All 305,250 crates, alphabetically

call-counterCall Counter933MIT OR Apache-2.0 call-fsmA simple, callback based, finite state machine handler1,612MIT call-laura-coreStructured document review grounded in Laura Serna Gaviria's Human-AI Co-Evolution framework (UIP, 8-Layer Model) plus…19LGPL-3.0-or-laterScience call-me-in-cliA simple Rust CLI for learning purposes77MIT call-onceA type that can only be called sucessfully once.147,702MIT OR Apache-2.0No standard libraryRust patterns call-recursionHack async to do recursion on the heap.660MIT OR Apache-2.0 call-shieldOn-device call screening without the cloud17UnlicenseCommand line utilities call-traceProvides a way to annotate a function to inject tracing code before and after its body.23,733MIT/Apache-2.0 call-trace-macroProvides the procedural macros for the `call-trace` crate.24,411MIT/Apache-2.0 call-trace-tlsProvides a way to annotate a function to inject tracing code before and after its body.1,924MIT/Apache-2.0 call2-for-synApply parser functions to proc-macro2 token streams42,917MIT OR Apache-2.0Development tools::Procedural macro helpers call_inputGet user input in rust like that of cs50 header file1,597MIT call_loggerA logger that calls another application for every logged item18,181Apache-2.0Development tools::Debugging callablecallable closures implementing PartialEq and argument operations6,533MIT callbackA library for handling callbacks in WebAssembly30,125MIT OR Apache-2.0No standard libraryWebAssembly callback-exampleexample raw solana program to show how to use the callback feature of bonsol854MIT callback-futureAdapter between callbacks and futures14,073MIT/Apache-2.0 callback-resultAssists in converting the callback function's method of obtaining results into the await method8,369MIT callback-traitImplement trait for Fn so that functions that accept traits as parameters can directly receive Fn parameters.6,824non-standard callback_cellLike an Atomic<Option<Box<FnOnce()>>>1,579MITConcurrency callback_fnA library for callback functions.1,603MIT callbagRust implementation of the callbag spec for reactive/iterable programming18,507MIT OR Apache-2.0AsynchronousConcurrency callcomapiA facade crate for callcomapi, simplifying Use of macros.158MIT OR Apache-2.0 callcomapi_macrosProcedural macros for Simplify comapi calls249MIT OR Apache-2.0 callcomapi_runtimeRuntime support for callcomapi_macros323MIT OR Apache-2.0 calldata-compressorA Compression algorithm for EVM abi.encoded data, especially for EVM calldata11,225Apache-2.0 calldownOpenContainer-compliant Jails on FreeBSD2,037BSD-3-Clause calleeA library to show information about the calling process.7,722MIT calleenRobust HTTP request library for those who don't like getting unnecessarily paged while on-call.34,646MIT callerA WebApi Caller1,318non-standard caller_lineGet the line from which the current function was called.3,610MIT OR Apache-2.0 caller_modpathGet the module path of the caller in a proc_macro3,150MIT OR Apache-2.0Development tools caller_modpath_macrosproc_macros for caller_modpath3,942MIT OR Apache-2.0Development tools callghostDirect syscall framework for Rust on Windows x86_64. Bypasses usermode API hooks (EDR/AV) via multiple methods.24MITNo standard libraryOperating systems::Windows APIs callghost-macrosProc macros for callghost: syscall! macro with direct, indirect, unhook, perunsfart methods42MITOperating systems::Windows APIs callghost-runtimeRuntime for callghost: PEB walking, SSN resolution, unhook infrastructure42MITNo standard libraryOperating systems::Windows APIs callgrindcallgrind48,628MIT callgrind-compareA modern tool to compare callgrind_annotate outputs and track performance changes over time. Enhanced fork with new features…1,153MITCommand line utilitiesDevelopment tools::Profiling callgrind_differA tool to compare outputs of `callgrind_annotate` over time.660MITCommand line utilitiesDevelopment tools::Profiling calliAn embedded database crate20BUSL-1.1 calliopeBoard support crate for the Calliope Mini (calliope.cc)3,953GPL-3.0-or-later calliope-commonCommon parts for the calliope board support crate.3,067GPL-3.0-or-later calliope-miniBoard support crate for the Calliope mini4,018MITEmbedded developmentHardware support callipe-rsMetrics collector in the vein of telegraf written in rust.1,877MIT calliperFine-grained benchmarking made easy.9,567Apache-2.0/MITDevelopment tools::Profiling callipygian_spaghettification_impossiblyhttps://internals.rust-lang.org/t/crates-io-squatting/8031/115?u=dtolnay4,083MIT/Apache-2.0 callispA lisp interpreter that can be used with WASM.4,173GPL-2.0Compilers callistosCallisto celestial simulation crate for the MilkyWay SolarSystem workspace68MITScienceSimulation callixA flexible HTTP client library for calling various AI APIs or somthing with configuration and templating support51GPL-3.0 callmRun Generative AI models directly on your hardware3,128MIT calloopA callback-based event loop50,589,597MIT calloop-dbusEventSource to use DBus with the calloop event loop.3,194BSD-2-Clause calloop-notifyCalloop adapter for Notify3,708MITAsynchronousFilesystem calloop-subprocSubprocess support for the Calloop event loop1,703MIT calloop-wayland-sourceA wayland-rs client event source for callloop35,607,193MIT callosumZero-copy shared memory IPC for Rust46MIT OR Apache-2.0AsynchronousNetwork programming callpassGenerate APRS passcodes17,571GPL-2.0AlgorithmsAuthentication calltraceA service to structure your call traces (call stacks)14,995MIT OR Apache-2.0 calltrace-rsHigh-performance function call tracing library for C/C++ applications using GCC instrumentation with Rust safety guarantees21MIT OR Apache-2.0Development tools::DebuggingDevelopment tools::Profiling callumcallum22non-standard callwireHigh-performance bidirectional RPC over TCP with MessagePack framing — Go, Python, Rust interop103MITAsynchronousEncoding callystoStream processing framework.19,196Apache-2.0AsynchronousConcurrency callysto-avroAvro serde for Callysto Stream Processing Framework2,958Apache-2.0AsynchronousConcurrency calmA meta linting system.2,233BSD-3-Clause calm_ioCalms a panicky I/O stream.1,513,933MITCommand-line interface calmdownFails if the directory is modified too recently1,838Unlicense OR MIT calmio_filtersCalms a panicky I/O stream.1,512,768MITCommand-line interface calnexusA command-line math expression evaluator with 11 computation domains, symbolic calculus, REPL, and batch processing20MITCommand line utilitiesMathematics caloric-fluxSteady-state heat transfer helpers: conduction through slabs, Newtonian convection, Stefan-Boltzmann radiation and series thermal…19BSD-3-Clause calorie-less-emasAlibaba Cloud EMAS PushV2 client crate for sending push notifications40MIT calorie-less-mqttAlibaba Cloud MQTT client crate with Token auth, online status query, and message push138MIT calproCalpro core models and controllers9,488MIT calpro-coreCalpro core models and controllers2,982MIT calstrdead simple calendar summary for bars13AGPL-3.0-or-later calsyncCLI tool to copy assignments off of canvas and into ICS format1,734non-standard CaltechA powerful open-source project that offers rich features and flexible extensibility.1,387OFFIS caltempsA tool to query and report on your iCalendar data from vDirs.3,282MITCommand line utilities caltuiSimple calc from terminal72MITCommand line utilities calverCalver: A lightweight command-line tool for effortless Calendar Versioning increments.821MIT calveryOfficial Rust SDK for Calvery Vault secret manager34MITAPI bindingsConfiguration calxOxidized Core Audio API2,048LGPL-3.0-onlyAPI bindings calx-ecsSerializable entity component system for games11,535MIT OR Apache-2.0 calx_vmStack-based VM, with dynamic data, for experiment10,585MIT calybris-coreDeterministic proof-carrying decision core with replay verification, WAL, and fixed-point budget proofs150Apache-2.0AlgorithmsFinance calypsoThis crate name is being held until it is used1,823MIT calypso_baseBase types and utilities for Calypso that don't require any other Calypso crates (excluding calypso_error)4,615MIT OR Apache-2.0 calypso_errorError-handling utilities for use within Calypso5,420MIT OR Apache-2.0 calypso_filetyBinary file type descriptions, parsers, etc. for Calypso18,695MIT OR Apache-2.0 calyxCompiler Infrastructure for Hardware Accelerator Generation18,904non-standardCompilers calyx-backendCompiler Infrastructure for Hardware Accelerator Generation7,608non-standardCompilers calyx-frontendCompiler Infrastructure for Hardware Accelerator Generation22,375non-standardCompilers calyx-irCompiler Infrastructure for Hardware Accelerator Generation20,747non-standardCompilers calyx-optCompiler Infrastructure for Hardware Accelerator Generation16,666non-standardCompilers calyx-stdlibCompiler Infrastructure for Hardware Accelerator Generation8,730non-standardCompilers calyx-utilsCompiler Infrastructure for Hardware Accelerator Generation23,032non-standardCompilers calyx_rsA Rust port of the Calyx generative grammar library39LGPL-3.0-or-later calzA Rust library for multi-calendar conversion.687MIT OR Apache-2.0 camPure Rust library to control and monitor DSLR or mirrorless cameras552AGPL-3.0-or-later cam-geomGeometric models of cameras for photogrammetry154,976MIT OR Apache-2.0AlgorithmsComputer vision camarimEasy setup logging on FFI libs for mobile devices1,822MIT OR Apache-2.0 camasciiWebcam live stream rendered as colored ASCII art in the terminal20MIT camberOpinionated async Rust for IO-bound services on top of Tokio297MIT OR Apache-2.0AsynchronousNetwork programming camber-buildBuild helpers for Camber code generation372MIT OR Apache-2.0 camber-cliCLI, project scaffolding, and config-driven proxy for Camber203MIT OR Apache-2.0Command line utilitiesNetwork programming camber-macrosProcedural macros for Camber391MIT OR Apache-2.0 cambiA tool that infers semantic version bumps from conventional commits, updates CHANGELOG.md, and manages GitHub releases.227ISCCommand-line interfaceCommand line utilities cambiarA lightweight CLI for converting between common file formats9MITCommand line utilities cambiumA Meristem backend and application toolkit for Genet117MPL-2.0 cambium-nematicCambium-native views and themes for Nematic smolweb content64MPL-2.0 cambium-winitwinit input translation for Cambium applications36MPL-2.0 cambrianA Pragmatic Global Black-Box Optimizer6,405MITCommand line utilities cambrian-rust-sdkRust SDK for building Cambrian payload containers for Actively Validated Services (AVS)676MIT CambridgA user-friendly open-source project that helps you solve problems quickly.1,445Mup CambridgeA high-performance open-source project suitable for large-scale data processing.1,396OML cambridge-asmRun pseudoassembly from Cambridge International syllabus 961855,108MPL-2.0 cambridge-asm-cliRun pseudoassembly from Cambridge International syllabus 961810,055MPL-2.0 cambridge-pseudocode-interpreterA Rust-based interpreter for Cambridge International AS & A Level Computer Science (9618) pseudocode268MITCommand line utilitiesDevelopment tools camctl_rsA Rust rewrite of https://github.com/leaty/camctl4,885GPL-3.0 camctrlCamera control math3,066MIT OR Apache-2.0 camel-apiCore traits and interfaces for rust-camel5,987Apache-2.0AsynchronousDevelopment tools camel-authProvider-neutral authentication and claim mapping for rust-camel1,914Apache-2.0AsynchronousDevelopment tools camel-beanBeans/Registry system for rust-camel2,076Apache-2.0AsynchronousDevelopment tools camel-bean-macrosProc-macros for camel-bean crate2,205Apache-2.0AsynchronousDevelopment tools camel-bridgeBridge process lifecycle management for rust-camel (spawn, health, download)1,466Apache-2.0 camel-builderFluent route builder API for rust-camel1,144Apache-2.0AsynchronousDevelopment tools camel-case-token-with-commentHandles camel case tokens with optional comments and provides utilities for parsing token files and extracting JSON fields.18,164non-standard camel-cliCommand-line interface for Apache Camel in Rust694Apache-2.0Command line utilitiesDevelopment tools camel-componentComponent trait and registry for rust-camel687Apache-2.0AsynchronousDevelopment tools camel-component-apiComponent API trait and registry for rust-camel3,745Apache-2.0AsynchronousDevelopment tools camel-component-containerDocker/Container component for rust-camel — run, manage and listen to container events via the Camel routing engine982Apache-2.0AsynchronousDevelopment tools camel-component-controlbusControlBus component for rust-camel1,105Apache-2.0AsynchronousDevelopment tools camel-component-cronCron component for rust-camel — triggers Routes on Unix cron schedules54Apache-2.0AsynchronousDevelopment tools camel-component-cxfCXF/SOAP component for rust-camel via Java bridge578Apache-2.0AsynchronousNetwork programming camel-component-directDirect component for rust-camel (in-memory routing)1,289Apache-2.0AsynchronousDevelopment tools camel-component-execFail-closed system command execution component for rust-camel79Apache-2.0AsynchronousDevelopment tools camel-component-fileFile component for rust-camel1,154Apache-2.0AsynchronousDevelopment tools camel-component-grpcgRPC component for rust-camel (dynamic producer and consumer)587Apache-2.0 camel-component-httpHTTP client component for rust-camel1,164Apache-2.0AsynchronousDevelopment tools camel-component-jmsJMS component for rust-camel via Java bridge917Apache-2.0AsynchronousNetwork programming camel-component-kafkaKafka component for rust-camel integration framework819Apache-2.0AsynchronousDevelopment tools camel-component-keycloakKeycloak integration for rust-camel — claim presets, URL builders (Admin API and event consumer in future phases)376Apache-2.0AsynchronousDevelopment tools camel-component-llmLLM chat, embeddings, tool calling, multi-turn, response cache, cost observability, retry, and concurrency control via OpenAI,…260Apache-2.0AsynchronousDevelopment tools camel-component-logLog component for rust-camel1,283Apache-2.0AsynchronousDevelopment tools camel-component-mockMock component for rust-camel testing1,346Apache-2.0AsynchronousDevelopment tools camel-component-mqttMQTT 3.1.1 component for rust-camel (rumqttc-v4-next)128Apache-2.0AsynchronousNetwork programming camel-component-opensearchOpenSearch component for rust-camel484Apache-2.0AsynchronousDatabase interfaces camel-component-redisRedis component for rust-camel1,032Apache-2.0AsynchronousDatabase interfaces camel-component-sedaSEDA component for rust-camel (asynchronous in-memory staging)475Apache-2.0AsynchronousDevelopment tools camel-component-sqlSQL component for rust-camel (PostgreSQL, MySQL, SQLite via sqlx)969Apache-2.0AsynchronousDatabase interfaces camel-component-surrealdbSurrealDB multi-model database component for rust-camel269Apache-2.0AsynchronousDevelopment tools camel-component-timerTimer component for rust-camel1,450Apache-2.0AsynchronousDevelopment tools camel-component-validatorValidator component for rust-camel (XSD, JSON Schema, YAML)753Apache-2.0AsynchronousDevelopment tools camel-component-wasmWASM plugin component for rust-camel509Apache-2.0AsynchronousDevelopment tools camel-component-wsWebSocket component for rust-camel860Apache-2.0AsynchronousDevelopment tools camel-configConfiguration and route discovery for rust-camel1,072Apache-2.0AsynchronousDevelopment tools camel-containerContainer utilities for rust-camel20Apache-2.0AsynchronousDevelopment tools camel-coreCore engine for rust-camel2,005Apache-2.0AsynchronousDevelopment tools camel-dataformat-protobufProtobuf DataFormat for rust-camel (JSON <-> protobuf wire format)727Apache-2.0 camel-dslDSL support for rust-camel (YAML, JSON)1,352Apache-2.0AsynchronousDevelopment tools camel-endpointEndpoint abstractions for rust-camel4,584Apache-2.0AsynchronousDevelopment tools camel-endpoint-macrosProc-macros for camel-endpoint4,235Apache-2.0AsynchronousDevelopment tools camel-functionFunction runtime service for out-of-process function execution509Apache-2.0AsynchronousDevelopment tools camel-healthHealth check HTTP endpoints and standalone server for rust-camel1,346Apache-2.0AsynchronousDevelopment tools camel-language-apiLanguage trait API for rust-camel (Expression, Predicate)4,762Apache-2.0AsynchronousDevelopment tools camel-language-jsJavaScript language plugin for camel-language924Apache-2.0AsynchronousDevelopment tools camel-language-jsonpathJSONPath Language for rust-camel (RFC 9535)978Apache-2.0AsynchronousDevelopment tools camel-language-minijinjaMiniJinja template rendering language for rust-camel31Apache-2.0AsynchronousDevelopment tools camel-language-rhaiRhai scripting language for rust-camel1,070Apache-2.0AsynchronousDevelopment tools camel-language-simpleSimple Language for rust-camel YAML DSL2,222Apache-2.0AsynchronousDevelopment tools camel-language-xpathXPath Language for rust-camel (XPath 1.0 via sxd-xpath)959Apache-2.0AsynchronousDevelopment tools camel-masterMaster/leader-election component — wraps a delegate Consumer with distributed lock-based leadership coordination via…749Apache-2.0 camel-otelOpenTelemetry integration for rust-camel1,442Apache-2.0AsynchronousDevelopment tools camel-platform-kubernetesKubernetes platform integration for Apache Camel Rust808Apache-2.0 camel-processorMessage processors for rust-camel2,198Apache-2.0AsynchronousDevelopment tools camel-prometheusPrometheus metrics integration for rust-camel1,187Apache-2.0AsynchronousDevelopment tools camel-proto-compilerRuntime .proto compilation with descriptor pool caching804Apache-2.0 camel-supportSupport utilities for rust-camel1,294Apache-2.0AsynchronousDevelopment tools camel-testTesting utilities for rust-camel610Apache-2.0AsynchronousDevelopment tools camel-upAn oracle for the game Camel Up1,856MITGamesMathematics camel-utilUtility functions and helpers for rust-camel2,504Apache-2.0AsynchronousDevelopment tools camel-witWIT interface definitions for rust-camel WASM plugins474Apache-2.0AsynchronousDevelopment tools camel-xjXJ (XML <-> JSON) Data Format for Rust Camel (via xml-bridge)717Apache-2.0 camel-xsltXSLT Component for rust-camel (via xml-bridge)845Apache-2.0 camelcaseConvert a dash/dot/underscore/space-separated string to camelCase (foo-bar -> fooBar). A faithful port of the camelcase npm…45MIT OR Apache-2.0Text processingValue formatting camelcase-keysRecursively convert the keys of a JSON object to camelCase. A faithful port of the camelcase-keys npm package.15MIT OR Apache-2.0Text processingValue formatting cameleoncameleon is a safe, fast, and flexible library for GenICam compatible cameras.59,808MPL-2.0Computer vision cameleon-devicecameleon-device provides device specific protocol decoders and basic I/O operations for GenICam compatible devices.58,265MPL-2.0Computer vision cameleon-genapicameleon-genapi provides parser and interpreter of GenApi XML.58,344MPL-2.0Computer visionParser implementations cameleon-implUtilities used by other cameleon crates implementation.57,550MPL-2.0Computer vision cameleon-impl-macrosUtilities used by other cameleon crates implementation.58,325MPL-2.0Computer vision camelliaCamellia block cipher6,898,410MIT OR Apache-2.0CryptographyNo standard library camellia-config-extExtension traits for the config crate providing environment-aware configuration loading with schema support1,034MIT camellia-envRuntime environment detection library with build-time fallbacks for Rust applications1,601MIT camellia-netA high-performance AF_XDP networking library for Linux363MIT OR Apache-2.0Network programmingOperating systems::Linux APIs camellia-rsRust implementation of Camellia cipher.4,709MITAlgorithmsCryptography camelliakvEmbedded persistent key-value storage optimized for random-access workload and huge-capacity HDD1,635non-standardDatabase implementations camelot_kconfigKconfig crate for camelot operating system374Apache-2.0No standard libraryOperating systems camelot_kconfig_importKconfig crate for camelot operating system376Apache-2.0No standard libraryOperating systems camelpasteA fork of paste using lowerCamelCase (hopefully temporary)871,613MIT OR Apache-2.0No standard library camembertDisk-usage explorer en CLI Rust : scanne un dossier et l'affiche en camembert ASCII Unicode interactif (drill-down…18MIT