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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 to TOON

JSON to TOON

Runs in your browserLocal

Convert JSON to TOON, the compact Token-Oriented Object Notation for LLM prompts, and back, with a size comparison.

MessagePack Converter

Encode JSON as MessagePack bytes in hex or Base64, or decode a .msgpack file back into JSON.

JSON to CSV, YAML, XML & More

Convert JSON to CSV, TSV, YAML, XML, Markdown or HTML tables and SQL INSERT statements, flattening nested objects.