Convert JSON to anything
25+ free tools — type converters, schema generators, formatters, and more. No signup. No uploads. 100% private.
JSON Viewer tree
Explore JSON as a collapsible tree with live search and type annotations.
JSON Diff diff
Compare two JSON documents side-by-side. See added, removed, and changed keys.
Languages
Generate typed structs, classes, and interfaces from your JSON shape. 12Schemas & ORMs
Produce validation schemas, database models, and API definitions. 5Config & Data
Transform JSON into config formats and data interchange formats. 9⚡
Instant
Converts as you type
🔒
100% Private
Zero server calls
🎯
Type-Accurate
Nested types & unions
📲
Works Offline
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Frequently Asked Questions
Is this converter free to use?
Yes — completely free, no signup, no rate limits, and no usage tracking.
Is my JSON data private?
All conversion happens locally in your browser. No data is ever sent to a server — your JSON never leaves your machine.
Which languages are supported?
TypeScript, Rust, Go, C#, Python, Java, Kotlin, Swift, Dart, PHP, C, C++, Zod, JSON Schema, SQL, Mongoose, Protobuf, YAML, TOML, CSV, XML, INI, and more.
Does it handle nested objects and arrays?
Yes. The converter recursively generates named types for nested objects and correctly infers union types for mixed arrays.