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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.

faskipThe Faskip Programming Language20Apache-2.0 fasmFallible Async State Machines11,719MIT OR Apache-2.0 FasmaSpectrum of components7,044non-standard faspi🚀 CLI generator for FastAPI projects with hexagonal architecture2,302MIT Command line utilities fasrtA blazing fast, zero-copy subtitle parser and writer for SRT and WebVTT in Rust.27MIT OR Apache-2.0 Encoding Multimedia fastA helper library7,378MIT fast-ableThe world's martial arts are fast and unbreakable; 天下武功唯快不破111,425MIT/Apache-2.0 fast-assetsEasy to use Assets Manager10,029MIT fast-async-mutexIt is a lib which provide asynchronous locking mechanisms (Mutex, RwLock, OrderedMutex and OrderedRwLock)73,891Apache-2.0/MIT Concurrency fast-audio-resamplerFast streaming audio resampler with SIMD-accelerated x86, AArch64 ARM, and RISC-V paths.70MIT Algorithms Multimedia::Audio fast-bernoulliEfficient sampling with uniform probability.9,204MIT OR Apache-2.0 Algorithms Development tools fast-blurhashA faster implementation of the BlurHash algorithm used to generate better looking placeholder for websites and mobile apps.12,013Apache-2.0 fast-boolean-anf-transformFast implementation of the boolean Algebraic Normal Form (ANF) transform3,880MIT OR Apache-2.0 Algorithms Cryptography fast-bpe-rsFast Byte Pair Encoding (BPE) tokenizer with Python bindings powered by PyO3.86Apache-2.0 Algorithms Text processing fast-btreeA fast B-tree implementation ported from tlx library1,514MIT Data structures fast-cannyIndustrial-grade Zero-Allocation SIMD Canny Edge Detector55MIT OR Apache-2.0 Algorithms Multimedia::Images fast-catAn ergonomic macro for efficient string concatenation with a single memory allocation.79,782MIT OR Apache-2.0 Development tools::Procedural macro helpers Text processing fast-cdcA safe place for all your data2,099MPL-2.0 Cryptography fast-certsFast, non-ZK correctness certificates for rollups and computation.624MIT Cryptography fast-cfg可能是世界上最快和最具拓展性的配置文件1,216Apache-2.0 fast-cjsonserde_json Formatter to serialize as OLPC-style canonical JSON387MIT OR Apache-2.0 fast-cleanA tool for quickly clean the target dir72MIT Command line utilities Filesystem fast-clifast.com, but from the terminal2,935MIT fast-cli-coreAPI implementation for running fast.com anywhere5,530MIT fast-cli-keepassA tool to quickly find entries in a keepass database using the command-line1,613MIT fast-clockexplicit api for alternatives to std::time::Instant945MIT OR Apache-2.0 Development tools::Profiling Hardware support fast-commandSimple implementation of `Command` to avoid fork + exec overhead.861MIT Command line utilities Development tools fast-concatFastest macro for concatenating strings.3,086MIT OR Apache-2.0 No standard library Rust patterns fast-concat-macroProcedural macro for fast-concat.3,370MIT OR Apache-2.0 No standard library Rust patterns fast-conventionalMake conventional commits, faster, and consistently name scopes60,985CC0-1.0 Command line utilities Development tools fast-counterA sharded concurrent counter803,699MIT OR Apache-2.0 fast-csv-generatorA Fast way to generate csv file822MIT fast-csv-to-jsonFast CSV to JSON - A simple CLI tool for converting CSV file content to JSON.1,575MIT Command line utilities fast-dav-rsFast CalDAV/CardDAV client with hyper + rustls, HTTP/2, compression, batching, and streaming XML parsing.1,850LGPL-3.0 fast-decimalFast high precision decimal1,664MIT OR Apache-2.0 fast-decisionHigh-performance rule engine252MIT OR Apache-2.0 Algorithms Data structures fast-desThis crate implements DES encryption and NetNTLMv1 hashing in bitsliced form. a 10x-100x improvement in speed can be achieved…115MIT OR Apache-2.0 fast-dhashA fast rust implementation of the perceptual hash dhash1,310,897MIT fast-distancesA rust library to provide distances for multidimensional arrays1,137non-standard Algorithms Mathematics fast-dltAutosar DLT file parsing1,526MIT OR Apache-2.0 fast-downDownload everything fast26,947MIT Asynchronous Concurrency fast-down-cli超级快的下载器命令行界面9,476MIT Command line utilities Network programming fast-down-ffiA convenient and easy-to-use FFI wrapper for fast-down3,174MIT Network programming fast-down-gui超级快的下载器图形化界面102MIT Asynchronous Concurrency fast-dp8AVX-512-accelerated u8 dot product with runtime CPU dispatch36MIT OR Apache-2.0 Algorithms Hardware support fast-erasure-shake-rngFast erasure (forward secure) sponge/duplex based PRNG using the Keccak permutation3,506MIT OR Apache-2.0 Algorithms No standard library fast-factorFast functions for factoring unsigned integers84MIT Algorithms Mathematics fast-fibonacciQuickly find nth fibonacci number with modulo. Supports u64 and BigUint.21,393GPL-3.0-or-later Algorithms fast-findFind fast finds bytes fast1,710MIT fast-flirtFast, thread-safe FLIRT (Fast Library Identification and Recognition Technology) signature parser and matcher.462Apache-2.0 Parsing tools fast-floatFast floating-point number parser.10,455,514MIT OR Apache-2.0 Algorithms No standard library fast-float-compareA lightweight benchmark comparing minimal float comparison implementation against rust_decimal2,671MIT Algorithms Development tools::Profiling fast-float-to-integerConvert floating point values to integer types faster than the standard `as` operator.1,028MPL-2.0 fast-float2Fast floating-point number parser.14,487,830MIT OR Apache-2.0 Algorithms No standard library fast-floatsFast-math wrappers for floats; experimental and unstable; for experiments.8,351MIT OR Apache-2.0 fast-floeHigh performance, spec-compliant Fast Lightweight Online Encryption (FLOE) implementation13Apache-2.0 Cryptography fast-foodA CLI tool to simplify command usage through shortcuts4,217MIT fast-fsHigh-speed async file system traversal library with batteries-included file browser component134MIT Asynchronous Filesystem fast-gicpHigh-level Rust API for fast_gicp point cloud registration library1,462BSD-3-Clause Algorithms External FFI bindings fast-gicp-sysLow-level FFI bindings for fast_gicp C++ library1,662BSD-3-Clause Algorithms External FFI bindings fast-gitA fast and efficient Git/GitHub CLI wrapper with custom aliases support50MIT Command line utilities Development tools fast-git-promptA fast git prompt for zsh and bash.5,406MIT fast-globA high-performance glob matching crate for Rust2,370,560MIT Filesystem fast-graphA fast, lightweight and extensible implementation of a graph data structure.17,849Apache-2.0 Data structures Database interfaces fast-grepIndexed regex search. 6-25x faster than ripgrep on large codebases via sparse n-gram index, position masks, and mmap'd posting…78MIT Command line utilities Text processing fast-heatmapBlazing fast crate to generate heatmap images with data points2,067MIT Algorithms No standard library fast-hex-liteHigh-performance hex encoding and decoding with zero allocations, no_std support and SIMD acceleration73Apache-2.0 Algorithms Encoding fast-hnswPure-Rust implementation of Hierarchical Navigable Small World (HNSW) approximate nearest-neighbour search52,976MIT fast-html-parserSIMD-optimized HTML parser for web scraping — fast tokenization, CSS selectors, XPath, encoding detection105MIT OR Apache-2.0 Parser implementations Web programming fast-interleaveFast interleaving and de-interleaving methods39,860MIT Algorithms Multimedia::Audio fast-jitLua-inspired JIT for fast, dynamic code execution.355GPL-3.0-or-later OR MIT Parsing tools fast-json-stringifyCompile a JSON Schema into a fast JSON serializer37MIT Data structures Encoding fast-jumpA blazing-fast fuzzy directory jumper55MIT Command line utilities fast-kdK-dimensional tree in Rust for fast geospatial indexing and nearest neighbors lookup2,795MIT OR Apache-2.0 fast-layerWIP: A fast WebAssembly-based layer for high-performance MapLibre/Mapbox74MIT Development tools Graphics fast-license-checkerBlazing-fast license header verification for your codebase26MIT OR Apache-2.0 Command line utilities Development tools fast-listA doubly linked list using SlotMap for improved cache locality, and to solve the ABA problem.12,104Apache-2.0 Data structures Database interfaces fast-loggerFast logger for Rust18,497LGPL-3.0-or-later fast-lruA fast, 100% safe, stack based LRU cache6,070MIT OR Apache-2.0 fast-macroHigh-performance SIMD mathematics, optimized GPU computation, and vectorized algorithms3,251MIT OR Apache-2.0 Algorithms Mathematics fast-mapMap-like structs13,056MIT fast-map-deriveMaplike using match6,856MIT fast-mathFast, approximate versions of mathematical functions.7,610,841MIT/Apache-2.0 fast-md5Optimized MD5 with hand-written x86_64 and aarch64 assembly cores, plus a portable Rust fallback.1,459BSD-2-Clause Cryptography No standard library fast-modulofast modulo calculation13,640AGPL-3.0-or-later Hardware support No standard library fast-moshA fork of fast-ssh to quickly connect to your servers by navigating through your SSH config, using mosh.2,319MIT Command line utilities Configuration fast-mvtFast Mapbox Vector Tile (MVT) reader and writer24,471MIT OR Apache-2.0 Science::Geospatial fast-natAn OSI layer 3 Network Address Table built for speed1,992GPL-3.0 fast-natordNatural ordering for Rust38MIT fast-neural-networkA heavily parallelized neural network library designed for speed and flexability.11,717GPL-2.0 fast-nntRust implementation of the SplitsTree NeighborNet algorithm.1,703GPL-3.0 fast-noise-lite-rsFastNoise Lite written in rust2,478Apache-2.0 OR MIT fast-notebook-clear-outputA reasonably fast jupyter notebook clear output tool.1,594MIT fast-ordered-bufferA faster buffering implementation for asynchronous streams, trading off memory usage for speed.748MIT OR Apache-2.0 Algorithms Data structures fast-osmpbfFast OSM PBF parser for Rust630MIT OR Apache-2.0 API bindings Concurrency fast-page-allocatorThis crate provides a robust implementation of a Buddy Allocator, designed for environments where the standard library is…18MIT fast-paillierOptimized Paillier encryption scheme47,664MIT OR Apache-2.0 Algorithms Cryptography fast-positSoftware implementation of the Posit floating point format1,134LGPL-3.0 Algorithms Mathematics fast-powiProvides fast exponentiation for numeric types40MIT Algorithms Mathematics fast-pullPull everything fast24,383MIT Asynchronous Concurrency fast-registry-jsonSIMD-accelerated JSON scanner for indexing npm registry packuments1,825MIT fast-repo-checkupGit history diagnostics for triaging an unfamiliar codebase before you read code25MIT OR Apache-2.0 Command line utilities Development tools fast-richA Rust port of Python's Rich library for beautiful terminal formatting361MIT OR Apache-2.0 Command-line interface Development tools fast-rmFast Trash-backed parallel deletion for large directory trees56MIT Command line utilities Filesystem fast-robotsA zero-copy robots.txt parser with SIMD-accelerated byte scanning.140MIT OR Apache-2.0 Command line utilities Parser implementations fast-router简化web开发的一个路由，参考了go语言gin的设计2,931non-standard fast-rpcstreaming JSON RPC over TCP2,001MPL-2.0 fast-rustc-ap-arenaAutomatically published version of the package `arena` in the rust-lang/rust repository from commit…7,278MIT / Apache-2.0 fast-rustc-ap-graphvizAutomatically published version of the package `graphviz` in the rust-lang/rust repository from commit…8,248MIT / Apache-2.0 fast-rustc-ap-rustc_astAutomatically published version of the package `rustc_ast` in the rust-lang/rust repository from commit…4,477MIT / Apache-2.0 fast-rustc-ap-rustc_ast_prettyAutomatically published version of the package `rustc_ast_pretty` in the rust-lang/rust repository from commit…3,213MIT / Apache-2.0 fast-rustc-ap-rustc_attrAutomatically published version of the package `rustc_attr` in the rust-lang/rust repository from commit…2,651MIT / Apache-2.0 fast-rustc-ap-rustc_data_structuresAutomatically published version of the package `rustc_data_structures` in the rust-lang/rust repository from commit…7,782MIT / Apache-2.0 fast-rustc-ap-rustc_errorsAutomatically published version of the package `rustc_errors` in the rust-lang/rust repository from commit…3,916MIT / Apache-2.0 fast-rustc-ap-rustc_featureAutomatically published version of the package `rustc_feature` in the rust-lang/rust repository from commit…3,865MIT / Apache-2.0 fast-rustc-ap-rustc_fs_utilAutomatically published version of the package `rustc_fs_util` in the rust-lang/rust repository from commit…3,962MIT / Apache-2.0 fast-rustc-ap-rustc_indexAutomatically published version of the package `rustc_index` in the rust-lang/rust repository from commit…8,331MIT / Apache-2.0 fast-rustc-ap-rustc_lexerAutomatically published version of the package `rustc_lexer` in the rust-lang/rust repository from commit…5,081MIT / Apache-2.0 fast-rustc-ap-rustc_macrosAutomatically published version of the package `rustc_macros` in the rust-lang/rust repository from commit…7,291MIT / Apache-2.0 fast-rustc-ap-rustc_parseAutomatically published version of the package `rustc_parse` in the rust-lang/rust repository from commit…1,819MIT / Apache-2.0 fast-rustc-ap-rustc_sessionAutomatically published version of the package `rustc_session` in the rust-lang/rust repository from commit…3,241MIT / Apache-2.0 fast-rustc-ap-rustc_spanAutomatically published version of the package `rustc_span` in the rust-lang/rust repository from commit…6,770MIT / Apache-2.0 fast-rustc-ap-rustc_targetAutomatically published version of the package `rustc_target` in the rust-lang/rust repository from commit…3,882MIT / Apache-2.0 fast-rustc-ap-serializeAutomatically published version of the package `serialize` in the rust-lang/rust repository from commit…8,772MIT / Apache-2.0 fast-rustupRustup, but the download and untar happen concurrently2,330MIT OR Apache-2.0 fast-scpA fast and simple scp CLI tool8,534MIT fast-sdeHigh-performance Monte Carlo simulation for stochastic differential equations in quantitative finance330MIT OR Apache-2.0 Mathematics Science fast-search⚡ Blazingly fast, cross-platform file search & duplicate finder — usable as a library or CLI84MIT Command line utilities Filesystem fast-shardHigh-performance configurable sharding library with SIMD optimizations2,601MIT OR Apache-2.0 Algorithms Caching fast-shlibdepsA fast ELF shared library dependency analyzer for Debian-based systems1,428CC0-1.0 fast-slamSLAM : Simultaneous Localization and Mapping. 'Fast SLAM' implemntation. Numerically and dimensionally generic implementation…12,238MIT Science Science::Robotics fast-slice-utilsHighly optimized slice utilities using SIMD instructions when available16,505MIT Algorithms No standard library fast-smazPure Rust SMAZ compression implementation3,622MIT Compression fast-smrToward fast, wait-free, portable, and robust memory reclamation.233,238MIT Algorithms Concurrency fast-socks5Fast SOCKS5 client/server implementation written in Rust async/.await (tokio)1,987,944MIT Asynchronous Authentication fast-sparse-merkle-treeFast Sparse Merkle Tree (SMT) library in Rust, using TurboSHAKE128 as default hash function255MIT Algorithms Cryptography fast-spsc-queueFast lockless single-producer single-consumer queue1,745MIT fast-srgb8Very fast conversions between linear float and 8-bit sRGB (with no_std support).9,579,730MIT OR Apache-2.0 OR CC0-1.0 Graphics Mathematics fast-sshQuicky connect to your servers by navigating through your SSH config.14,738MIT Command line utilities Configuration fast-ssim2Fast SSIMULACRA2 image quality metric with SIMD acceleration19,509BSD-2-Clause Algorithms Multimedia::Images fast-statsRust library for efficient calculation of statistics from streaming data5,256MIT fast-stealAn ultra-fast multi-threaded task scheduler with fine-grained work stealing37,351MIT Concurrency No standard library fast-stmPerformance-focused implementation of software transactional memory. Allows composable atomic operations.4,503MIT OR Apache-2.0 Concurrency fast-strA flexible, easy-to-use, immutable, efficient `String` replacement for Rust.7,200MIT Data structures Text processing fast-strip-ansiA performance-optimized, low-allocation ANSI escape sequence stripper20,128Apache-2.0 OR MIT fast-surface-netsA fast, chunk-friendly implementation of Naive Surface Nets on regular grids.33,540MIT OR Apache-2.0 fast-svd-3x3Quick Singular Value Decomposition for 3x3 matrix. SIMD Supported.1,858MIT fast-sweepingUnsigned Distance Fields using Fast Sweeping Method478EUPL-1.2 Computer vision Multimedia::Images fast-takImplementation of the abstract strategy board game Tak13,852MIT fast-telemetryHigh-performance, cache-friendly telemetry primitives and export formats for Rust5,887Apache-2.0 fast-telemetry-exportExport adapters for fast-telemetry metrics: DogStatsD, OTLP, ClickHouse, span export, and stale-series sweeping1,902Apache-2.0 fast-telemetry-macrosDerive macros for fast-telemetry metric export and enum labels5,893Apache-2.0 fast-threadpoolThread-pool implementation optimized to minimize latency.15,556MIT fast-thumbhashA fast ThumbHash encoder/decoder — 10x+ faster drop-in replacement23,539MIT Encoding Multimedia::Images fast-tiff-libLazy, memory-mapped reader/writer for TIFF files: IFD indexing, ImageJ + OME-TIFF metadata parsing, and per-frame strip decoding.224MPL-2.0 Multimedia::Images Parser implementations fast-tlshLibrary to generate / parse / compare TLSH locality sensitive hashes22,954Apache-2.0 OR MIT Algorithms Encoding fast-transcriptFast local transcription for large lectures with NVIDIA Parakeet ONNX24MIT Command line utilities Multimedia::Audio fast-transferA fast tool for streaming files over a network492MIT fast-trapProvide a framework for bare-metal trap handling, aiming at ensuring performance while reusing code.8,437MulanPSL-2.0 OR MIT Embedded development Hardware support fast-umapConfigurable UMAP (Uniform Manifold Approximation and Projection) in Rust3,151MIT Mathematics Science fast-unescape'unescapes' a escaped string with escape sequences into literal one30LGPL-3.0-or-later No standard library No standard library::No dynamic allocation fast-unicode-general-categoryWork with Unicode General Category.2,840ISC fast-uuid-v7A high-performance Rust library for generating UUID v7 compatible identifiers.9,324MIT fast-vadExtremely fast voice activity detection in Rust with Python bindings and streaming mode support.415MIT OR Apache-2.0 fast-versionFast version requirenments and matching4,147MIT fast-version-coreCore definitions for the fast-version crate8,011MIT fast-version-deriveDerive macro for the fast-version crate6,139MIT fast-voxel-traversalFast voxel traversal iterators for both 2D and 3D4,662MIT fast-walkerMulti-threaded directory walker, with async support8,476MPL-2.0 fast-web简化web开发，降低rust开发web项目的门槛，参考 rust 的 reset-router 和 golang 的 gin 的设计2,930non-standard fast-webpFast WebP encoder for Rust image buffers and proxy image payloads.70MIT Encoding Multimedia::Images fast-xmlHigh performance xml reader and writer3,015,722MIT Encoding Parser implementations fast-yaml-cliFast YAML command-line processor with validation and linting281MIT OR Apache-2.0 Command line utilities Development tools fast-yaml-coreCore YAML 1.2.2 parser and emitter1,630MIT OR Apache-2.0 Encoding Parsing tools fast-yaml-ffiFFI utilities for fast-yaml bindings398MIT OR Apache-2.0 API bindings Parsing tools fast-yaml-linterYAML linter with rich diagnostics696MIT OR Apache-2.0 Development tools Parsing tools fast-yaml-parallelMulti-threaded YAML processing with work-stealing parallelism663MIT OR Apache-2.0 Concurrency Parsing tools fast2sA fast Traditional Chinese to Simplified Chinese conversion library. Built with FST, faster than most of other libraries.141,883MIT Internationalization (i18n)Localization (L10n) fast32Base32 and base64 encoding in Rust. Primarily for integer (u64, u128) and UUID identifiers, as well as arbitrary byte arrays.107,701MIT Algorithms Encoding fast3dA Rust library for N64 Fast3D Graphics Rendering13,446non-standard fast3d-gbiF3D GBI Assembler5,466non-standard fast3d-glium-rendererGlium renderer for fast3d-rs9,865non-standard fast3d-wgpu-rendererWGPU renderer for fast3d-rs12,166non-standard fast42A super fast 42API connector 🚀1,585MIT API bindings fast6502WIP Fast and accurate 6502 emulator.1,555MIT OR Apache-2.0 Emulators No standard library fast_arraysCan be used to perform vectorized calculations on arbitrarily sized 1D and 2D arrays with AVX-512 acceleration.28,742Apache-2.0 fast_assertA faster assert!1,219MIT OR Apache-2.0 Rust patterns fast_async_traitFast async traits for Rust2,869MIT fast_async_trait_procfast_async_trait_proc3,395MIT fast_augFast data augmentation for text3,085MIT fast_brainfuckA Brainfuck JIT compiler5,709MIT fast_cellular_automataFor cellular automata (totalistic and semi-totalistic) and other, similar uses. Uses parallel processing to update state very…1,531MIT Simulation fast_chachaCPU-optimized ChaCha20 implementation with rust fallbacks2,087Apache-2.0 Algorithms Cryptography fast_chemailCheck email address26,952,815MPL-2.0 fast_clapA simple to use, efficient, and full-featured Command Line Argument Parser8,633MIT OR Apache-2.0 Command-line interface fast_clap_deriveParse command line argument by defining a struct, derive crate.8,707MIT OR Apache-2.0 Command-line interface Development tools::Procedural macro helpers fast_collectionsnoheap zero copy collections66,565MIT fast_configA small and simple multi-format crate to handle config files12,826MIT Configuration fast_config_deriveDerive macro for fast_config400MIT Configuration fast_delegatedelegate struct easy3,624MIT