JSON Tools
Format, validate, view, and transform JSON — entirely in your browser, with nothing uploaded.
JSON Formatter
Editor's choiceFormat, beautify, minify, and validate JSON locally. Choose indentation, sort keys, preserve Unicode, inspect statistics, and copy or download clean output.
JSON Validator
Editor's choiceValidate JSON online with precise line and column diagnostics, targeted repair hints, structure inspection, and browser-only processing — no upload, no account.
JSON Viewer
Editor's choiceView JSON online in an interactive collapsible tree with 6 type badges, 4-scope search, JSON path inspection, structure statistics, and browser-only processing — no upload, no account.
JSON Tree Viewer
Editor's choiceExplore JSON as a searchable interactive tree with path-aware navigation, collapsible objects and arrays, node inspection, type badges, copy-path actions, statistics, and private browser processing.
JSON Diff
Editor's choiceCompare two JSON documents locally with path-aware added, removed, and changed reporting for nested objects, arrays, and primitives — both inputs stay in your browser.
JSON Minifier
Editor's choiceMinify and compress JSON online — remove whitespace, sort keys, escape Unicode, measure exact byte savings, and download compact JSON privately in your browser without any upload.
JSON Beautifier
Editor's choiceBeautify minified JSON into readable, configurable output with indentation, key sorting, Unicode controls, validation, statistics, and local downloads.
JSON Repair
Editor's choiceRepair broken JSON in your browser with conservative, transparent fixes for trailing commas, comments, single quotes, and bare keys — review every change, export only when valid.
JSON Escape / Unescape
Editor's choiceEscape raw text for a JSON string or unescape JSON string content back to readable text. Handle quotes, backslashes, control characters, Unicode, line breaks, tabs, and optional slash escaping privately in your browser.
JSON Compare
Editor's choiceCompare two JSON objects or files online — see every added, removed, and changed value with JSONPath, before/after previews, filters, search, and a downloadable report. 100% private.
JSON Editor
Editor's choiceEdit JSON online in a private browser-based editor with line numbers, live validation, syntax-aware formatting, key sorting, Unicode support, search, and local export — nothing uploaded.
JSON Schema Validator
Editor's choiceValidate a JSON instance against a JSON Schema locally — Draft 4/6/7 and 2020-12 common subset, path-aware errors by keyword, type, format, required, composition, and local $refs. 100% browser-only, no upload.
JSON to TypeScript Interface
Editor's choiceConvert JSON to TypeScript interfaces, type aliases, or enums in your browser. Infer nested objects, arrays, unions, readonly modifiers, optional and nullable fields, safe names, and downloadable .ts definitions from any JSON sample.
JSON Path Tester
Editor's choiceTest JSONPath expressions against any JSON document instantly. Evaluate wildcards, recursive descent, filter expressions, slices, negative indexes, and compound &&/|| filters — all private, all in your browser.
JSON Schema Generator
Editor's choiceGenerate a reviewable JSON Schema from a JSON sample locally. Infer nested objects, arrays, required fields, nullable values, common formats, additionalProperties, and draft metadata — copy or download the result. No upload, no account.