DevJSON - Advanced JSON & XML Formatter

About

DevJSON is the cleanest, fastest JSON and XML viewer built for developers who value simplicity and speed. No clutter. No tracking. Just pure productivity.

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✦ CORE FEATURES
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🔷 BEAUTIFY
Instantly format messy, compressed, or single-line JSON and XML into clean, readable, properly indented output. Syntax highlighting makes keys, values, strings, and types easy to distinguish at a glance.

🔷 MINIFY
Compress any JSON or XML into a compact single-line format — perfect for APIs, configs, and production payloads.

🔷 VALIDATE
Know instantly if your data is valid. DevJSON shows precise, human-readable error messages with line and column numbers, so you can locate and fix problems fast.
  Example: "Invalid JSON at line 14, column 28"

🔷 TREE VIEW
Explore deeply nested JSON and XML visually. Expand and collapse objects, arrays, and XML elements with a single click. Array indexes are clearly shown as [0], [1], [2]. Perfect for understanding unfamiliar data structures quickly.

🔷 XML SUPPORT
Full XML support alongside JSON — beautify, minify, validate, and explore XML with syntax highlighting for tags, attributes, and values.

🔷 COPY PATH / COPY XPATH
Hover over any node in Tree View and copy its exact path with one click.
  JSON path example: root.users[0].profile.username
  XML XPath example: /users/user[1]/profile/name
No more manually tracing nested structures.

🔷 SEARCH
Search across keys, values, tags, and attributes in both Code View and Tree View. Matching results are highlighted and you can navigate through them with Next/Previous controls or keyboard shortcuts.

🔷 LIGHT & DARK MODE
Switch between a polished dark theme (easy on eyes during long sessions) and a clean light theme. Your preference is saved automatically.

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⌨️ KEYBOARD SHORTCUTS
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  Ctrl/Cmd + B → Beautify
  Ctrl/Cmd + M → Minify
  Ctrl/Cmd + F → Search
  Ctrl/Cmd + T → Toggle Tree View

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🔒 PRIVACY FIRST
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DevJSON requires zero permissions. Your data never leaves your browser — everything is processed locally, in-memory, with no servers, no analytics, no tracking, and no accounts required. What you paste stays yours.

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⚡ LIGHTWEIGHT BY DESIGN
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Built with vanilla JavaScript — no heavy frameworks, no runtime dependencies. Loads instantly and stays out of your way. The tool feels like a natural extension of your DevTools workflow.

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👨‍💻 BUILT FOR DEVELOPERS
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Whether you're debugging API responses, exploring configuration files, reviewing data payloads, or working with XML feeds — DevJSON gives you a clean, distraction-free environment to get the job done.

Manifest V3 · Privacy-friendly · Zero permissions · Works offline