REHex vs Synalyze It!
REHex
rehex.solemnwarning.netSynalyze It!
synalysis.netSide by side
| Figure | REHex | Synalyze It! |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Windows | Yes | — |
| macOS | Yes | Yes |
| Linux | Yes | — |
| Plans published | 1 | 2 |
| Spec score · Hex Editors | 7.8 (#12) | 7.5 (#17) |
| Large files | It supports files larger than 1 TB. | The editor supports files of unlimited size and accesses the visible portion instead of keeping files in memory. |
| Purpose | REHex is a cross-platform hex editor for reverse engineering and other uses. | Synalyze It! parses binary files and displays their structures, strings and numbers alongside a hex editor. |
| Scripting | It supports Lua scripting, and its functionality can be extended with Lua plugins. | The Pro version supports scripting, and the maker provides sample scripts for grammar, file and selected-byte operations. |
| Support | The project asks users to report bugs and suggest improvements by opening GitHub issues. | The support page directs users to a Q&A site and issue tracker, and says direct email inquiries usually receive an answer within a few hours. |
Plans
Synalyze It!
- Synalyze It! Pro (academic/private use)$44.99, paid once
- Synalyze It! Pro (commercial use)$99.99, paid once
In their own words
REHex
REHex is a free hex editor for reverse engineering and other work with binary data, available for Linux, macOS and Windows. It supports files larger than 1 TB, decodes integer and floating-point values, and displays machine-code disassembly inline. Users can compare whole files or selected regions side by side, map virtual addresses, and highlight or annotate byte ranges. Editing and analysis tools include bit editing, checksumming and bitmap visualization, along with common encodings such as ASCII, Unicode and ISO-8859-X. REHex imports and exports Intel HEX files. Binary Templates can annotate data automatically, while Lua scripting and plugins extend its functionality. Downloads include Windows installers and ZIP archives, a macOS DMG, and 32-bit and 64-bit Linux AppImages; packages are also documented for Debian, Ubuntu, Fedora, Red Hat Enterprise Linux, FreeBSD and openSUSE. The project identifies its license as GPL-2.0. The download page lists version 0.64.0, released on 2026-04-03, as the latest release. Bug reports and feature suggestions can be submitted as GitHub issues.
Synalyze It!
Synalyze It! has no write-up on Specifiction yet; its figures are above.