JSON Viewer & Beautifier, Formatter - Lumina JSON

Tracking since Apr 16, 2026.

Changelog

• Apr 16, 2026
  description

  Professional JSON Formatter & Viewer for Developers
  
  When basic is not enough, we have the advanced JSON formatter for you.
  
  Transform raw JSON data into a clean, readable, and interactive format instantly. This extension is designed for developers who need a fast, reliable, and feature-rich JSON tool directly in their browser.
  
  ────────────────────────
  KEY FEATURES
  ────────────────────────
  
  • Beautiful Formatting
  Automatically formats JSON with syntax highlighting and perfect indentation.
  
  • Interactive Viewer
  Collapsible trees and nodes make navigating large JSON files effortless.
  
  • Raw/Parsed View
  Switch between raw and parsed views to see the JSON data in its original or formatted form.
  
  • Clickable URLs
  Click on URLs to open them in a new tab.
  
  • Syntax Highlighting
  Syntax highlighting makes reading JSON data easier.
  
  • Dark & Light Mode
  Switch between a sleek Dark Mode and a clean Light Mode to suit your preference.
  
  • Advanced Tools
  
  ▸ Real-time Search
  Filter and find specific keys or values instantly.
  
  ▸ Base64 Decoding
  Decode Base64 strings directly within the viewer.
  
  ▸ JWT Decoder
  Inspect JSON Web Tokens without leaving the page.
  
  ▸ Timestamp Converter
  Convert Unix timestamps to human-readable dates.
  
  ▸ Diff Tool
  Compare JSON objects side-by-side.
  
  ▸ Copy as TypeScript
  Generate TypeScript interfaces from your JSON automatically.
  
  • Privacy First
  All processing happens locally in your browser. No data is ever sent to any server.
  
  • Performance
  Handles large JSON files with ease.
  
  ────────────────────────
  WHY CHOOSE THIS JSON FORMATTER?
  ────────────────────────
  
  Unlike other formatters, we prioritize both aesthetics and functionality. Whether you are debugging an API, inspecting a config file, or just need to read some data, this tool provides the best experience with zero configuration required.
  
  Note: This extension might clash with other browser extensions that modify the DOM before it runs. If it does not seem to be working, try disabling other extensions. If it clashes with an extension you need, open an issue and I will try to find a solution.
  
  ────────────────────────
  Transparency & Monetization
  ────────────────────────
  
  To keep LuminaJSON - JSON Formatter free for everyone, we may display relevant, high-quality recommendations in a clearly marked "Sponsored/Ads" section within the sidebar. These may include links to trusted services like Amazon, NordVPN, or Hostinger, etc., or other useful extensions.
  
  Affiliate Disclosure: If you choose to purchase a service through these links, we may earn a small commission at no extra cost to you. This supports the ongoing development and maintenance of this project.
  
  Interaction is entirely optional.

  The Ultimate JSON Viewer, Formatter & Editor
  
  Powerful JSON viewer and JSON formatter to view JSON instantly. Beautify, edit, and explore JSON (JavaScript Object Notation) with advanced developer tools.
  
  Transform raw JSON into a clean, structured, and interactive format using this fast, reliable JSON beautifier and JSON prettier built for developers.
  
  ────────────────────────
  KEY FEATURES
  ────────────────────────
  
  • JSON Viewer & Formatter
  Easily view JSON data and format it with perfect indentation and syntax highlighting.
  
  • JSON Beautifier & Prettier
  Automatically clean and structure your data with a powerful JSON beautifier and JSON prettier.
  
  • Interactive JSON Editor
  Edit and explore JSON with a built-in JSON editor featuring collapsible trees and nodes.
  
  • Raw & Parsed View
  Switch between raw JSON and formatted views for better debugging and analysis.
  
  • Clickable URLs
  Open links directly from JSON data in a new tab.
  
  • Syntax Highlighting
  Improves readability of complex JSON object notation structures.
  
  • Dark & Light Mode
  Choose between sleek dark mode or clean light mode.
  
  • Advanced Developer Tools
  
  ▸ Real-time Search
  Quickly find keys and values in large JSON files.
  
  ▸ Base64 Decoder
  Decode Base64 strings instantly.
  
  ▸ JWT Decoder
  Inspect tokens without leaving the page.
  
  ▸ Timestamp Converter
  Convert Unix timestamps to readable dates.
  
  ▸ JSON Diff Tool
  Compare JSON objects side-by-side.
  
  ▸ TypeScript Generator
  Convert JSON into TypeScript interfaces automatically.
  
  • Privacy First
  All JSON processing happens locally in your browser—no data is sent externally.
  
  • High Performance
  Handles large JSON files smoothly without lag.
  
  ────────────────────────
  WHY CHOOSE THIS JSON VIEWER & FORMATTER?
  ────────────────────────
  
  This all-in-one JSON viewer, JSON formatter, and JSON editor is built for speed, usability, and performance. Whether you're debugging APIs, analyzing responses, or working with JSON object notation, this tool makes it effortless to view JSON, format data, and improve productivity.
  
  ────────────────────────
  Transparency & Monetization
  ────────────────────────
  
  To keep LuminaJSON free, we may show clearly labeled recommendations in a "Sponsored/Ads" section. These may include trusted services or useful tools.
  
  Affiliate Disclosure: We may earn a small commission at no extra cost to you. This helps support ongoing development.
  
  Interaction is completely optional

• Apr 16, 2026
  short_description

  The ultimate JSON Formatter & Viewer. Validate, Format, and Browse JSON with Dark Mode, Raw/Parsed views, and Developer Tools.

  JSON viewer & formatter to view JSON easily. JSON beautifier, JSON editor & JSON prettier for JSON (JavaScript Object Notation).

• Apr 16, 2026
  name

  LuminaJSON - JSON Formatter

  JSON Viewer & Beautifier, Formatter - Lumina JSON

Permissions & access

Permissions

storageunlimitedStorage

Host access

https://sponsors-luminajson.pages.dev/

Screenshots

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