JSON tools
Everything for reading and fixing JSON — formatting, validating with precise error positions, exploring large payloads as a tree, and repairing the malformed documents that APIs actually return.
JSON Formatter
Format, validate and inspect JSON in your browser.
JSON Validator
Validate JSON and get the exact line, column and cause of every syntax error, with a one-click repair.
JSON Viewer
Explore JSON as a collapsible tree.
JSON Minify
Strip every unnecessary byte from JSON — whitespace, newlines and indentation — in one step.
JSON Pretty Print
Pretty print JSON with 2, 3 or 4 spaces, or tabs.
JSON Parser
Parse JSON and inspect the resulting value, with full type information and precise error reporting.
JSON Sorter
Sort JSON object keys alphabetically, at any depth, to make two documents comparable.
JSON Diff
Compare two JSON documents structurally.
JSON Repair
Fix broken JSON automatically — trailing commas, single quotes, unquoted keys, comments and unclosed brackets.
JSON Stringify
Convert JSON into an escaped one-line string literal ready to embed in code, and back again.
JSON to One Line
Collapse a JSON document onto a single line while keeping it valid.
JSON Tree
Visualise JSON as an expandable tree with type badges, array counts and copyable paths.
JSON Editor
Edit JSON with live validation, line numbers, syntax highlighting and inline error markers.
JSON Reader
Open and read JSON files comfortably — upload, drag and drop, or load from a URL.
JSON5 Formatter
Format JSON5 — comments, trailing commas, unquoted keys and single quotes all welcome.
JSON5 Validator
Validate JSON5 documents, including comments, trailing commas and unquoted keys.
JSON Formatter Online
Format JSON online instantly, with validation and a tree view.
JSON to String
Convert JSON into an escaped string literal.