a file editor/viewer/analyzer for executables
Editor: HT is a file editor/Viewer/analyzer for executables. The goal is to combine the low-level functionality of a debugger and the usability of IDEs. We plan to implement all (Hex-)editing features and support of the most important file formats.

HT is distributed under the terms of the GPL.
New C++ data structures (e.g. AVL trees). Completed.
UI system rewritten. Almost completed.
New file system methods. New and very powerful FileModificator. Can do undoable read, write, insert(!), delete(!), extend and Truncate operations on huge files (up to 2^64 in size if OS supports this) with very low memory consumption, keeping only the required areas in memory. Ideal for CD images, hard disks, etc... Completed.
Completely rewritten program analyser. Already worked on.
An integrated debugger. HT 2.0 as a front-end to a real debugger (e.g. GDB). Already worked on.
SD: structure descriptions. An XML format, accurately describing binary structures, machine data types and byte-order. Very flexible and not limited to uses in HT. Worked on.
you can free download HT Editor 2.0.15 now.