vmt/udis86

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1080 stars · 316 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Udis86 is a C library (libudis86) for disassembling x86 and x86-64 machine code, decoding raw binary streams into structured instructions with Intel or AT&T syntax output. It also ships udcli, a small command-line tool for quick disassembly from files, memory buffers, or stdin.

Use cases

• disassemble x86-64 machine code into assembly
• decode raw binary instruction streams in C
• analyze binary code for reverse engineering
• disassemble shellcode or memory buffers
• convert hex bytes to assembly from the command line
• build binary analysis or debugging tools

When to choose

• you need a lightweight, re-entrant C library for x86/x86-64 disassembly
• you want both Intel and AT&T syntax output
• you need no dynamic memory allocation and a documented API
• you want a quick CLI disassembler for hex dumps

When to avoid

• you need disassembly for non-x86 architectures like ARM or RISC-V
• you need actively maintained support for the newest AVX-512 or APX instruction extensions
• you want a higher-level analysis framework like a full decompiler

Facets

library · maturity maintenance

parser developer-tools reverse-engineering developer-tools security operating-systems windows cross-platform cli c disassembler x86 x86-64 binary-analysis reverse-engineering assembly libudis86 udcli linux macos

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