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JSON tools

Format, inspect, and convert JSON, validate it against a schema, and turn it into code — without uploading it. Everything is computed in your browser.

- JSON formatter

Pretty-print or minify, sort keys, and validate.
 (/json/formatter)
- JSON Validator

Check strict JSON or JSONC, then explore it as a tree.
 (/json/validator)
- JSON Sort

Sort object keys — top level or every level.
 (/json/sort)
- JSON String Escape

Escape raw text into a JSON string body, and back.
 (/json/escape)
- JSON Query

Pull values out with JSON Pointer or a JSONPath subset.
 (/json/query)
- JSON Diff

Semantic and text comparison of two documents, with an RFC 6902 patch export.
 (/json/diff)
- JSON Converter

Convert JSON to and from YAML, TOML, CSV, XML, NDJSON, query strings, .env, MessagePack, CBOR, and BSON.
 (/json/convert)
- JSON to Code

Generate TypeScript, Go, Rust, and Zod from JSON.
 (/json/codegen)
- JSON Schema Validator

Validate JSON against a JSON Schema — 2020-12, 2019-09, or draft-07 — with every rule stated up front.
 (/json/schema)

9 tool s · everything is computed locally, nothing leaves your device.

Canonical HTML: https://nutter.tools/json
Markdown version: https://nutter.tools/json/index.md
Plain-text version: https://nutter.tools/json/index.txt
Agent index: https://nutter.tools/llms.txt