All tools
JSON Formatter
PopularFormat, beautify, and minify JSON in your browser. Free, private, and instant — no upload to a server.
JSON Validator
PopularValidate JSON instantly in your browser. See type, size, and node counts — or exact parse errors with line and column.
JSON Viewer
PopularExplore JSON as an interactive tree with paths, types, and expandable nodes — all processed locally in your browser.
JSON Compare
Compare two JSON documents structurally. Find added, removed, changed, and type-changed paths — privately in your browser.
JSON Diff
Generate a unified diff of two JSON documents after pretty-printing. Ideal for reading line-level changes quickly.
JSON Escape
Escape text into a JSON string literal, or unescape a JSON string back to raw text — instantly and offline.