{ }

/json

JSON Tools

Parse, format, validate and convert JSON — the lingua franca of APIs.

23 tools6 popularruns locally

JSON Tools23 tools indexed

Pretty-print, validate and minify JSON with syntax highlighting.

json-formatteropen

Validate JSON against RFC 8259 with precise error locations.

json-validatoropen

Strip whitespace for the smallest possible JSON payload.

json-minifieropen

Convert arrays of objects into clean, downloadable CSV.

json-to-csvopen

Parse CSV into structured JSON arrays instantly.

csv-to-jsonopen

Convert JSON objects to well-formed XML.

json-to-xmlopen

Bidirectional JSON ↔ YAML conversion.

json-to-yamlopen

Convert YAML configuration files to JSON.

yaml-to-jsonopen

JSON to TypeScript

Generate TypeScript interfaces from any JSON sample.

json-to-typescriptopen

JSON to Zod Schema

Generate Zod validation schemas from any JSON sample.

json-to-zodopen

JSON to Pydantic

Generate Pydantic v2 models from any JSON sample.

json-to-pydanticopen

JSON to Go Struct

Generate idiomatic Go structs with JSON tags from any sample.

json-to-go-structopen

JSON Schema Generator

Generate a JSON Schema from any JSON sample.

json-schema-generatoropen

Compare two JSON documents and highlight differences.

Fix broken, malformed or LLM-generated JSON automatically.

json-repairopen

JSONPath Tester

Run JSONPath queries against any JSON document.

jsonpath-testeropen

Run jq queries in the browser — no install needed.

jq-playgroundopen

JSON Tree Viewer

Browse large JSON files as a collapsible tree.

json-vieweropen

Convert JSON configuration to TOML format.

json-to-tomlopen

JSON Escape / Unescape

Escape or unescape special characters in JSON strings.

json-escapeopen

Alphabetise all object keys recursively.

sort-json-keysopen

Flatten nested JSON to dot-notation key-value pairs.

flatten-jsonopen

Render a JSON array as a sortable HTML table.

json-to-tableopen

23 shown·23 total

indexed locally · 0ms network

FAQ

About JSON tools

Quick answers to the questions developers ask most.

What is JSON and why format it?

JSON (JavaScript Object Notation) is the standard data-interchange format used by virtually every web API. Formatting it adds indentation and line breaks to make it human-readable — critical for debugging API responses.

Is my JSON data safe here?

Yes — 100%. All JSON processing happens in your browser using JavaScript's native JSON.parse(). Nothing is ever sent to a server. You can safely paste API tokens, internal data, or sensitive payloads.

What's the difference between formatting and validating?

Formatting just adds whitespace for readability. Validating checks whether the document conforms to the JSON specification — catching issues like trailing commas, single quotes, or unescaped characters.

Are JSON tools free on TryDevTools?

Yes. Every json tool is completely free — no account, no subscription, no upsells.

Is my data ever sent to a server?

Never. Every tool processes data entirely in your browser using JavaScript. Open your browser's network tab while using any tool — you'll see zero outbound requests.

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Other categories

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