[babas]

It may not be ideal to praise commercial software in a GNU software thread, but I really enjoy using 010 Editor. It's one of the few programs I pay for. Its C-like template syntax (looks similar to GNU Poke syntax) makes reverse engineering binary formats easy and fun!

[colejohnson66]

Check out ImHex! It's a FOSS alternative to 010 Editor.

[nequo]

What are the pros and cons of 010 Editor compared with GNU poke?