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All 305,250 crates, alphabetically

Data as of 2026-07-25 (crates.io database dump, timestamp 2026-07-25T02:00:36Z). Source: crates.io · db-dump.tar.gz · methodology & corrections.

sys_languageA cross-platform Rust library for detecting system language with preferred language selection and fallback support432MITInternationalization (i18n)Localization (L10n) sys_metricsCross-platform library to gather stats/information from the host55,158AGPL-3.0API bindingsOperating systems sys_notifysystemd ready notification library | systemd 就绪通知库1,137MulanPSL-2.0AsynchronousConcurrency sys_toolkitA high-performance, hardware-symbiotic system toolkit for Rust.30MIT OR Apache-2.0 sys_traitsTrait per function for system related functionality.2,461,967MIT sys_traits_macrosProcedural macros for sys_traits.2,236,668MIT sys_utilRust wrappers for system facilities that aren't in std.2,659BSD-3-Clause sysadmin-bindingsRust bindings for StarryInternet/sysadmin. Sysadmin is an embedded database and system configuration tool16,266non-standard sysalSystem abstraction layer37MIT sysalertSystem monitoring alerts2,826MIT sysauditWindows system auditor: enumerate installed software, updates, and industrial applications22MITCommand line utilitiesOperating systems::Windows APIs sysbarLibrary for interacting with the system's taskbar / tray / statusbar8,364MIT/Apache-2.0 sysblasMinimal CBLAS FFI bindings to system BLAS3,198MIT syscallRaw system calls23,846MIT/Apache-2.0 syscall-altsyscall-alt41,073MIT syscall-interceptUserspace syscall intercepting library.1,760MITAPI bindings syscall-linux-rawDefines syscallN methods for performing raw Linux syscalls21,134Unlicense syscall-numbersSystem calls numbers for various architectures217,233MITExternal FFI bindingsNo standard library syscall-rsSupport crate for Linux system programming4,097Apache-2.0API bindings syscall_attrpart of interceptor3,292MIT syscall_definesProvides linux syscall numbers as a constant for various architectures.2,942BSD-3-Clause syscall_encodeTraits and macros to help define a syscall interface for a kernel.13,799non-standardEncodingNo standard library syscall_encode_macrosProc macros for the syscall_encode trait.8,162BSD-3-Clause syscall_encode_traitsTraits and macros to help define a syscall interface for a kernel.9,356BSD-3-Clause syscall_macromacros for syscalls in x86_641,491MITNo standard library syscall_searcherA tool to search information of syscalls based on the API https://api.syscall.sh. You can search for a syscall number or name and…822GPL-3.0-or-laterCommand line utilities syscallerNo-std Linux direct syscall library2,882MIT OR Apache-2.0API bindingsDevelopment tools syscaller-coreNo-std Linux direct syscall library1,754MIT OR Apache-2.0API bindingsDevelopment tools syscaller-wrap-macroProcedural macro for parsing C function signatures into syscall wrappers for syscaller crate3,089MIT OR Apache-2.0API bindingsDevelopment tools syscallnrsUses your systems <syscall.h> to build maps from system call numbers to names (and vice versa).918MITDevelopment tools::FFINo standard library syscallsA list of Linux system calls.1,000,323BSD-2-Clause syscalls-rsIndirect syscalls for Windows2,192GPL-3.0 syscalls-rustLinux syscalls for rust10,837GPL-3.0-onlyAPI bindingsOperating systems::Linux APIs syscallzSimple seccomp library for rust110,535MIT/Apache-2.0 syscat[WIP] Cross-platform system information tool1,566MITAPI bindingsFilesystem syscoinGeneral purpose library for using and interoperating with Syscoin and other cryptocurrencies with AUXPOW support.21,901CC0-1.0 syscoin-bech32Encodes and decodes Bitcoin/Syscoin Segregated Witness addresses in Bech325,506MITEncoding syscon-rsA driver for syscon poweroff, and reboot in rust2,918MPL-2.0 sysconfSmall safe wrapper around sysconf499,184MIT OR Apache-2.0 syscordDisplay system status as Discord Rich Presence2,766GPL-3.0 sysctlSimplified interface to libc::sysctl17,101,852MIT sysctrlcmdSystem Commands for Linux, Windows, and MacOS (logoff, shutdown, reboot, etc.)3,824MIT OR Apache-2.0 sysd-managerApplication to empower user to manage their <b>systemd units</b> via Graphical User Interface. Not only are you able to make…58,611GPL-3.0-or-later sysd-manager-baseBase crate for sysd-manager providing common utilities and types.794GPL-3.0-or-later sysd-manager-comcontrolerCommunication controller for sysd-manager.577GPL-3.0-or-later sysd-manager-proxySimple lib used by sysd-manager to perform privileged operations via polkit over D-Bus.40GPL-3.0-or-later sysd-manager-test-baseTest utilities for sysd-manager.474GPL-3.0-or-later sysd-manager-translatingSimple lib used by sysd-manager to generate mo file2,939GPL-3.0-or-later sysdirRust bindings to sysdir(3) on macOS, iOS, tvOS, and watchOS27,128Apache-2.0 OR MITAPI bindingsFilesystem sysdirsCross-platform system directory paths for iOS, macOS, Android, Linux, Windows and other Unix712MITFilesystemOperating systems sysdnsA library for set/get system dns on macOS.1,931MIT sysdoUtility for working with my NixOS system3,363MIT OR Apache-2.0 sysdumpCross-platform system information viewer1,543MIT sysdxA systemd unit manager TUI35MITCommand line utilities sysenA system intelligence CLI tool that explains system behavior19MITCommand line utilities syserveSimple server for yew and yew-router apps5,359MIT OR Apache-2.0Web programming::HTTP server sysexitExit codes for programs8,258ISCCommand-line interfaceOperating systems sysexitsThe system exit codes as defined by <sysexits.h>1,425,171Apache-2.0 OR MITCommand-line interfaceNo standard library sysfetchStore-brand neofetch2,208MIT sysfpA utility crate utilizing the system CPU rounding and exceptions for floating-point operations.1,326non-standard sysfsProc-macro helpers for writing large swaths of ergonomic wrappers around Linux sysfs attributes.2,610MIT sysfs-classRust library for viewing /sys/class in an object-oriented format191,195MIT sysfs-pwmProvides access to the Linux sysfs interfaces to PWMs. Via this crate you can export, unexport, and control PWM pins for which…35,026MIT/Apache-2.0 sysfs-rsrust lib for interacting with sysfs18,525MIT OR Apache-2.0 sysfs-serdeThis crate Deserializes most common SysFS path's to Rust data types8,332MIT OR Apache-2.0 sysfs-wrapperTyped Rust wrappers for Linux sysfs class entries (/sys/class/ and /sys/bus/)20MIT sysfs_gpioProvides access to GPIOs using the Linux sysfs interface.6,083,542MIT/Apache-2.0 sysfs_inputA library for reading sysfs input devices1,671MIT OR Apache-2.0 sysfs_libProc-macro helpers for writing large swaths of ergonomic wrappers around Linux sysfs attributes.2,710MIT sysfs_macrosProc-macro helpers for writing large swaths of ergonomic wrappers around Linux sysfs attributes.2,115MIT sysfunc-blockcipher-xteaSimple XTEA block cipher implementation #![no_std].3,285ISCNo standard library sysfunc-byteorderBasic compile-time byteorder for various environments #![no_std].4,296ISCNo standard library sysfunc-dynamac-transmuteBasic cross-feature transmute macro support #![no_std]1,806ISCNo standard library sysfusssysfs wrapper for convenience4,258MIT sysidA simple library providing functionality to generate a 'system ID' that can be used to uniquely identify a computer.187MIT sysinfoLibrary to get system information such as processes, CPUs, disks, components and networks172,762,951MIT sysinfo-cliA lightweight, efficient, and professional CLI wrapper around the sysinfo crate.68MITCommand line utilitiesOperating systems sysinfo-guiA cross-platform system-monitoring gui application based on sysinfo and fltk18,831MITVisualization sysinfo-httpHTTP server to get system information3,746AGPL-3.0-or-laterWeb programming::HTTP server sysinfo-reportgathers some basic system info and generates a serializable report.2,558,896MIT sysinfo-webLightweight web based process viewer built on top of sysinfo4,938MIT sysinfo_dot_hA tiny sys/sysinfo.h wrapper7,373MITAPI bindingsOperating systems::Linux APIs sysinfo_rsA library for retrieving system information.9,036MIT sysinfojsonCommand-line tool that displays system information collected using `sysinfo` crate in JSON format1,166MIT sysinputsGenerate native system input events.2,863Unlicense sysitSystem Sit! Check on the system with a quick glance.29,077GPL-3.0-or-later sysk-forgetsReads the Stuff You Should Know RSS feed and stores it in a sqlite database4,174non-standard sysknife-brainLLM planning core for SysKnife — typed action proposals with formal risk levels105MITCommand line utilitiesOperating systems::Linux APIs sysknife-cliApproval-gated AI system administration CLI and MCP server74MITCommand line utilitiesOperating systems::Linux APIs sysknife-coreConfiguration and domain primitives for SysKnife133MITCommand line utilitiesConfiguration sysknife-daemonPolicy-enforced, audit-logged Linux action daemon for SysKnife98MITCommand line utilitiesOperating systems::Linux APIs sysknife-protoProtocol buffer definitions for the SysKnife daemon IPC contract148MITEncodingOperating systems::Linux APIs sysknife-typesShared action type definitions for SysKnife — reusable in third-party tooling133MITCommand line utilitiesOperating systems::Linux APIs syslibUse the Linux ABI on Rust, without C.2,165MIT syslib-macroMacros for syslib.2,827MIT syslockConvenient yet insanely secure linux filesystem encryption utility.1,676Unlicense syslogSyslog message formatter and writer, supporting unix sockets, UDP and TCP exporters8,259,033MIT syslog-cA simple package same as syslog in C5,332MIT OR Apache-2.0 syslog-ng-buildBuild script helpers3,767MIT/Apache-2.0 syslog-ng-commonHigh level bindings for syslog-ng15,472MIT/Apache-2.0 syslog-ng-sysLow level bindings for syslog-ng11,495MIT/Apache-2.0 syslog-rsA native Rust implementation of the glibc/libc/windows syslog client and windows native log for logging.35,445MIT OR MPL-2.0 OR EUPL-1.2AsynchronousOperating systems syslog-serverA small automation project to set up a syslog server, which also serves as a playground for Rust.70GPL-3.0Command line utilities syslog-server-mcpMCP server providing read-only investigation tools for SysLog-Server35MIT OR Apache-2.0Command line utilities syslog-tlsSend log messages to syslog5,015MIT syslog-tooA small library to send log messages to syslog locally and over TCP or UDP using Rust. A continuation of the syslog crate.40MITDevelopment tools::Debugging syslog-tracingsyslog backend for `tracing`1,460,205MITDevelopment tools::DebuggingDevelopment tools::Profiling syslog3Shim library re-exporting syslog::* from syslog version 3.06,565MIT syslog5424A trait based RFC5424 syslog formatter7,964MITDevelopment tools::DebuggingEncoding syslog_clientSyslog client3,448BSL-1.0 syslog_fmtZero-allocation RFC 5424 syslog message formatter8,832MIT OR Apache-2.0 syslog_herokuParser for Heroku (Logplex) syslog messages2,912ISC syslog_looseA loose parser for syslog messages.8,805,227MITParser implementations syslog_parseparse syslog,check syslog format2,769MIT AND Apache-2.0 syslog_protoI/O-free implementation of the syslog protocol191MITEncodingNo standard library syslog_rfc3164Parser for RFC3164 (IETF-format) syslog messages2,002ISC syslog_rfc5424Parser for RFC5424 (IETF-format) syslog messages93,963ISC syslogioCommand line utilities to work with UNIX syslog3,948MITCommand line utilities syslyA modern multi-transport syslog appender.14,278MIT sysmapProject Mapping CLI Tool57MITCommand line utilitiesDevelopment tools sysmlSysML.rs17,258UnlicenseNo standard library sysml-cliCLI-native knowledge graph toolkit for SysML v2111MIT sysml-coreSysML v2 knowledge graph library — parser, graph builder, queries, and rendering174MIT sysml-modelSysML.rs14,356UnlicenseNo standard library sysml-parserSysML.rs11,390UnlicenseNo standard library sysml-v2-parserSysML v2 textual notation parser for Rust1,641MITParser implementations sysml2Text-file-backed building blocks for SysML v2 system models14MITData structuresScience sysmonType definitions and (de)serialization support for Sysmon events39,609MIT OR Apache-2.0 sysmon-tuiA fast, beautiful, and lightweight Rust TUI system monitor for Linux25MIT OR Apache-2.0Command line utilities sysmon_rsSystem monitoring tool for tracking resource usage in Rust15MIT OR Apache-2.0 SysMonitorA System monitor written in rust for Windows.800MIT OR Apache-2.0 sysmonitorrsA System monitor written in rust for Windows, Mac, and Linux.936MIT OR Apache-2.0 SysMonkSysMonk is a highly efficient, lightweight API for resource monitoring that uses WebSockets for real-time streaming.7,703MITAlgorithmsAsynchronous sysnamesQuery Linux system call names and numbers at runtime5,639MIT sysnetTool to get system and network info for your machine2,706non-standard syspass-cliA CLI client for Syspass8,030MITCommand line utilities syspass_apiAn API wrapper for syspass written in Rust12,598GPL-3.0-or-later syspeekA fast and simple system information library for CPU, GPU, RAM, battery, disk, network, packages, and OS info173Apache-2.0Hardware supportOperating systems sysplusA bright, professional system info CLI written in Rust.279MITCommand line utilities sysproxyA library for set/get system proxy. Supports Windows, macOS and linux (via gsettings).76,406MIT syspulseCLI for syspulse daemon manager42MIT syspulse-coreCore library for syspulse daemon manager188MIT syspulse-pyPython bindings for syspulse daemon manager40MIT sysqueryA tool to find large files, get system information, expensive processes, and get network input and outputs.1,524MITCommand-line interface sysrayModern cross-platform system observability engine119Apache-2.0Command line utilitiesOperating systems sysrepoSysrepo Rust bindings generated by bindgen5,845Apache-2.0External FFI bindingsNetwork programming sysreqSimple, virtually-zero-dependencies HTTP client wrapping a system client56,788MIT OR Apache-2.0Web programming::HTTP client sysroot-cleanerA tool to clean up sysroots for Linux embedded devices in order to save storage space379EUPL-1.2Command line utilitiesDevelopment tools::Build Utils sysrunRun any executable as local SYSTEM account (no service required).700MITCommand line utilitiesOperating systems::Windows APIs sysstatusA small fast tool to get an overview of the system including load, storage usage, temperature and services.7,618non-standardCommand line utilities systemCross-platform crate to easily run shell commands, similar to the C system function.11,202MITOperating systems system-alertA Rust library for monitoring and visualizing system alerts.276MIT OR Apache-2.0Command line utilitiesDevelopment tools::Profiling system-analysisA comprehensive Rust library for analyzing system capabilities, workload requirements, and optimal resource allocation1,270MIT OR Apache-2.0Development toolsHardware support system-backupTODO2,080MIT OR Apache-2.0 system-callRaw system calls15,275MIT/Apache-2.0 system-configA library for storing application properties on disk.4,670MITData structures system-configurationBindings to SystemConfiguration framework for macOS160,381,179MIT OR Apache-2.0API bindingsOperating systems::macOS APIs system-configuration-sysLow level bindings to SystemConfiguration framework for macOS158,999,594MIT OR Apache-2.0External FFI bindingsOperating systems::macOS APIs system-crossPort of the module 'aplustools.io.env' from my Python 'aplustools' utility library.23LGPL-3.0-only system-depsDiscover and configure system dependencies from declarative dependencies in Cargo.toml58,016,550MIT OR Apache-2.0 system-deps-metaDiscover and configure system dependencies from declarative dependencies in Cargo.toml38MIT OR Apache-2.0 system-eventssystem events monitor2,709MIT system-extensionsA robust set of extensions for operating system operations.6,305MIT system-fontsSystem font discovery and locale-based font preset selection.17,105MIT OR Apache-2.0Localization (L10n) system-gaugesA tui program that displays information about your system in a gauge format37non-standard system-graphsystem-graph is an experimental alternative for shred's Dispatcher.1,814MIT/Apache-2.0Concurrency system-harnessAn system harness abstraction and configuration serialization provider for virtualization and emulation systems6,581MIT OR Apache-2.0 system-harness-macrosA helper library for the system-harness crate5,871MIT OR Apache-2.0 system-hookshook: webhook server to automatically update production servers3,169MITDevelopment tools system-idle-timeA cross-platform Rust library for getting the last user input on the system.8,663MIT system-infoLibrary to get system information92,511BSL-1.0API bindingsOperating systems system-info-liteA library for getting system information, including CPU, GPU, RAM, and OS information.1,831Apache-2.0 system-interfaceExtensions to the Rust standard library12,455,576Apache-2.0 WITH LLVM-exception OR Apache-2.0 OR MITFilesystemNetwork programming system-memoryA small crate to get info/stats on the host's memory15,601MIT system-messageCreate system messages (dev)6,043MIT OR Apache-2.0 system-mimallocUse the system's shared mimalloc library as allocator3,912MIT OR MIT-0API bindingsMemory management system-monitorA system monitoring tool built in Rust431MITCommand line utilitiesDevelopment tools system-monitor-rsA lightweight cross-platform system monitoring tool with desktop notifications88MITCommand line utilitiesOperating systems system-pause`system-pause` is a Rust library for stopping program execution temporarily. It offers simple macros for pausing the console,…2,385non-standard system-profileCached system profile information for runtime optimization decisions684MITDevelopment toolsOperating systems system-serviceFramework to handle logging, signals, etc. so you can focus on business logic6,409Apache-2.0 system-themeA cross-platform Rust library to help build native-looking applications.500MIT/Apache-2.0GUIOperating systems system-timerasync timers built on SystemTime37MIT OR Apache-2.0AsynchronousDate and time system-tools360-style Windows disk cleaning tool — 35 built-in rules, Lua script extension, MCP protocol support26MITCommand line utilities system-trayAsync `StatusNotifierItem` and `DBusMenu` client for custom tray implementations.38,640MITGUI system-updaterA tool to help keeping your system up to date.1,526AGPL-3.0-or-laterCommand line utilities system-uptimeA cross-platform Rust library for retrieving operating system uptime.570MIT system-utilsCross-platform utilities for interacting with operating system features such as audio control, power management, system…120MITDevelopment tools system76-oledControl brightness on OLED displays5,754LGPL-3.0-or-later system76_ecflashFlashing and querying with System76 Embedded Controllers11,155LGPL-2.1-or-later system76_ectoolSystem76 EC tool58,168MIT system_alloc_statsA wrapper exposing some stats for the System allocator.1,541CC0-1.0Memory management system_apiYou will experience a strong urge to do good; but it will pass.1,214Apache-2.0 system_dataA package for collect information about system's OS, CPU and Disk_Drive2,814MIT system_diskinfoA package for collect information about system disk drive etc.12,909MIT system_dnsSimple API to query the system dns3,622Apache-2.0 system_envInformation about the system environment: operating system, architecture, package manager, etc.119,319MIT system_errorA library for cross platform system errors81,712MIT system_healthA command-line tool to display system health information including battery status, RAM usage, and system resources705MITCommand line utilitiesDevelopment tools system_info_collectorSimple and fast application to collect os information and create graphs based on it6,392MIT