Dualis Tools - 450+ Free Online Developer, PDF & Utility Tools

Access 450+ free online tools for PDF editing, image compression, developer utilities, calculators, text formatting, finance, and unit converters. 100% private & client-side.

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Featured Free Online Tools

  • Merge PDF - Combine PDF files online for free
  • Compress Image - Reduce JPG, PNG, and WebP file size
  • Word Counter - Count words and characters online
  • JSON Formatter & Validator - Format and fix JSON
  • Password Generator - Create random secure passwords
  • EMI Calculator - Calculate home & loan EMIs
  • QR Code Generator - Create custom QR codes free