Q22 is a cross-platform binary file editor and the successor to Catch22 HexEdit. It retains the original application’s direct binary-editing model while offering a modern interface built with Qt 6.
The software combines hexadecimal editing with file-structure inspection and disassembly tools. It supports Linux and Windows.
This is free and open source software.
Key Features
- Open and edit binary files, including large files.
- Cut, copy, paste, insert and delete data.
- Undo and redo editing operations.
- Display data in hexadecimal, decimal, octal, binary and text forms.
- Group data as 8-bit, 16-bit, 32-bit or 64-bit values.
- Search file contents and jump directly to offsets.
- Inspect files using C-style structure definitions.
- Built-in structure support for PE and ELF files.
- Expand headers, sections, imports, exports, symbols and related tables.
- Create custom structure definitions using the Strata language.
- Disassemble x86, x86-64, ARM, Thumb and AArch64 machine code.
- Automatically detect PE and ELF entry points.
- Browse discovered functions and move between disassembly and binary data.
- Add persistent bookmarks, annotations and highlights.
- Import and export Base64, UUEncode, Intel HEX and Motorola S-record data.
- Copy and paste data as text, raw data, C, C++, assembler or HTML.
- Calculate checksums and extract strings from files.
- Light, dark and system themes with custom palette support.
Website: github.com/strobejb/q22
Support:
Developer: James Brown
License: GPL-3.0-or-later
Q22 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 |
| Q22 | Coss-platform binary file editor |
| Bless | Gtk# hex editor |
| Chirurgien | Helps understand and manipulate file formats |
Read our verdict in the software roundup.
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