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Description
Format, minify, and validate JSON instantly — private, offline, no tabs. JSON Formatter helps you format, minify, validate, and explore JSON without opening another website. Features: • Pretty-print JSON with 2 or 4 space indent • Minify JSON for compact output • Validate JSON with clear error messages • Collapsible tree view — expand/collapse every {} and [] • Copy result in one click • Paste and auto-format • Right-click selected text → “Format JSON” • Keyboard shortcut: Ctrl+Shift+J (⌘+Shift+J on Mac) Privacy: All formatting happens locally in your browser. Your JSON is not sent to a server. How to use: 1. Click the extension icon to open the side panel 2. Paste JSON into Input 3. Click Format, Minify, or Validate 4. Copy the result when ready Optional: select JSON on any page, right-click, and choose “Format JSON”.