BROWSE A-Z
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.
fast_delegate_derivedelegate struct easy3,856MIT
fast_deleteFaster file deletion written in Rust, alternative to rm1,713non-standard
fast_enum_conversionZerocost conversion between enums1,236MIT
fast_enum_conversion_macroZerocost conversion between enums1,542MIT
fast_escapeSimple, fast escaping of characters.3,931MITNFA
fast_fairIt's my first library on crates.io!1,819MIT
fast_filesFile directory storage UI for fast access and sorting2,592MIT OR Apache-2.0
fast_finderFast Find is a cli written in rust using rayon parrellism for super fast results.4,228MIT
fast_firestorefast, plug and play firestore lib11,214MIT
fast_fmtThis crate provides faster, more flexible and more correct alternative to core::fmt11,299MITNFA
fast_forwardQuering collections blazing fast.2,774MIT
fast_fpFloating point fast-math optimizations7,278MIT OR Apache-2.0
fast_h2mHigh-performance HTML to Markdown converter156MIT
fast_h2m_pyPython bindings for fast_h2m96MIT
fast_hammingA library that provides functions to encode/decode 16-byte byte-arrays using a Hamming Code1,518Apache-2.0
fast_hilbertFast Hilbert 2D curve computation using an efficient Lookup Table (LUT).185,006MIT
fast_html2mdA fast html2md crate for rust278,296MIT
fast_html5everHigh-performance browser-grade HTML5 parser122,358MIT OR Apache-2.0
fast_id_mapfast map2,110MIT
fast_image_resizeLibrary for fast image resizing with using of SIMD instructions16,364,040MIT OR Apache-2.0
fast_inputFast and easy input from standard in, made for competetive programming11,411MIT
fast_inv_sqrtFast inverse square root algorithm implementation.10,375WTFPL OR MIT OR Apache-2.0
fast_ioLibrary crate to read and write &str and types implementing the copy trait into files11,510Apache-2.0
fast_loaded_dice_rollerRust implementation of the novel Fast Loaded Dice Roller algorithm (https://arxiv.org/pdf/2003.03830.pdf)9,525MIT
fast_logRust async log High-performance asynchronous logging334,238MIT
fast_markup5everCommon code for xml5ever and html5ever116,563MIT OR Apache-2.0
fast_morphologyFast morphological operations for images22,017BSD-3-Clause OR Apache-2.0
fast_motion_planningThe crate provides a solver api which samples from motion primitives in order to efficiently generate trajectories which avoid…1,579MIT
fast_new_typeA proc_macro attribute to implement common traits for a custom type wrapping other.12,478Unlicense
fast_ntfsForked a low-level NTFS filesystem library31MIT OR Apache-2.0
fast_odeFast Runge-Kutta implementation for solving ordinary differential equations.11,408MIT OR Apache-2.0
fast_pathsFast shortest path calculations on directed graphs made possible by pre-processing the graph using Contraction Hierarchies24,104MIT/Apache-2.0
fast_plA plane-sweep implementation to compute persistence landscapes3,701AGPL-3.0-or-later
fast_poissonAn implementation of Bridson's algorithm for fast Poisson disk sampling49,446MIT OR Apache-2.0
fast_polynomialFaster polynomial evaluation using Estrin's Scheme to exploit instruction-level parallelism56,920MIT
fast_poolThe Fast Pool based on channel122,312Apache-2.0
fast_qrGenerates optimized QRCode332,214MIT
fast_radix_trieMemory-efficient trie data structures based on radix tree3,365MIT
fast_randsNon-cryptographically, but quite fast, RNG implementations678MIT OR Apache-2.0
fast_reqwesthigher level HTTP client library1,597MIT OR Apache-2.0
fast_rsyncAn optimized implementation of librsync in pure Rust.111,714Apache-2.0
fast_runnerA tool to search files2,764Apache-2.0
fast_scraperHTML parsing and querying with CSS selectors7,997ISC
fast_setA set of usize with O(1) creation, add, remove, contains, and clear functions.2,779AGPL-3.0-or-later
fast_slabfast slab allocator1,018MIT
fast_streamstream1,409MIT
fast_symspellSpelling correction & Fuzzy search22,715MIT
fast_textBinding for Facebook's FastText package.6,565MIT
fast_timeAn efficient low-precision timestamp source suitable for high-frequency querying38,166MIT
fast_transposeFast image and matrix transpose16,242BSD-3-Clause OR Apache-2.0
fast_trieA memory efficient trie library.3,681MIT
fast_trie_treeA fast `TrieTree` for multiple data types5,182MIT
fast_tupleThis is a Rust procedural macro library that provides an easy way to construct and annotate tuples.5,923Unlicense
fast_uaparserRegex-based parser for User-Agent request headers8,578Apache-2.0
fast_utcSimple & fast 64 bit UTC time types279MIT OR Apache-2.0
fast_vkRelatively low-level VK API library designed for millions requests per second23,107MIT
fast_websocket_clientTokio-native WebSocket client for Rust. High-throughput, low-latency, callback-driven, proxy-ready.483,222Apache-2.0
fast_whitespace_collapseCollapse consecutive spaces and tabs into a single space using SIMD826MIT
fastaTools for FASTA reading, writing and indexing.7,378MIT OR Apache-2.0
fasta-cleanerTransform fasta files by upper-casing all sequence characters and removing non-ACGT sequence characters.2,436BSD-2-Clause
fasta-filterFilter a (multi-sequence) FASTA file and output a subset of the records on STDOUT1,236MIT
fasta-statsSimple descriptive statistics on FASTA (biological sequence) data4,546MIT
fasta_rsMulti purpose fasta toolkit353Apache-2.0
fasta_splitSplit a fasta file into several fasta files4,550non-standard
fasta_toolsSome tools that are 'internal' for now because they are insufficiently refined and unstable, but which are used by other 'public'…29,432MIT
fasta_windowsMake quick statistics in windows from a fasta file.2,941MIT
fastagentfastagent493MIT
fastallocHigh-performance memory pooling library with type-safe handles, predictable latency, and zero fragmentation. Perfect for game…671MIT
fastantA drop-in replacement for `std::time::Instant` that measures time with high performance and high accuracy powered by Time Stamp…10,816,300MIT
fastanvilMinecraft Anvil library83,207MIT OR Apache-2.0
fastapiCompile time generated OpenAPI documentation for Rust1,880MIT OR Apache-2.0
fastapi-configConfig for controlling fastapi's various aspects1,445MIT OR Apache-2.0
fastapi-coreCore types and traits for the FastAPI Rust framework6,221MIT OR Apache-2.0
fastapi-genCode generation implementation for fastapi1,302MIT OR Apache-2.0
fastapi-httpZero-copy HTTP/1.1 parser for fastapi_rust6,126MIT OR Apache-2.0
fastapi-macrosProcedural macros for fastapi_rust6,194MIT OR Apache-2.0
fastapi-openapiOpenAPI 3.1 types and schema generation for fastapi_rust6,264MIT OR Apache-2.0
fastapi-outputAgent-aware rich console output for fastapi_rust15,607MIT OR Apache-2.0
fastapi-routerTrie-based router for fastapi_rust6,359MIT OR Apache-2.0
fastapi-rustUltra-optimized Rust web framework inspired by FastAPI6,021MIT OR Apache-2.0
fastapi-typesShared types for the FastAPI Rust framework6,385MIT OR Apache-2.0
fastapproxFast approximate versions of certain functions that arise in machine learning84,708MIT
fastarFast tar archive creation for HDDs9,434GPL-3.0
fastarenaA zero-dependency, bump-pointer arena allocator with RAII transactions, nested savepoints, optional LIFO destructor tracking, and…237MIT
fastarpFast ARP network scanner for local subnet host discovery42MIT
fastarp-coreFast ARP scanning library for local subnet host discovery101MIT
fastarsUltra-fast QC and trimming for short and long reads22MIT
fastatomstructA Python package for the analysis of atomic structures and dynamics10,274GPL-3.0
fastatsCLI to generate FASTA file statistics (masking, GC content, etc.).404Apache-2.0
FastatsplitA modest program written in rust made to store wanted and unwanted FASTA sequences to different FASTA files. Born from the…1,393MIT
fastaxMake phylogenetic trees and lineages from the NCBI Taxonomy database9,889MIT
fastbaps-coreFast Bayesian hierarchical clustering of bacterial populations (core algorithms)42MIT
fastbitA fast, efficient, and pure Rust bitset implementation for high-performance data indexing and analytics.7,208MIT
fastbloomThe fastest Bloom filter in Rust. No accuracy compromises. Full concurrency support and compatible with any hasher.15,964,734MIT OR Apache-2.0
fastbloom-rsSome fast bloom filter implemented by Rust for Python and Rust!298,532Apache-2.0
fastblurLinear-time gaussian blur18,677MIT
fastboop-bootprostd boot profile compilation and optimization helpers for fastboop.114GPL-3.0-only
fastboop-cliCLI for non-mutating live boots on fastboot-class devices.286GPL-3.0-only
fastboop-coreCore profile matching and boot orchestration primitives for fastboop.737GPL-3.0-only
fastboop-fastboot-rusbrusb transport adapter for fastboop fastboot sessions.401GPL-3.0-only
fastboop-fastboot-webusbWebUSB transport adapter for fastboop fastboot sessions.294GPL-3.0-only
fastboop-schemaSchema types for fastboop device and boot profiles.809GPL-3.0-only
fastboop-stage0-generatorBuilds fastboop stage0 payloads from upstream rootfs artifacts.407GPL-3.0-only
fastboot-protocolFastboot protocol implementation12,708MIT OR Apache-2.0
fastbreakA formal methods-inspired specification language combining Alloy, TLA+, Cucumber, and Design by Contract147MIT
fastbufsingle-thread-oriented very fast byte buffer40,752MIT
fastcA safe C-like language that compiles to C11105MIT
fastc-lspLanguage Server Protocol implementation for FastC21MIT
fastcacheA performant but not-so-accurate time and capacity based cache for Rust.697,026MIT OR Apache-2.0
fastcatFast string concatenation, with const-str support built in.43MIT OR Apache-2.0
fastcat-macroProcedural macro powering fastcat.54MIT OR Apache-2.0
fastcdcFastCDC (content defined chunking) in pure Rust.1,084,163MIT
fastcdc-altFastCDC (content defined chunking) implementation in pure Rust with an alternative API to the original crate8,390MIT
fastcertA simple zero-config tool for making locally-trusted development certificates261BSD-3-Clause
fastcgiFastCGI library written in pure Rust38,114MIT
fastcgi-clientFastcgi client implemented for Rust.62,625Apache-2.0
fastcgi-connectFastcgi client implemented for Rust.22Apache-2.0
fastcgi-healthcheckFastcgi healthcheck, power by kvarn-fastcgi-client, axum and tokio.1,489GPL-3.0
fastcgi-sdkFastCGI SDK for Rust7,868BSD-3-Clause
fastcgi-serverfastcgi-server883Apache-2.0 OR MIT
fastchemailCheck email address6,364MPL-2.0
fastchrFaster memchr using SIMD intrinsics6,410MIT OR Apache-2.0
fastcmpA fast byte slice comparison library20,416MIT
fastcodeFast to writing your code with extension function and popular crates.286MIT
fastcomments-sdkOfficial FastComments Rust SDK (Typed API Client & Utilities)214MIT
fastcommitAI-based command line tool to quickly generate standardized commit messages.1,447MIT
fastcontainsfastcontains, the faster contains778MIT
fastcountan incredibly fast, incredibly useless counter89GPL-3.0-or-later
fastcpA fork of smoltcp, tuned for ultra-low-latency networking.1650BSD
fastcp-clia fast cp wrapper using --reflink=always88GPL-3.0-or-later
fastcryptoCommon cryptographic library used at Mysten Labs1,162,344Apache-2.0
fastcrypto-deriveCollection of useful cryptographic macros1,107,759Apache-2.0
fastcrypto-tblsThreshold BLS and DKG protocols1,508Apache-2.0
fastcrypto-zkpzk-proof library used at Mysten Labs10,891Apache-2.0
fastcsvA fast SIMD parser for CSV files as defined by RFC 4180, based on simdcsv (C++)83MIT
fastcurve_3dLibrary for 3D and 2D fast curve generation40,876non-standard
fastcwtRust-lang Continuous Wavelet Transform(CWT) library inspired by fCWT.12,634MIT OR Apache-2.0
fastdateRust fast date carte347,773Apache-2.0
fastdedupA fast and memory-efficient FASTX PCR deduplication tool110MIT
fastdfsRust client for FastDFS distributed file system72MIT OR Apache-2.0
fastdivPerform fast division by a runtime constant.29,872MIT
fastdivideFastdivide is a partial port of libdivide. It makes it possible to reduce the cost of divisions.17,999,746zlib-acknowledgement OR MIT
fastdlThis repository is deprecated, Go to libfastdl instead3,596MPL-2.0
fastduParallel, cross-platform version of du369MIT
fastedgeFastEdge Rust SDK that helps you to create edge cloud application using WASM8,917Apache-2.0
fastedge-deriveProcedural macros for the FastEdge Rust SDK9,591Apache-2.0
fastembedLibrary for generating vector embeddings, reranking locally.2,237,229Apache-2.0
fastemporalLuxon + Temporal, but in pure Rust — 100× faster, zero GC39MIT OR Apache-2.0
fastenA set of scripts to run basic analysis on fastq files16,462MIT
fasterExplicit SIMD for humans26,103MPL-2.0
faster-beamerAn incremental compiler for LaTeX Beamer slides13,751GPL-3.0-or-later
faster-buildSimple and smart language-agnostic task runner5,435GPL-3.0-or-later
faster-chars-countLibrary for counting length of chars faster than Chars::count()8,214MIT
faster-fishersRust version of Scipy's Fisher exact test.4,003MIT
faster-hexFast hex encoding.50,704,134MIT
faster-hex-thiserrorFast hex encoding.249MIT
faster-pestA generator for high-performance Pest parsers, bringing your grammar to the next level9,217GPL-3.0-or-later
faster-pest-deriveproc-macro for faster-pest8,566GPL-3.0-or-later
faster-pest-generatorproc-macro for faster-pest2,466GPL-3.0-or-later
faster-rsRust wrapper for FASTER by Microsoft Research29,203MIT
faster-stunFast and zero-cost stun message decoder and encoder.42,795GPL-2.0-or-later
faster-whisper-rsHigh-level rust bindings to the faster-whisper python api.4,774MIT OR Apache-2.0
faster_bloomA standard and scalable Bloom filter implementation in Rust with configurable error tolerance and automatic scaling20MIT
faster_kvsRust wrapper for FASTER by Microsoft Research1,888MIT
faster_pathAlternative to Pathname2,562MIT OR Apache-2.0
faster_pathsBlazingly fast shortest paths with (parallel) preprocessing via contraction hierarchies and hub labeling18MIT OR Apache-2.0
faster_poissonFast Poisson disk sampling2,239MIT
fasterpHigh-performance FASTQ preprocessing tool - often faster than fastp with the same interface108MIT
fastersFIX & FAST (FIX Adapted for STreaming) in pure Rust.8,292MIT
fasters_deriveCode generation for Fasters5,122MIT
fastevalFast evaluation of algebraic expressions300,069MIT
fasteval-replFast evaluation of algebraic expressions1,780MIT
fasteval2Fast evaluation of algebraic expressions31,854MIT
fasteval3Fast evaluation of algebraic expressions3,035MIT
fastexcelA fast excel reader for Rust and Python2,527MIT
fastexifExif metadata reader.25MIT
fastexpr-rsA tiny, fast Javascript expression parser3,388MIT
fastfetch-sysA neofetch like system information tool697MIT
fastfibonacciFast Fibonacci encoding/decoding8,854 GPL-3.0-or-later
fastfield_codecsFast field codecs used by tantivy1,358,571MIT
fastfileSequentially read and write files as fast as possible1,853MIT
fastfindFast parallel find — a drop-in GNU find replacement for AI agents and large codebases81MIT OR Apache-2.0
fastfloatFast-math wrapper and convenient numeric functions for approximate floating point operations in Rust6,304MIT OR Apache-2.0
fastforgeThe ultimate all-in-one app packaging and distribution tool296MIT
fastformatFast world data converter1,348MIT
fastforwarda library for implementing custom reverse proxies13,537MIT
fastfwdFast-forward the workflow25Apache-2.0
fastga-rsRust bindings for FastGA genome aligner with extended CIGAR support497MIT
fastgeotoolkitA novel high-performance geospatial analysis framework with advanced route density mapping algorithms17,993MIT
fastgifMakes GIFs fast1,929MIT
fastgptA CLI client for Kagi's FastGPT API2,966MIT
fastgraphGraph abstraction providing a generic interface and powerful parallelized traversals.5,549MIT/Apache-2.0
fastgrepFast parallel grep with SIMD-accelerated search and trigram indexing334MIT OR Apache-2.0
fastgymA set of fast gym environements1,677MIT
fasthashA suite of non-cryptographic hash functions for Rust.756,542Apache-2.0
fasthash-forkA suite of non-cryptographic hash functions for Rust - Forked to release current code-base.3,901Apache-2.0
fasthash-sysA suite of non-cryptographic hash functions for Rust.773,499Apache-2.0
fasthash-sys-forkA suite of non-cryptographic hash functions for Rust.4,911Apache-2.0
fasthexa very fast hex dumper183GPL-3.0-or-later
fasthooksBlazing fast Git hooks manager written in Rust. Drop-in replacement for Husky with 27x faster startup.49MIT