JSON toolkit

The JSON converter.

Generate types for 9 languages, convert between JSON, YAML, CSV and XML, and diff, validate or repair — all in one native app that runs locally on files of any size. Nothing uploaded.

Download free · macOS, Windows, Linux Large JSON viewer →

Local · No upload · No size limit on opening · Apache-2.0

Generate types from JSON

JSON to TypeScript Idiomatic TypeScript types, inferred. JSON to Go Idiomatic Go types, inferred. JSON to Rust Idiomatic Rust types, inferred. JSON to Python Idiomatic Python types, inferred. JSON to Zod Idiomatic Zod types, inferred.

Convert formats

JSON to YAML Convert and export, both directions. JSON to CSV Convert and export, both directions. JSON to XML Convert and export, both directions.

Validate, compare & repair

JSON diff Compare two documents and see what changed. JSON validator Validate against a JSON Schema, live. JSON repair Fix malformed JSON in one pass.

Frequently asked questions

Is Pandia an online JSON converter?

No — it’s a native desktop app, which is the point: your data is converted locally and never uploaded, and there’s no size limit on the file you open.

What can it convert JSON to?

Type definitions for 9 languages (TypeScript, Rust, Go, Kotlin, Python, PHP, Java, Zod and JSON Schema), and data formats including YAML, CSV and XML. It also diffs, validates and repairs JSON.

See also: large JSON viewer · offline JSON editor · type generation docs.

Get Pandia

Stop fighting your JSON.

Download the native app, open your biggest file, and get to work. Free, offline, and open source.

Download for macOS · Free View source
Download for Windows Download for Linux v1.0.0 · Apache-2.0