Smart JSON Suite

Format, validate, query, diff, and convert JSON to TypeScript / Go structs

Request a feature or report a bug: locache.download@gmail.com

About Smart JSON Suite

Zero-knowledge JSON tool. Format messy JSON, visualize interactive syntax trees, generate TypeScript interfaces & Go structs without uploading your data.

How to use

  1. 1
    Paste JSON: Paste your raw JSON text or drag-and-drop a .json file.
  2. 2
    Format & Inspect: Locache auto-validates and formats with syntax highlighting.
  3. 3
    Generate Types: Select TypeScript or Go to immediately obtain accurate type definitions.

FAQ

Does my JSON ever leave my browser or machine?

Never. Locache executes 100% locally in your client environment. No network requests are made.

Can it handle large JSON payloads over 50MB?

Yes. Locache uses streaming Web Workers and virtualized rendering to handle multi-megabyte payloads smoothly without freezing.

Related tools