Paste messy JSON, get clean output instantly. Runs entirely in your browser — your data never leaves your machine.
Open the command palette from any page. No new tabs, no context switching. Type "json" and you're formatting.
Your JSON never touches a server. Everything runs in-browser with zero network requests.
Paste any text — ArcPanel detects JSON automatically and offers to format it. Works with clipboard history too.
Base64, JWT decode, regex tester, color picker, hash generator, and 43 other tools. All in one extension.
Yes. ArcPanel is completely free with no ads, no accounts, and no usage limits. The JSON formatter is one of 49 tools included in the extension.
No. All processing happens locally in your browser. Your JSON data never leaves your machine. There are no analytics, no tracking, and no server-side processing.
Press ⌘K (or Ctrl+K on Windows/Linux) on any webpage, then type "json". Select "JSON Pretty" from the results and paste your JSON. You can also pipe output from other tools into the formatter.
Yes. ArcPanel highlights syntax errors with line numbers and descriptions. You can format, validate, and minify JSON all from the same tool.
Yes — you can try ArcPanel in your browser without installing anything. The Chrome extension adds keyboard shortcut access from any page.
Online formatters require you to open a new tab and paste your data into a website. ArcPanel lives in your browser — press ⌘K, type "json", paste, done. Your data stays local and you never leave your current page.
49 developer tools, one keystroke away.
Add to Chrome — Free