Free online tools to generate, calculate, convert, format, transform, and de/en-code.
 

Hex Editor

View and edit binary files in hexadecimal format. Upload any file to see its hex dump and ASCII representation.


Upload File

Privacy: All processing happens in your browser. No files are uploaded to any server.

Features

  • Hex View: Display file contents in hexadecimal format
  • ASCII View: See printable ASCII characters alongside hex values
  • Edit Bytes: Enable editing mode and click any byte to modify its value
  • Track Changes: Modified bytes are highlighted and counted
  • Search: Find hex patterns within the file
  • Jump to Offset: Navigate to specific addresses
  • File Info: View file name, size, modifications, and current selection
  • Undo: Revert all changes to original file
  • Download: Save the modified file

About Hex Editors

A hex editor allows you to view and edit the raw binary contents of any file. Each byte is displayed in hexadecimal (base-16) format, making it easy to inspect file structures, headers, and data.

Common Uses:
  • File Analysis: Examine file formats and structures
  • Data Recovery: Recover corrupted files by examining raw data
  • Reverse Engineering: Analyze binary formats and protocols
  • Security Research: Inspect executables and malware samples

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