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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.

cooplan-definition-schema-validatorValidate JSON values against a definition7,631MIT cooplan-definitions-io-libIO features for cooplan's definitions9,965MIT cooplan-definitions-libEssential components for Cooplan's custom definitions10,756MIT cooplan-lapin-wrapperLapin wrapper for making AMQP connections easier to manage in Cooplan's microservices13,824MIT cooplan-mongodbCooplan wrapper for MongoDB2,825MIT cooplan-state-trackerTracking utility for tasks' states within Cooplan's microservices9,945MIT cooplan-utilutlity functions used within Cooplan2,783MIT cooprprettier dnf copr helper, search and install copr packages2,895MIT OR Apache-2.0 Command line utilities coopted_llvm_sysCoöpt rustc‘s own LLVM to do fancy stuff with it1,797Apache-2.0 OR MIT cooptexDeadlock free Mutexes8,030MIT coordA simple, ergonomic vector mathematics crate29,575MIT coord-transform基于rust的高德、百度、WGS84互相转换算法2,195BSD-3-Clause coord2drust lib for coordinate in 2d system34,950MIT coord_2dA general purpose 2d coordinate119,801MIT coord_transformsA Rust crate use for performing coordinate transformations.28,242MIT Algorithms Embedded development coorderTyped affine coordinates: points tagged by the space they live in, and the affine maps between them.85MIT OR Apache-2.0 Mathematics coordfmtCLI and library for geographic coordinates format conversions1,683GPL-3.0-or-later Aerospace Encoding coordgenA thin rust wrapper around coordgen11,929MIT API bindings Science coordify-coreMulti-agent coordination daemon for Claude Code — CAP protocol over Unix sockets18MIT Command line utilities Development tools coordinate-altitudeFetch altitude/elevation for geographical coordinates of planet Earth.1,383MIT coordinate-frameVery simple coordinate frame conversions7,909EUPL-1.2 OR Apache-2.0 OR MIT No standard library No standard library::No dynamic allocation coordinate-frame-deriveVery simple coordinate frame conversions8,286EUPL-1.2 OR Apache-2.0 OR MIT No standard library No standard library::No dynamic allocation coordinate-transformerProvides functions and structures for converting geocentric Cartesian coordinates, latitude and longitude, JPR, and pixel…11,356MIT OR Apache-2.0 Mathematics Science::Geospatial coordinatesSimple, no nonsense, library for using two and three dimensonal coordinates in several systems.10,256MIT-0 OR 0BSD Graphics Mathematics coordinates_outliersA simple outlier detection in 2D paths taken2,792MIT coordinatorCoordinator is a library to load balance tasks into task runners2,366MIT coordinator_derivecoordinator_derive is a supporting library for macros1,646MIT coordinode-lsm-treeEmbedded LSM-tree storage engine: BuRR filters, zstd dictionary compression, MVCC, range tombstones, merge operators, K/V…2,109Apache-2.0 Compression Data structures coordtransformProvide mutual conversions between Baidu Coordinate System (BD09), Mars Coordinate System (GCJ02), and WGS84 Coordinate System.1,617MIT Algorithms Science coordtransform-rsa rust library for coordinate transformation1,879MIT OR Apache-2.0 copHighly efficient first-order connection proving4,152GPL-3.0-only No standard library Science copaParser for implementing terminal emulators68,496Apache-2.0 OR MIT copanionA Rust CLI/TUI for attaching learning notes to source files and exporting structured follow-up questions for coding agents.57MIT Command line utilities Development tools copc-coreShared COPC metadata, hierarchy, streaming point, and error types1,131MIT OR Apache-2.0 Data structures Science copc-readerPure-Rust COPC reader with public hierarchy access548MIT OR Apache-2.0 Parser implementations Science copc-rsCloud Optimized Point Cloud (COPC) reader and writer.6,295MIT/Apache-2.0 Rendering::Data formats Science::Geospatial copc-streamingAsync streaming COPC (Cloud-Optimized Point Cloud) reader975MIT Rendering::Data formats Science::Geospatial copc-temporalCOPC Temporal Index Extension reader for time-range filtering of point clouds441MIT Rendering::Data formats Science::Geospatial copc-writerPure-Rust COPC writer with streaming LAS intake917MIT OR Apache-2.0 Encoding Science copc_converterFast, memory-efficient converter from LAS/LAZ to COPC (Cloud-Optimized Point Cloud)982MIT Command line utilities Science::Geospatial copewip2,519AGPL-3.0-only cope-domwip1,708AGPL-3.0-only copefmtcopium code formatter1,567MIT copepodAn instrumentation tool to monitor queue depths in tokio channels901Apache-2.0 copernica-brokerThe broker forwards requests upstream (towards responders) and forwards responses downstream (towards requestors)1,737MPL-2.0 copernica-commonCommon types and functions used between all copernica crates4,270MPL-2.0 copernica-linksTransports used to link copernica brokers to other brokers and or protocols1,732MPL-2.0 copernica-packetsTypes and functions used between all copernica crates3,699MPL-2.0 copernica-protocolsProtocols are essentially the "endpoints" in a copernica network.1,751MPL-2.0 copernicusReserved.18MIT OR Apache-2.0 copernicus-codegenReserved.18MIT OR Apache-2.0 copernicus-coreReserved.19MIT OR Apache-2.0 copernicus-edsReserved.17MIT OR Apache-2.0 copernicus-macroReserved.19MIT OR Apache-2.0 copernicus_explorerBrowse and download Sentinel satellite products from the Copernicus Data Space Ecosystem (CDSE)92MIT copernicus_viewerGUI viewer and library for inspecting and comparing EOPF Zarr products from the Copernicus ecosystem37MIT OR Apache-2.0 GUI Science copernicusmarine_rsA Rust library (wrapper) for accessing data from Copernicus marine using the copernicus-marine-toolbox.953GPL-3.0-or-later API bindings Science::Geospatial copesA tool that identifies executable files used in automatic CoreCtrl profiles1,028GPL-3.0-or-later copexCopilot Extended - AI assistant CLI with chat, plan, and ralph modes80MIT Command line utilities Development tools copgyCLI utility tool for copying data between and executing SQL on PostgreSQL databases10,965MIT Command line utilities copiaPure Rust rsync-style delta synchronization library3,353MIT Algorithms Compression copiablebufCopiable buffer, a tinier `Vec`, uses a fixed-size array to store a variable number of items.9,616non-standard copic_colorsCopic color list4,090MIT OR Apache-2.0 No standard library copicsCopy-Optimized Performantly-Indexable Component System1,629MIT OR Apache-2.0 copieCopies file from or to paths specified in environment variables and command-line.3,015MIT Command line utilities Filesystem copiepateSend copy events over the network5,729MIT Command line utilities copilotMCP Server for Cargo70MIT copilot-apiOpenAI and Anthropic-compatible gateway for GitHub Copilot or Codex or third-party providers (Rust port).1010BSD Command line utilities Web programming copilot-api-proxyA local proxy that exposes GitHub Copilot as OpenAI and Anthropic compatible APIs.68MIT Command line utilities Web programming::HTTP server copilot-clientA client for the GitHub Copilot API2,186MIT copilot-money-cliUnofficial CLI client for Copilot Money100MIT Command line utilities copilot-rsA Rust SDK for interacting with chat models, providing easy-to-use functions and tools.1,836MIT Development tools copilot-rs-macroA Rust SDK for interacting with chat models, providing easy-to-use functions and tools.2,913MIT Development tools copilot-sdkPlaceholder for the Copilot Rust SDK. The first real release will be 0.1.0.28MIT API bindings copilot-sdk-superchargedRust SDK for programmatic control of GitHub Copilot CLI via JSON-RPC 2.01,818MIT API bindings Development tools copilot-usageCLI to inspect GitHub Copilot premium request usage210MIT Command line utilities copilot3d-aiCopilot 3D platform for AI 3D model generation from prompts and images.21MIT copilot3d_linksRegistry entry for Copilot 3D, an AI 3D model generator.13MIT Web programming copilot3d_orgMinimal Rust package for Copilot 3D AI 3D generator metadata and docs.rs indexing.13MIT Multimedia copitCopy reusable source code from GitHub repos, HTTP URLs, and ZIP archives into your project88MIT Command line utilities Development tools coplCoPL tools1,711Apache-2.0 coplandA ratatui-based UI framework for building terminal UIs consistently and fast.192Apache-2.0 coplex-cageDeterministic WASM sandbox for multi-agent orchestration10Apache-2.0 Concurrency WebAssembly copoA command line pomodoro timer4,315Apache-2.0 Command line utilities copollMinimalistic abstractions for the epoll linux api5,368Apache-2.0 API bindings Concurrency coppConvex-objective path parameterization for robotic trajectory planning.320MIT Algorithms Mathematics coppeliasim_zmq_remote_apiA ZMQ Client for CoppeliaSim7,351non-standard API bindings Science::Robotics copperA constraint programming solver.2,225MIT copper-bdf-parserBDF font parser808MIT OR Apache-2.0 Parser implementations copper-rsCopper.rs is a simple library for 2D games written in Rust targeting HTML5.1,599MIT copperlaceProcedural text renderer for generative grammar configuration61Apache-2.0 Template engine Text processing copperlinePure-Rust Command Line Editing Library40,072MIT coppersCoppers is a custom test harnass that measures the energy usage of your test suite.4,427Apache-2.0 coppiceDynamic programming library for acyclic analytical queries3,748MIT coppySend standard output (stdout) to clipboard4,575MIT copraA RPC framework (still in early development stage)3,363MIT/Apache-2.0 coprimeZero-dependency, no_std u64 number theory and modular arithmetic. Public, secret-free — Stage One, no constant-time guarantees…32BSD-3-Clause Cryptography Mathematics coproductGeneric coproduct type with minimal memory footprint7,643MIT coproduct-idtype-macroa proc macro for the coproduct crate1,607MIT coprosizecoprolite research (paleontology and archaeology): estimate the producer's body mass based on coprolite diameter by the use of…20,444MIT Algorithms Command line utilities coproxyOpenAI-compatible API proxy backed by GitHub Copilot156MIT Command line utilities Web programming::HTTP server copseDirect ports of the standard library's BTreeMap, BTreeSet and BinaryHeap collections, but that sort according to a specified…7,661MIT OR Apache-2.0 Data structures No standard library copstrCOpy STRing module15,270MIT Rust patterns coptcopt protocols4,134non-standard copt-solverAn unofficial Rust API for COPT (Cardinal Optimizer)65MIT Algorithms API bindings copt-sysLow-level FFI bindings of COPT (Cardinal Optimizer) C API for Rust (unofficial)186MIT copticUnintended name squat2,956MIT OR Apache-2.0 coptiona const-generics / adt-const-param compatible Option alternative2,975GPL-3.0-only copySimple cross-platform CLI/GUI clipboard bridge49AGPL-3.0-or-later copy-cardsA casino game where you don't want duplicates9,999GPL-3.0 copy-channelsA collection of cross-thread channels for copyable types297MIT Asynchronous Concurrency copy-double-bufferedConcurrent copy for embedded-io-async39MIT copy-env-runnerRun a command with another process's environment variables50MIT copy-globA small utility to copy files to an output directory using glob syntax1,591MIT Development tools::Build Utils Filesystem copy-metadataCopy metadata from one file to another2,042MIT Filesystem copy-pathcopy-path6,767MIT copy-rangecore::ops::Range et al, but Copy and IntoIterator4,300MIT OR Apache-2.0 Data structures copy-stack-vecA no_std, fixed-capacity, stack-allocated Copy vector for Copy types, with no unsafe code by default.113MIT OR Apache-2.0 Data structures No standard library copy_arenaArena allocator for types implementing Copy7,912MIT copy_arrayvecCopy arrayvec, does what it says on the tin3,441MIT copy_as_bytesSimple stack-based byte encoding for sized types2,818MIT copy_clicopy contains of given file to another.958non-standard copy_cloneA simple 'cp' clone made in Rust1,659MIT Command line utilities copy_confirmerConfirms all files are copied somewhere.6,906AGPL-3.0-or-later Command line utilities Filesystem copy_dirCopy directories recursively in a straightforward and predictable way.4,248,435MIT copy_event_listenerCopy event listener for macOS2,099MIT copy_from_strAn extension trait to copy a string into another string51,017MIT OR Apache-2.0 No standard library Rust patterns copy_implMacro for effortlessly duplicating impl block code across various types in Rust.5,133MIT/Apache-2.0 Development tools copy_in_place[deprecated] a safe wrapper around ptr::copy for efficient copying within slices26,407MIT copy_on_writeCopy-On-Write Rust implementation.6,050MIT copy_spanMacro emitting tokens with the span of another set of tokens.540Apache-2.0 copy_to_outputA small rust library to copy files/folders from the project directory to the output directory67,498MIT OR Apache-2.0 Development tools::Build Utils Filesystem copybook-arrowCOBOL schema conversion to Apache Arrow and Parquet formats.66AGPL-3.0-or-later Data structures Encoding copybook-charsetCharacter set conversion utilities for EBCDIC/ASCII encoding306AGPL-3.0-or-later Data structures Encoding copybook-cliCLI for parsing, decoding, encoding, and verifying COBOL copybook data.22AGPL-3.0-or-later Command line utilities Encoding copybook-cli-determinismDeterminism command execution and output rendering for the copybook CLI.70AGPL-3.0-or-later Command line utilities Encoding copybook-codecDeterministic COBOL copybook codec for EBCDIC/ASCII fixed and RDW records.166AGPL-3.0-or-later Data structures Encoding copybook-codec-memoryReusable memory utilities for copybook codec streaming and parallelism.213AGPL-3.0-or-later Concurrency Data structures copybook-codepageCodepage and unmappable-character policy types for copybook-rs.387AGPL-3.0-or-later Data structures Encoding copybook-contractsShared contracts for copybook-rs feature-flag governance and runtime control.631AGPL-3.0-or-later Configuration Development tools copybook-coreCore COBOL copybook parser, schema, and validation primitives.454AGPL-3.0-or-later Data structures Encoding copybook-corruptionTransfer-corruption detection microcrate for codec heuristics.213AGPL-3.0-or-later Data structures Encoding copybook-corruption-detectorsFocused corruption detectors for transfer-corruption heuristics.259AGPL-3.0-or-later Data structures Parsing tools copybook-corruption-predicatesPure byte predicate helpers for transfer-corruption detection.337AGPL-3.0-or-later Data structures Parsing tools copybook-corruption-rdwSingle-purpose RDW ASCII-heuristic corruption detection.258AGPL-3.0-or-later Data structures Encoding copybook-determinismDeterminism primitives for stable hash/diff comparison in copybook-rs213AGPL-3.0-or-later Data structures Development tools::Testing copybook-dialectDialect contract for ODO min_count semantics494AGPL-3.0-or-later Data structures Parsing tools copybook-errorError types and taxonomy for copybook-rs800AGPL-3.0-or-later Data structures Parsing tools copybook-error-reporterStructured error reporting policies and summaries for copybook-rs493AGPL-3.0-or-later Data structures Parsing tools copybook-fixedFixed-length (LRECL) record framing reader/writer primitives for copybook-rs258AGPL-3.0-or-later Data structures Encoding copybook-governanceGovernance contracts and interoperability map for feature flags and support matrix.71AGPL-3.0-or-later Configuration Development tools copybook-governance-contractsContracts façade for copybook-rs feature flags and support matrix interoperability.597AGPL-3.0-or-later Configuration Development tools copybook-governance-gridGovernance grid mapping between support matrix entries and runtime feature flags.164AGPL-3.0-or-later Configuration Development tools copybook-governance-runtimeRuntime governance state evaluation for support-matrix and feature-flag interoperability.119AGPL-3.0-or-later Configuration Development tools copybook-lexerCOBOL copybook lexical analysis and tokenization primitives.493AGPL-3.0-or-later Parsing tools Text processing copybook-optionsConfiguration option contracts shared across copybook codec workflows258AGPL-3.0-or-later Configuration Data structures copybook-overflowOverflow-safe integer narrowing and bounds arithmetic for copybook-rs566AGPL-3.0-or-later Data structures Parsing tools copybook-overpunchZoned decimal overpunch encode/decode primitives for copybook-rs213AGPL-3.0-or-later Data structures Encoding copybook-rdwRDW framing microcrate with header primitives, reader/writer, and buffered helpers257AGPL-3.0-or-later Data structures Encoding copybook-rdw-predicatesSingle-purpose RDW header ASCII-heuristic predicate.381AGPL-3.0-or-later Data structures Parsing tools copybook-record-ioRecord-format dispatch microcrate bridging fixed and RDW framing primitives213AGPL-3.0-or-later Data structures Encoding copybook-safe-indexPanic-safe division and slice indexing helpers566AGPL-3.0-or-later Data structures Parsing tools copybook-safe-opsPanic-safe conversion and numeric helper operations527AGPL-3.0-or-later Data structures Encoding copybook-safe-textPanic-safe text parsing and string helper functions565AGPL-3.0-or-later Data structures Encoding copybook-sequence-ringDeterministic sequence reordering primitive for parallel copybook pipelines256AGPL-3.0-or-later Concurrency Data structures copybook-support-matrixCOBOL feature support matrix contract and status registry.632AGPL-3.0-or-later Configuration Development tools copybook-utilsPanic-safe utility functions and extension traits for copybook-rs493AGPL-3.0-or-later Data structures Parsing tools copybook-zoned-formatZoned decimal format detection and representation microcrate299AGPL-3.0-or-later Data structures Encoding copycatA simple windows clipboard cli interface. Pipe into it to copy. Pipe from it to paste.17,704MIT Command line utilities copyclippure Rust implemented CLI for get and set clipboard1,511MIT Command line utilities copycopyGlobal double-copy trigger (press Ctrl/Cmd+C twice): capture clipboard content + foreground app info and hand it to your code.252MIT OR Apache-2.0 API bindings Operating systems copydepsFind and copy all the .so / .dll files needed by an executable3,588GPL-3.0-or-later Command line utilities copyforwardFast copy-forward compression for threads: detect repeated substrings across messages and replace with references.362MIT copying_gcSimple copying garbage collector2,604MIT copyitA cross-platform clipboard tool similar to pbcopy/pbpaste44Apache-2.0 Command line utilities Text processing copylessWays to eliminate memcpy calls when using the standard library.12,480,440MIT OR Apache-2.0 copymailCopy emails between mail servers1,603MIT copypastacopypasta is a cross-platform library for getting and setting the contents of the OS-level clipboard.5,002,579MIT / Apache-2.0 copypasta-extA clipboard library providing useful extensions for copypasta.455,529MIT / Apache-2.0 copypasteckA plugin lint for detecting `if` and `match` branches with duplicated conditions or contents.9,985MIT/Apache-2.0 copypatchReusable copy-and-patch JIT substrate: executable memory (W^X), relocation patching, and build-time stencil extraction.…2,452MIT OR Apache-2.0 copyratA tmux plugin for copy-pasting within tmux panes.4,385MIT OR Apache-2.0 Command line utilities copyrepoA tool to fetch and save the contents of a GitHub folder for ingestion into LLMs1,179MIT Command line utilities Development tools copyright_free_songsHigh-quality integration for https://supermaker.ai/music/copyright-free-songs/25MIT copyriteA CLI tool for efficient checksum and copy operations across object stores200MIT copyrsCrossplatform clipboard access11,417MIT copyspanAn alternative to `Range<T>` that has a defined memory layout and implements `Copy`779MIT-0 OR 0BSD Data structures copystr&str with `Copy` semantics.23,586MIT copytreeCopy directory trees113MIT copyupCommand line tool to download license files based on SPDX ids.1,896MIT Command line utilities copyvecA contiguous growable array type, with a fixed, stack-alllocated capacity that implements Copy.21,383MIT OR Apache-2.0 Data structures Memory management coqui-sttSafe wrapper around the Coqui STT C library20,280MPL-2.0 Multimedia::Audio coqui-stt-sysFFI bindings to Coqui STT11,661MPL-2.0 Multimedia::Audio coqui-ttsBindings to the couqi-ai Text-to-Speech python library4,280MIT OR Apache-2.0 API bindings Science corColorize JSON-structured log lines from stdin167MIT Command line utilities Development tools cor-argsA Rust library providing Chain of Responsibility command line argument parsing.4,031MIT OR Apache-2.0 Command-line interface cor_iterCorrelate of two iterators1,755BSD-2-Clause No standard library Rust patterns coratest5,874MIT OR Apache-2.0 cora-cliCLI-first AI code review — BYOK, diff/scan/branch, pre-commit hooks423MIT Command line utilities Development tools cora-matchMulti-pattern fixed-string matcher. Aho-Corasick + SIMD on mmap'd files. NDJSON output for AI agents and pipelines.18MIT Command line utilities Text processing