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About DevTools Pro

Our Mission

DevTools Pro was built with a simple goal: provide developers with fast, free, and private code formatting tools. No sign-ups, no data collection, no limitations. We believe every developer deserves access to professional-grade code formatting without barriers.

What We Offer

DevTools Pro is a comprehensive suite of client-side code formatting, validation, and minification tools supporting multiple programming languages:

  • JSON Formatter & Validator: Pretty-print, minify, and validate JSON with detailed error messages and line numbers.
  • SQL Beautifier: Format complex SQL queries with proper indentation and keyword highlighting.
  • HTML Formatter: Beautify HTML markup with correct nesting and indentation levels.
  • CSS Formatter: Clean up stylesheets with consistent formatting and structure.
  • XML Formatter: Format and validate XML documents with proper element indentation.

How It Works

Unlike many online formatters, everything happens in your browser. When you paste code and click Format, the processing is done by JavaScript running locally on your device. Your code never leaves your computer — ensuring complete privacy and security.

  • • JSON: Native JSON.parse + JSON.stringify
  • • HTML & CSS: js-beautify library (open-source)
  • • SQL: Custom built-in SQL formatter with keyword recognition
  • • XML: Custom DOM-based formatter with namespace support

Features

Format / Beautify

Prettify code with proper indentation and line breaks for improved readability.

Minify / Compress

Remove whitespace and unnecessary characters to reduce file size for production.

Validate / Check

Find syntax errors with detailed line-level error reporting.

File Upload & Drag-Drop

Load files directly from your computer with drag-and-drop support.

Keyboard Shortcuts

Ctrl + Enter — Format code

Ctrl + Shift + M — Minify code

Our Values

Privacy First

Your code never leaves your browser. Zero data collection, zero server processing.

Always Free

All core features are free forever, sustained through non-intrusive advertising.

Developer Focused

Built by developers, for developers. Fast, minimal, keyboard-friendly interface.

Open Standards

Uses open-source libraries and web standards for reliable, consistent results.

Part of ToolHub

DevTools Pro is part of the ToolHub family of free online tools:

  • YT Toolkit – YouTube thumbnail downloader & tag extractor
  • InvestCalc – Investment & compound interest calculator

Contact

Feedback, bugs, or feature requests? Email us at mmnnss8201@gmail.com.