Dataescher HexEditor

Dataescher HexEditor is a high-performance hex and binary file editor for Windows, designed for firmware and embedded developers who work with large, sparse, and format-specific data. It combines an intuitive graphical interface with a powerful internal memory model that scales well beyond what traditional hex editors can handle.

At first glance, HexEditor may look similar to traditional hex editors that have existed for decades. The difference lies in its architecture. Rather than treating files as a flat binary stream, Dataescher HexEditor models data as a collection of discrete memory regions. This approach makes navigation, editing, and analysis of ASCII-based HEX files dramatically more efficient.

As a result, HexEditor can open files that other editors struggle with or fail to parse entirely. For example, this example file contains randomly ordered, discontinuous memory regions spanning a large address range. While some editors crash or take minutes to load it, Dataescher HexEditor opens and saves it reliably and quickly.

The user interface is designed for rapid interaction with large data sets. An adaptive scroll bar and memory-region overview panel provide precise control and visibility, allowing you to jump directly between memory segments without losing context.

Editor capabilities

A comprehensive toolset for inspecting, modifying, and validating binary and HEX-encoded data.

• Direct in-place data editing within the hex view
• Comprehensive undo and redo history
• Copy, cut, and paste (text or hexadecimal)
• Delete, crop, fill, invert, and randomize data regions
• Text and hexadecimal search and replace
• CRC computation over arbitrary memory ranges
• Customizable color themes

Performance & memory model

• Optimized loading and parsing for large HEX files
• Detailed error reporting (including checksum validation)
• Efficient handling of sparse and non-contiguous address spaces
• Configurable data size, address width, row length, and alignment
• File size support:
  • 32-bit: up to 1 GiB file size
  • 64-bit: up to 4 GiB of data

Supported file formats

• Binary (*.bin, *.dat)
• ELF (*.elf) (loading only)
• Intel HEX (*.hex, *.ihex)
• Motorola HEX (*.s19, *.s28, *.s37, *.srec, *.mot)
• Tektronix HEX (*.tek)
• TI-Text (*.txt)
• Actel HEX (*.ahex, *.ahx)
• C Array output (*.c, *.cpp, *.h) (saving only)