Bless is a binary (hex) editor, a program that enables you to edit files as a sequence of bytes.
It uses the Gtk# bindings for the GTK+ toolkit.
Bless is free and open source software.
Key Features
- Efficient editing of large data files.
- Raw disk editing.
- Multilevel undo – redo operations. There’s unlimited undo.
- Keep undo history after saving:
- Always.
- What fits in main memory.
- Never.
- Customizable data views.
- Fast data rendering on screen.
- Multiple tabs.
- Fast find and replace operations.
- Conversion table.
- Advanced copy/paste capabilities.
- Multi-threaded search and save operations.
- Goto offset.
- Export to text and HTML (other formats are available with plugins). You can export the whole file, the current selection, or a specified range.
- Extensibility with plugins. There’s an included plugin: PatternMatchHighlight which highlights matches of selection pattern.
- Cross-platform support.
Website: github.com/afrantzis/bless
Support:
Developer: Alexandros Frantzis and contributors
License: GNU General Public License v2.0

Bless is written in C#. Learn C# with our recommended free books and free tutorials.
Related Software
| GUI Hex Editors | |
|---|---|
| ImHex | Hex editor with many advanced features |
| Hexerator | Hex editor focused on binary file exploration and aiding pattern recognition |
| rehex | Hex editor for reverse engineering |
| Okteta | Simple KDE editor for the raw data of files with good range of features |
| GHex | Hex editor for GNOME |
| wxHexEditor | Hex and disk editor which uses the wxWidgets GUI libraries |
| Fhex | Aims to be a lightweight yet full-featured hex editor. |
| wxMEdit | Improved version of the discontinued MadEdit |
| HexWalk | Hex editor, viewer, and analyzer |
| BinEd | Editor for binary data (hex viewer/editor) written in Jav |
| Bless | Gtk# hex editor |
| Chirurgien | Helps understand and manipulate file formats |
Read our verdict in the software roundup.
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