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JSON & data

View & format

JSON Viewer JSON Sort JSON Escaper JSON Editor

Transform

JSON Flatten JSON Patch

JSON Merge Patch

Validate & query

JSON Schema Validator JSON Schema Generator

JSONPath Tester JSON Size Analyzer JSON Linter JMESPath Tester

Convert

JSON to YAML JSON to TOML JSON to SQL JSON to .env JSON to PHP Array JS Object to JSON MessagePack Converter JSON to TOON JSON to CSV, YAML, XML & More

Generate code

JSON to TypeScript

JSON to Java, Kotlin and C#JSON to PHP Classes

JSON to Protobuf ObjGen

Encode & convert

Text & writing

Web & design

Dev & ops

Security

Generate & media

Calculators & reference

English

Changelog Attributions

© 2026 Daniel Chen

PrismKit

JSON

JSON Patch

JSON Patch

Runs in your browserLocal

Apply an RFC 6902 JSON Patch to a document, or generate the patch that turns one document into another.

JSON Flatten

Flatten nested JSON into dot and bracket paths, or unflatten it back.

JSON Merge Patch

Apply or generate an RFC 7396 merge patch, or deep-merge several JSON documents with a choice of array strategy.