macOS
Homebrewverified · 100%
brew install udis86local Homebrew formula metadata
MacPortsverified · 94%
sudo port install udis86MacPorts ports tree · devel/udis86/Portfile · source: api.github.com
brew / rank 12795
Install udis86 with Homebrew, dnf, MacPorts, Nix, apt
Minimalistic disassembler library for x86. Version 1.7.2 via Homebrew; verified 2026-07-10. Also installable with nix: nix profile install nixpkgs#udis86.
install
Additional install commands
Linux
Fedora dnfverified · 92%
sudo dnf install udis86Fedora Rawhide package metadata · udis86 · source: dl.fedoraproject.org
Nixverified · 92%
nix profile install nixpkgs#udis86nixpkgs package indexes · pkgs/by-name/ud/udis86/package.nix · source: api.github.com
Debian aptverified · 92%
sudo apt install udcliDebian stable package indexes · udcli · source: deb.debian.org
overview
Package summary
Minimalistic disassembler library for x86
Project links
Commands and aliases
- udcli
history
Project history and usage
Udis86 is a disassembler library and command-line utility for x86 and x86-64 instruction streams. The project provides libudis86 for embedding and udcli for quick terminal disassembly.
Project history
The SourceForge project describes Udis86 as an easy-to-use minimalistic disassembler library intended to aid software projects that perform binary code analysis. Its GitHub repository was created in March 2012 and is the official source-control home referenced by package metadata.
The README describes a C library that decodes raw binary data and exposes disassembled instructions through a structured API. It also documents support for Intel and AT&T assembly syntax, file, memory-buffer, and callback input, re-entrant operation, and no dynamic memory allocation.
Adoption history
Udis86 was adopted as both a library dependency and a small CLI utility. The CHANGES file acknowledges contributors from reverse-engineering and tooling communities, including radare, and the input package metadata shows packaging in Homebrew, Debian, Fedora, MacPorts, and Nix.
How it is used
Library users embed libudis86 to decode x86 or x86-64 machine code in binary-analysis tools. CLI users pipe bytes or files through udcli for fast inspection, selecting bitness and output syntax from the terminal.
Why package nerds care
For package nerds, Udis86 is a compact C disassembly dependency with a useful single executable. It sits in the reverse-engineering corner of package collections: small enough to install casually, but important when a build, debugger, or binary-analysis tool wants a stable x86 decoder.
Timeline
- 2012: Official GitHub repository created.
- 2013: v1.7 tag created.
- 2013: v1.7.2 tag created with input handling cleanup, API fixes, and documentation refinements.
- Current packaging: source_facts lists Homebrew, Debian, Fedora, MacPorts, and Nix packages.
Related projects
- The CHANGES file acknowledges radare among contributors for v1.7.2-era work.
- Udis86 occupies the same broad binary-analysis niche as other disassemblers, but the official sources document this project specifically through libudis86 and udcli.
Sources
security posture
Risk level: green
library-like package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- library-like package without higher-risk signals
Signals
- metadata:library-like
Install behavior
- No Homebrew bottle metadata was recorded.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
udcli | executable | indexed executable | Discovered from the local executable index. |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-08-03
manager version1.7.2
manager updated2026-07-10
local dataunknown
upstreamnot available
latest detectednot detected
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:udis86 |
|---|---|
| Version | 1.7.2 |
| Package manager | Homebrew |
| Homepage | https://sourceforge.net/projects/udis86/ |
| Last updated | 2026-07-10T10:41:25-04:00 |
| Pulse | updated |
| Bottle | not recorded |
| Service | none declared |
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Nix95%
udis86
nix profile install nixpkgs#udis86- normalized package name match
- Matched by: Udis86
dnf95%
udis86 1.7.2-31.56ff6c8.fc45
A disassembler library for x86 and x86-64
sudo dnf install udis86- License: BSD-2-Clause
- Category: Unspecified
- Architecture: i686
- Source Package: udis86
- 2 dependencies
- 2 provides
- normalized package name match
- Matched by: Udis86
dnf95%
udis86-devel 1.7.2-31.56ff6c8.fc45
Development files for udis86
sudo dnf install udis86-devel- License: BSD-2-Clause
- Category: Unspecified
- Architecture: i686
- Source Package: udis86
- 2 dependencies
- 1 provides
- normalized package name match
- Matched by: Udis86
MacPorts95%
udis86
sudo port install udis86- normalized package name match
- Matched by: Udis86
Debian apt92%
udcli 0+20221013-1.1
Disassembler for x86 and x86-64 class ISA (cli)
https://github.com/canihavesomecoffee/udis86
sudo apt install udcli- Section: misc
- Architecture: amd64
- Source Package: libudis86
- 2 dependencies
- installed executable or alias match
- Matched by: Udcli
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- pkg.so package database
- pkgdb category and tag curation