Command-line tools: L

• labctl

  CLI tool for interacting with iximiuz labs and playgrounds

• ladybug

  Embedded graph database built for query speed and scalability

• lame

  High quality MPEG Audio Layer III (MP3) encoder

• lammps

  Molecular Dynamics Simulator

• langgraph-cli

  Command-line interface for deploying apps to the LangGraph platform

• languagetool

  Style and grammar checker

• lanraragi

  Web application for archival and reading of manga/doujinshi

• lapack

  Linear Algebra PACKage

• lastpass-cli

  LastPass command-line interface tool

• latexdiff

  Compare and mark up LaTeX file differences

• latexindent

  Add indentation to LaTeX files

• latexml

  LaTeX to XML/HTML/MathML Converter

• lazydocker

  Lazier way to manage everything docker

• lazygit

  Simple terminal UI for git commands

• lazyjournal

  TUI for logs from journalctl, file system, Docker, Podman and Kubernetes pods

• lazysql

  Cross-platform TUI database management tool

• lazyssh

  Terminal-based SSH manager

• lc0

  Open source neural network based chess engine

• lcdf-typetools

  Manipulate OpenType and multiple-master fonts

• lcov

  Graphical front-end for GCC's coverage testing tool (gcov)

• ldc

  Portable D programming language compiler

• ldcli

  CLI for managing LaunchDarkly feature flags

• ldid

  Lets you manipulate the signature block in a Mach-O binary

• ldid-procursus

  Put real or fake signatures in a Mach-O binary

• ldns

  DNS library written in C

• leaf-markdown-viewer

  Terminal Markdown previewer with a GUI-like experience

• ledger

  Command-line, double-entry accounting tool

• lefthook

  Fast and powerful Git hooks manager for any type of projects

• legit

  Command-line interface for Git, optimized for workflow simplicity

• lego

  Let's Encrypt client and ACME library

• leiningen

  Build tool for Clojure

• lemon

  LALR(1) parser generator like yacc or bison

• lensfun

  Remove defects from digital images

• leptonica

  Image processing and image analysis library

• lerna

  Tool for managing JavaScript projects with multiple packages

• less

  Pager program similar to more

• lesspipe

  Input filter for the pager less

• letta-code

  Memory-first coding agent

• leveldb

  Key-value storage library with ordered mapping

• lexicon

  Manipulate DNS records on various DNS providers in a standardized way

• lf

  Terminal file manager

• lfk

  Terminal user interface for navigating and managing Kubernetes clusters

• lftp

  Sophisticated file transfer program

• lhasa

  LHA implementation to decompress .lzh and .lzs archives

• libaacs

  Implements the Advanced Access Content System specification

• libadwaita

  Building blocks for modern adaptive GNOME applications

• libaec

  Adaptive Entropy Coding implementing Golomb-Rice algorithm

• libarchive

  Multi-format archive and compression library

• libass

  Subtitle renderer for the ASS/SSA subtitle format

• libassuan

  Assuan IPC Library

• libatomic_ops

  Implementations for atomic memory update operations

• libavif

  Library for encoding and decoding .avif files

• libb2

  Secure hashing function

• libbladerf

  USB 3.0 Superspeed Software Defined Radio Source

• libbluray

  Blu-Ray disc playback library for media players like VLC

• libcaca

  Convert pixel information into colored ASCII art

• libcbor

  CBOR protocol implementation for C and others

• libcdio

  Compact Disc Input and Control Library

• libcec

  Control devices with TV remote control and HDMI cabling

• libclc

  Implementation of the library requirements of the OpenCL C programming language

• libconfig

  Configuration file processing library

• libdap

  Framework for scientific data networking

• libde265

  Open h.265 video codec implementation

• libdeflate

  Heavily optimized DEFLATE/zlib/gzip compression and decompression

• libdmtx

  Data Matrix library

• libdvdcss

  Access DVDs as block devices without the decryption

• libedit

  BSD-style licensed readline alternative

• libelf

  ELF object file access library

• libepoxy

  Library for handling OpenGL function pointer management

• libev

  Asynchronous event library

• libevent

  Asynchronous event library

• libewf

  Library for support of the Expert Witness Compression Format

• libexif

  EXIF parsing library

• libfaketime

  Report faked system time to programs

• libffi

  Portable Foreign Function Interface library

• libfido2

  Provides library functionality for FIDO U2F & FIDO 2.0, including USB

• libftdi

  Library to talk to FTDI chips

• libgccjit

  JIT library for the GNU compiler collection

• libgcrypt

  Cryptographic library based on the code from GnuPG

• libgedit-amtk

  Actions, Menus and Toolbars Kit for GTK applications

• libgedit-gtksourceview

  Text editor widget for code editing

• libgedit-tepl

  Gedit Technology - Text editor product line

• libgeotiff

  Library and tools for dealing with GeoTIFF

• libgit2

  C library of Git core methods that is re-entrant and linkable

• libgpg-error

  Common error values for all GnuPG components

• libgphoto2

  Gphoto2 digital camera library

• libgsf

  I/O abstraction library for dealing with structured file formats

• libheif

  ISO/IEC 23008-12:2017 HEIF file format decoder and encoder

• libheif-plugins

  ISO/IEC 23008-12:2017 HEIF file format decoder and encoder

• libical

  Implementation of iCalendar protocols and data formats

• libiconv

  Conversion library

• libidn

  International domain name library

• libidn2

  International domain name library (IDNA2008, Punycode and TR46)

• libimagequant

  Palette quantization library extracted from pnquant2

• libimobiledevice

  Library to communicate with iOS devices natively

• libimobiledevice-glue

  Library with common system API code for libimobiledevice projects

• libiodbc

  Database connectivity layer based on ODBC. (alternative to unixodbc)

• libirecovery

  Library and utility to talk to iBoot/iBSS via USB

• libiscsi

  Client library and utilities for iscsi

• libjwt

  JSON Web Token C library

• libksba

  X.509 and CMS library

• liblinear

  Library for large linear classification

• liblo

  Lightweight Open Sound Control implementation

• liblqr

  C/C++ seam carving library

• libmagic

  Implementation of the file(1) command

• libmatio

  C library for reading and writing MATLAB MAT files

• libmaxminddb

  C library for the MaxMind DB file format

• libmediainfo

  Shared library for mediainfo

• libmemcached

  C and C++ client library to the memcached server

• libmicrohttpd

  Light HTTP/1.1 server library

• libmodbus

  Portable modbus library

• libmpc

  C library for the arithmetic of high precision complex numbers

• libmtp

  Implementation of Microsoft's Media Transfer Protocol (MTP)

• libnatpmp

  NAT port mapping protocol library

• libnfc

  Low level NFC SDK and Programmers API

• libnfs

  C client library for NFS

• libnghttp2

  HTTP/2 C Library

• libnghttp3

  HTTP/3 library written in C

• libngtcp2

  IETF QUIC protocol implementation

• libnice

  GLib ICE implementation

• libnice-gstreamer

  GStreamer Plugin for libnice

• libnotify

  Library that sends desktop notifications to a notification daemon

• libogg

  Ogg Bitstream Library

• libomp

  LLVM's OpenMP runtime library

• libopenmpt

  Software library to decode tracked music files

• liboqs

  Library for quantum-safe cryptography

• libosinfo

  Operating System information database

• libosip

  Implementation of the eXosip2 stack

• libp11

  PKCS#11 wrapper library in C

• libpaho-mqtt

  Eclipse Paho C client library for MQTT

• libpcap

  Portable library for network traffic capture

• libpeas

  GObject plugin library

• libphonenumber

  C++ Phone Number library by Google

• libplacebo

  Reusable library for GPU-accelerated image/video processing primitives

• libplist

  Library for Apple Binary- and XML-Property Lists

• libpng

  Library for manipulating PNG images

• libpostal

  Library for parsing/normalizing street addresses around the world

• libpq

  Postgres C API library

• libpq@16

  Postgres C API library

• libpq@17

  Postgres C API library

• libpqxx

  C++ connector for PostgreSQL

• libproxy

  Library that provides automatic proxy configuration management

• libpsl

  C library for the Public Suffix List

• libpst

  Utilities for the PST file format

• libpulsar

  Apache Pulsar C++ library

• libqalculate

  Library for Qalculate! program

• libraqm

  Library for complex text layout

• libraw

  Library for reading RAW files from digital photo cameras

• librdkafka

  Apache Kafka C/C++ library

• libre

  Toolkit library for asynchronous network I/O with protocol stacks

• librealsense

  Intel RealSense D400 series and SR300 capture

• libredwg

  DWG utilities

• librespot

  Open Source Spotify client library

• libressl

  Version of the SSL/TLS protocol forked from OpenSSL

• librime

  Rime Input Method Engine

• librist

  Reliable Internet Stream Transport (RIST)

• librsvg

  Library to render SVG files using Cairo

• librtlsdr

  Use Realtek DVB-T dongles as a cheap SDR

• libsamplerate

  Library for sample rate conversion of audio data

• libsecret

  Library for storing/retrieving passwords and other secrets

• libsigc++

  Callback framework for C++

• libsigrok

  Drivers for logic analyzers and other supported devices

• libsixel

  SIXEL encoder/decoder implementation

• libslirp

  General purpose TCP-IP emulator

• libsndfile

  C library for files containing sampled sound

• libsodium

  NaCl networking and cryptography library

• libsolv

  Library for solving packages and reading repositories

• libsoup

  HTTP client/server library for GNOME

• libsoxr

  High quality, one-dimensional sample-rate conversion library

• libspatialite

  Adds spatial SQL capabilities to SQLite

• libssh

  C library SSHv1/SSHv2 client and server protocols

• libssh2

  C library implementing the SSH2 protocol

• libtasn1

  ASN.1 structure parser library

• libtensorflow

  C interface for Google's OS library for Machine Intelligence

• libthai

  Thai language support library

• libtiff

  TIFF library and utilities

• libtirpc

  Port of Sun's Transport-Independent RPC library to Linux

• libtommath

  C library for number theoretic multiple-precision integers

• libtool

  Generic library support script

• libtorrent-rakshasa

  BitTorrent library with a focus on high performance

• libtorrent-rasterbar

  C++ bittorrent library with Python bindings

• libultrahdr

  Reference codec for the Ultra HDR format

• libunibreak

  Implementation of the Unicode line- and word-breaking algorithms

• libunistring

  C string library for manipulating Unicode strings

• libupnp

  Portable UPnP development kit

• libusb

  Library for USB device access

• libusb-compat

  Library for USB device access

• libusbmuxd

  USB multiplexor library for iOS devices

• libuv

  Multi-platform support library with a focus on asynchronous I/O

• libvidstab

  Transcode video stabilization plugin

• libvirt

  C virtualization API

• libvirt-glib

  Libvirt API for glib-based programs

• libvirt-python

  Libvirt virtualization API python binding

• libvmaf

  Perceptual video quality assessment based on multi-method fusion

• libvncserver

  VNC server and client libraries

• libvorbis

  Vorbis general audio compression codec

• libvpx

  VP8/VP9 video codec

• libvterm

  C99 library which implements a VT220 or xterm terminal emulator

• libwebsockets

  C websockets server library

• libwmf

  Library for converting WMF (Window Metafile Format) files

• libx11

  X.Org: Core X11 protocol client library

• libxau

  X.Org: A Sample Authorization Protocol for X

• libxc

  Library of exchange and correlation functionals for codes

• libxcb

  X.Org: Interface to the X Window System protocol

• libxcomposite

  X.Org: Client library for the Composite extension

• libxcrypt

  Extended crypt library for descrypt, md5crypt, bcrypt, and others

• libxdamage

  X.Org: X Damage Extension library

• libxdmcp

  X.Org: X Display Manager Control Protocol library

• libxext

  X.Org: Library for common extensions to the X11 protocol

• libxfixes

  X.Org: Header files for the XFIXES extension

• libxft

  X.Org: X FreeType library

• libxi

  X.Org: Library for the X Input Extension

• libxinerama

  X.Org: API for Xinerama extension to X11 Protocol

• libxkbcommon

  Keyboard handling library

• libxml2

  GNOME XML library

• libxmlb

  Library for querying compressed XML metadata

• libxmlsec1

  XML security library

• libxmp

  C library for playback of module music (MOD, S3M, IT, etc)

• libxmu

  X.Org: X miscellaneous utility routines library

• libxpm

  X.Org: X Pixmap (XPM) image file format library

• libxrandr

  X.Org: X Resize, Rotate and Reflection extension library

• libxrender

  X.Org: Library for the Render Extension to the X11 protocol

• libxslt

  C XSLT library for GNOME

• libyaml

  YAML Parser

• libzim

  Reference implementation of the ZIM specification

• libzip

  C library for reading, creating, and modifying zip archives

• license-eye

  Tool to check and fix license headers and resolve dependency licenses

• licensed

  Cache and verify the licenses of dependencies

• licensefinder

  Find licenses for your project's dependencies

• licenseplist

  License list generator of all your dependencies for iOS applications

• lightgbm

  Fast, distributed, high performance gradient boosting framework

• lighthouse

  Rust Ethereum 2.0 Client

• lighttpd

  Small memory footprint, flexible web-server

• likec4

  Architecture modeling tool with live diagrams from code

• lilv

  C library to use LV2 plugins

• lilypond

  Music engraving system

• lima

  Linux virtual machines

• lima-additional-guestagents

  Additional guest agents for Lima

• limine

  Modern, secure, portable, multiprotocol bootloader and boot manager

• linecast

  Weather, tides, the sun, the moon, and maps, drawn for the terminal

• linkerd

  Command-line utility to interact with linkerd

• links

  Lynx-like WWW browser that supports tables, menus, etc.

• linode-cli

  CLI for the Linode API

• linux-headers@4.4

  Header files of the Linux kernel

• linux-headers@5.15

  Header files of the Linux kernel

• liquibase

  Library for database change tracking

• liquid-dsp

  Digital signal processing library for software-defined radios

• liquidctl

  Cross-platform tool and drivers for liquid coolers and other devices

• lisette

  Language inspired by Rust that compiles to Go

• lit

  Portable tool for LLVM- and Clang-style test suites

• litecli

  CLI for SQLite Databases with auto-completion and syntax highlighting

• little-cms2

  Color management engine supporting ICC profiles

• livekit

  Scalable, high-performance WebRTC server

• livekit-cli

  Command-line interface to LiveKit

• lizard-analyzer

  Extensible Cyclomatic Complexity Analyzer

• lla

  High-performance, extensible alternative to ls

• llama.cpp

  LLM inference in C/C++

• lld

  LLVM Project Linker

• lld@19

  LLVM Project Linker

• lld@20

  LLVM Project Linker

• lldb

  Next generation, high-performance debugger

• lldpd

  Implementation of IEEE 802.1ab (LLDP)

• llhttp

  Port of http_parser to llparse

• llm

  Access large language models from the command-line

• llmfit

  Find what models run on your hardware

• llvm

  Next-gen compiler infrastructure

• llvm@15

  Next-gen compiler infrastructure

• llvm@16

  Next-gen compiler infrastructure

• llvm@18

  Next-gen compiler infrastructure

• llvm@19

  Next-gen compiler infrastructure

• llvm@20

  Next-gen compiler infrastructure

• llvm@21

  Next-gen compiler infrastructure

• llvm@22

  Next-gen compiler infrastructure

• lm-sensors

  Tools for monitoring the temperatures, voltages, and fans

• lmdb

  Lightning memory-mapped database: key-value data store

• lmod

  Lua-based environment modules system to modify PATH variable

• lnav

  Curses-based tool for viewing and analyzing log files

• loc

  Count lines of code quickly

• localai

  OpenAI alternative

• localtunnel

  Exposes your localhost to the world for easy testing and sharing

• locust

  Scalable user load testing tool written in Python

• log4cxx

  Library of C++ classes for flexible logging

• logcli

  Run LogQL queries against a Loki server

• logdy

  Web based real-time log viewer

• logrotate

  Rotates, compresses, and mails system logs

• logstash

  Tool for managing events and logs

• loki

  Horizontally-scalable, highly-available log aggregation system

• lolcat

  Rainbows and unicorns in your console!

• lolcrab

  Make your console colorful, with OpenSimplex noise

• lowdown

  Simple markdown translator

• lpeg

  Parsing Expression Grammars For Lua

• lrzsz

  Tools for zmodem/xmodem/ymodem file transfer

• lsd

  Clone of ls with colorful output, file type icons, and more

• lsof

  Utility to list open files

• lsusb

  List USB devices, just like the Linux lsusb command

• lua

  Powerful, lightweight programming language

• lua-language-server

  Language Server for the Lua language

• luacheck

  Tool for linting and static analysis of Lua code

• luajit

  Just-In-Time Compiler (JIT) for the Lua programming language

• luajit-openresty

  OpenResty's Branch of LuaJIT 2

• luarocks

  Package manager for the Lua programming language

• luau

  Fast, safe, gradually typed embeddable scripting language derived from Lua

• lue-reader

  Terminal eBook reader with text-to-speech and multi-format support

• lume

  Create and manage Apple Silicon-native virtual machines

• lune

  Standalone Luau script runtime

• luv

  Bare libuv bindings for lua

• luvit

  Asynchronous I/O for Lua

• lux

  Fast and simple video downloader

• lv

  Powerful multi-lingual file viewer/grep

• lxc

  CLI client for interacting with LXD

• lychee

  Fast, async, resource-friendly link checker

• lynis

  Security and system auditing tool to harden systems

• lynx

  Text-based web browser

• lz4

  Extremely Fast Compression algorithm

• lzfse

  Apple LZFSE compression library and command-line tool

• lzip

  LZMA-based compression program similar to gzip or bzip2

• lzlib

  Data compression library

• lzo

  Real-time data compression library

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