Select To Format JSON
Extension Actions
Select JSON text, right-click, and view formatted JSON in a popup window.
Select To Format JSON — instantly beautify JSON from any webpage.
HOW TO USE
1. Select any JSON text on a page
2. Right-click → "Format JSON"
3. A clean popup appears with your JSON formatted and syntax-highlighted
FEATURES
• Syntax highlighting — keys, strings, numbers, booleans, and nulls each have distinct colors
• Auto-fix — handles common JSON issues like single quotes, unquoted keys, and extra wrapping
• Copy button — copies the formatted JSON to your clipboard in one click
• Footer info — shows top-level key count or array length at a glance
• Keyboard shortcut — press Escape to dismiss the popup
• No setup — works on any website, no configuration needed
• Privacy-first — no data is ever sent anywhere; everything runs locally in your browser
PERFECT FOR
• Developers inspecting API responses
• Anyone dealing with raw JSON in web pages or documentation
• Debugging JSON that's hard to read without formatting
No sign-in, no tracking, no permissions beyond what's needed