ExcelTool.io

About ExcelTool.io

ExcelTool.io is a free suite of online tools for working with Excel files. Our mission is to make spreadsheet tasks simple, fast, and accessible to everyone.

Our Mission

We believe that essential productivity tools should be free and accessible. ExcelTool.io provides powerful Excel utilities without requiring expensive software subscriptions or downloads. Whether you need to view a spreadsheet, convert formats, or build complex formulas, our tools are here to help.

Privacy First

Your data never leaves your browser. Unlike other online tools that upload your files to remote servers, ExcelTool.io processes everything locally using modern web technologies. This means:

  • Your files are never uploaded to any server
  • We don't store or have access to your data
  • Your sensitive information stays completely private
  • You can use our tools even while offline (after initial load)

Our Tools

ExcelTool.io offers a comprehensive suite of Excel utilities:

Viewers

  • Excel Viewer - View .xlsx, .xls, .xlsm, and .xlsb files
  • XLSX Viewer - Dedicated viewer for modern Excel files
  • XLS Viewer - Support for legacy Excel 97-2003 files

Converters

  • JSON to Excel - Convert JSON data to spreadsheets
  • Excel to JSON - Export spreadsheet data as JSON
  • Excel to PDF - Create PDF documents from spreadsheets
  • XLS to XLSX - Convert legacy files to modern format

Utilities

  • Excel Compare - Diff two spreadsheets side by side
  • Formula Generator - Build Excel formulas easily
  • VLOOKUP Generator - Create VLOOKUP formulas step by step

Technology

ExcelTool.io is built with modern web technologies including Next.js, React, and TypeScript. We use the SheetJS library for Excel file processing, ensuring broad compatibility with all Excel file formats.

Free Forever

All tools on ExcelTool.io are completely free to use. There are no premium tiers, no hidden fees, and no signup required. We believe that basic productivity tools should be accessible to everyone.

Contact

Have questions, suggestions, or feedback? We'd love to hear from you. ExcelTool.io is constantly evolving, and your input helps us improve.