One of the most-used tools on On Tap: the JSON Formatter & Validator. Does exactly what it says - paste your JSON, get it formatted beautifully or minified for production.
What makes it useful:
• Instant validation - see syntax errors highlighted as you type
• Smart formatting - proper indentation, color-coded syntax
• One-click minification - strip whitespace for APIs or configs
• Works completely offline - your JSON never leaves your browser
• Handles large files - tested with multi-MB JSON without slowdown
• Copy output with one click
Super handy when you're debugging API responses, cleaning up config files, or just trying to make sense of a wall of JSON someone sent you. No account required, no limits, no tracking.
The validator catches common errors (missing commas, unclosed brackets, trailing commas) and shows you exactly where the problem is. Much faster than trying to eyeball it or waiting for your IDE to load.
