About JSON Tools by KearAI

Last updated: March 10, 2026

Our Mission

JSON Tools by KearAI provides developers, data analysts, and technical professionals with a comprehensive, free online JSON toolkit. We believe essential developer tools should be accessible to everyone without cost, registration, or limitations.

What We Offer

Our platform delivers 15+ professional JSON tools through a clean, two-pane workspace with real-time validation, syntax highlighting, and an integrated AI assistant. All processing happens directly in your browser for maximum speed and privacy.

Core Tools

  • Format & Beautify — pretty-print JSON with configurable indentation (2 spaces, 4 spaces, or tabs).
  • Minify — compress JSON by removing all whitespace.
  • Validate — real-time JSON syntax validation with detailed error messages.
  • Sort Keys — recursively sort all object keys alphabetically.
  • Repair — fix common JSON issues: trailing commas, comments, unquoted keys, single quotes.

Conversion Tools

  • JSON ↔ CSV — bidirectional conversion between JSON and CSV.
  • JSON ↔ XML — bidirectional conversion between JSON and XML.
  • JSON ↔ YAML — bidirectional conversion between JSON and YAML.

Utility Tools

  • Escape / Unescape — convert between raw text and JSON-escaped strings.
  • Base64 Encode / Decode — encode and decode Base64 data.
  • Compare / Diff — structural comparison of two JSON documents.
  • Tree View — interactive tree visualization with type badges and JSONPath copying.

AI Assistant

  • Powered by a third-party AI gateway and upstream models, the AI assistant can explain JSON structures, fix errors, generate TypeScript interfaces, create JSON Schema, and more.

Key Features

  • 100% client-side processing — your data never leaves your browser (except when using the AI assistant).
  • No registration required — use all tools instantly without creating an account.
  • 51 languages supported — full internationalization framework with RTL support.
  • 5 color themes — Dark, Light, Monokai, Dracula, and Nord.
  • Keyboard shortcuts — professional shortcuts for all major operations.
  • Mobile-friendly — fully responsive design with hamburger menu on mobile devices.

Contact Us

Have questions, feedback, or suggestions? We would love to hear from you.