Paste, format, and read JSON without leaving your browser. Auto pretty-print, tree and text views, syntax highlighting, and search.
Add to ChromeJSON responses are formatted the moment you open them — no clicking, no copy-pasting into another tab.
Collapse deep objects in the tree view, or switch to raw text when you need the whole payload at once.
Paste anything into the input page to reformat it, minify it, or get the exact line and column of a syntax error.
Jump between matches with previous/next, so you can find one key in a very large document.
Light and dark themes, adjustable font family, font size, and tab width — all remembered between sessions.
No tracking, no analytics, no accounts. Your JSON never leaves your browser.