSON data, or explore our other tools for complete JSON processing.