CODINGNOW JSON Formatter
Format, validate & explore JSON — 100% in your browser
CODINGNOW JSON Formatter launched on June 2, 2026 with 5 votes, #2,466 of 22,647 launches that month and more than 75% of that year's launches.
What it does
A free, single-file JSON formatter, validator and tree viewer. Pretty-print or minify, jump to the exact line:column of any error, and browse big JSON in a collapsible, color-coded tree. Everything runs in your browser — no upload, no signup, no ads.
Paste JSON to instantly pretty-print, validate with line/column error positions, and explore it in a collapsible tree. Indent 2/4/tab, minify, copy & download. No upload, no tracking, no signup — everything runs in your browser.
A 100% free JSON formatter . Paste JSON to instantly pretty-print it, validate it with exact line/column error positions, and explore its structure in a collapsible tree view . Indent 2/4/tab, minify , copy & download. Your input is never sent to a server — everything runs in your browser , so even sensitive API responses and token-laden JSON are safe to paste. The widget below is the actual tool. Paste JSON on the left and hit Format to see the prettified result and stats on the right. Minify · tree view · copy · download and file drag-and-drop are all supported. (shortcut Ctrl/⌘ + Enter ) Pasted JSON, neatly formatted. Keys, strings, numbers, booleans, and null are color-coded. Many…from coding-now.com
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