Data structures 10,114 crates

esrsA Prima.it-opinionated library to achieve cqrs/es120,712MIT OR Apache-2.0AsynchronousData structures disruptorLow latency inter-thread communication via a ringbuffer (inspired by the LMAX Disruptor).120,666MITConcurrencyData structures index-mapA map with automatically generated usizes as keys120,397MITData structuresNo standard library bpe-openaiPrebuilt fast byte-pair encoders for OpenAI.119,787MITAlgorithmsData structures awintArbitrary width integers119,065MIT OR Apache-2.0AlgorithmsData structures awint_extExternally allocating `awint` functionality118,791MIT OR Apache-2.0AlgorithmsData structures static-tomlEffortlessly embed TOML files into your Rust code as static data with custom data structures.118,502MITConfigurationData structures vortex-sessionSession object for Vortex118,282Apache-2.0CompressionData structures awint_macrosAccompanying procedural macros to `awint`117,169MIT OR Apache-2.0AlgorithmsData structures suxA pure Rust implementation of succinct and compressed data structures116,231Apache-2.0 OR LGPL-2.1-or-laterCompressionData structures bytesstrAn immutable reference-counted UTF8 String115,985MITData structures triple_arenaRegular, Chain, Surjection, and Ordered Arenas supporting non-Clone types, deletion, and more115,664MIT OR Apache-2.0Data structuresMemory management array_map_deriveMap backed array for fixed size keys with O(1) performance115,568MIT OR Apache-2.0Data structuresEmbedded development rust-ocppocpp 1.6, 2.0.1 and 2.1 libraries115,427MIT OR Apache-2.0AccessibilityData structures wtoolsSingle entry-point for collection utilities. Re-exports collection_tools: variadic constructors and unified HashMap/HashSet/Vec…114,091MITData structuresDevelopment tools cache-advisorscan-resistant concurrent cache eviction manager113,368MIT OR Apache-2.0AlgorithmsCaching chewdataExtract Transform and Load data111,868MIT OR Apache-2.0Data structuresEncoding ndhistogrammulti-dimensional histogramming for Rust111,363MIT OR Apache-2.0Data structuresMathematics rlgA near-lock-free structured logging library for Rust. Sub-microsecond ingestion via a 65k-slot ring buffer (LMAX Disruptor…111,187MIT OR Apache-2.0AsynchronousData structures dbutilsUtils for developing databases108,696MIT OR Apache-2.0Data structuresDatabase implementations leaseObject pool that leases values and automatically returns them with async support108,661MIT OR Apache-2.0AsynchronousCaching balanced-tree-indexUtilities for constant-time manipulation of a complete binary tree with a flat in-memory representation.108,541GPL-3.0CryptographyData structures bipbufferA Rust implementation of Simon Cooke's Bip-Buffer108,121Apache-2.0Data structures mc-oblivious-traitsTraits and interfaces for components related to Oblivious data structures107,350GPL-3.0CryptographyData structures lance-test-macrosA columnar data format that is 100x faster than Parquet for random access.106,832Apache-2.0Data structuresDatabase implementations hash_ringConsistent Hashing library for Rust106,143MITData structures orderedA wrapper for adding arbitrary partial/total order to a type.105,560CC0-1.0Data structures fpdecDecimal floating-point arithmetic.105,389non-standardData structuresMathematics static_aabb2d_indexFast static spatial index data structure for 2D axis aligned bounding boxes104,296MIT OR Apache-2.0AlgorithmsData structures evicting_cache_mapAn Evicting LRU cache supporting prune hooks104,283BSD-2-ClauseData structuresNo standard library gpt_disk_typesGPT (GUID Partition Table) disk data types no_std library103,480MIT OR Apache-2.0Data structuresEmbedded development walker-commonCommon functionality for SBOM and CSAF walker103,472Apache-2.0Data structures modular-bitfield-msb-implBitfields for structs that allow for modular use of enums. MSB-first version.103,124MIT/Apache-2.0Data structures hierarchical_hash_wheel_timerA low-level timer implementation using a hierarchical four-level hash wheel with overflow.103,109MITData structuresSimulation modular-bitfield-msbAllows to easily define bitfield types with modular building blocks. MSB-first version.102,446MIT/Apache-2.0Data structuresNo standard library ic-cdk-optimizerWASM Optimizer for the IC CDK (experimental).102,284Apache-2.0API bindingsCommand line utilities bc-urUniform Resources (UR) for Rust.101,832BSD-2-Clause-PatentData structuresEncoding iso4217-parserParser for ISO 4217 XML Data101,677Apache-2.0Data structuresFinance substrait-explainExplain Substrait plans as human-readable text.101,423Apache-2.0Data structuresDatabase interfaces minimum_redundancyThe library to encode and decode data with binary or non-binary Huffman coding.100,808MIT OR Apache-2.0AlgorithmsCompression redoUse the undo crate instead.100,763MIT OR Apache-2.0Data structuresNo standard library zipcodesQuery U.S. zipcodes without SQLite, with the full dataset embedded at compile time.100,664MITData structuresDatabase interfaces ruvector-mincutWorld's first subpolynomial dynamic min-cut: self-healing networks, AI optimization, real-time graph analysis100,462MITAlgorithmsData structures mc-oblivious-ramImplementations of Oblivious RAM data structures99,912GPL-3.0CryptographyData structures fhir-modelFHIR Software Development Kit. Library for interfacing with FHIR.99,560MITData structuresParser implementations microkelvinA crate for tree traversal over annotated data structures99,546MPL-2.0Data structuresNo standard library sbom-walkerA library to work with SBOM data99,350Apache-2.0Data structures mc-oblivious-mapImplementation of Oblivious Hash Map data structures on top of Oblivious RAM99,198GPL-3.0CryptographyData structures kv-trie-rsKV capable prefix trie library based on LOUDS.99,147MIT OR Apache-2.0CompressionData structures bevy_hecsBevy fork of hecs: a fast, minimal, and ergonomic entity-component-system99,068Apache-2.0Data structuresGame engines machine-vision-formatsTypes and traits for working with raw image data from machine vision cameras99,038MIT OR Apache-2.0Computer visionData structures similariMachine learning framework for building object trackers and similarity search engines97,154Apache-2.0AlgorithmsComputer vision good_memory_allocatorA blazingly fast and memory efficient memory allocator to be used in `no_std` environments.96,883MITAlgorithmsData structures paginateA framework agnostic pagination crate, that is especially suited for databases, slices and collections. Paginate calculates the…96,798Apache-2.0AlgorithmsData structures string-offsetsConverts string offsets between UTF-8 bytes, UTF-16 code units, Unicode code points, and lines.96,514MITAlgorithmsData structures lrumapA safe Least Recently Used (LRU) cache implementation with ordered and unordered support.96,495MIT OR Apache-2.0CachingData structures greentic-typesShared primitives for Greentic: TenantCtx, InvocationEnvelope, NodeError, ids.96,089MITConfigurationData structures beach_mapImplementation of a slotmap95,246MIT OR Apache-2.0Data structuresNo standard library trk-ioTrackVis (*.trk) reader and writer95,218BSD-2-ClauseData structuresScience varuintVariable length signed and unsigned integer types95,154MITCompressionData structures gpt_disk_ioGPT (GUID Partition Table) disk IO no_std library95,098MIT OR Apache-2.0Data structuresEmbedded development geo-indexFast, immutable, ABI-stable spatial indexes.94,907MIT OR Apache-2.0AlgorithmsData structures tagged-typesDefine strongly typed wrappers over base types with minimal boilerplate94,860MITData structures ordqOrder keeping job processing queue94,816MIT OR Apache-2.0AlgorithmsData structures tagged-types-deriveDefine derive procmacro for tagged types94,416MITData structures any_keyDynamically typed keys for associative arrays.92,636MIT/Apache-2.0Data structures es-entity-macrosProc macros for es-entity92,479Apache-2.0Data structuresDatabase interfaces miniconfSerialize/deserialize/access reflection for trees92,360MITConfigurationData structures planus-lexerInternal lexer library for planus.92,313MIT/Apache-2.0Data structuresEncoding es-entityEvent Sourcing Entity Framework91,851Apache-2.0Data structuresDatabase interfaces planus-typesInternal type library for planus.91,742MIT/Apache-2.0Data structuresEncoding arm-ffaArm Firmware Framework for Arm A-profile support library91,599MIT OR Apache-2.0API bindingsData structures codeqCodec trait91,531MIT OR Apache-2.0AlgorithmsData structures vecsetA vector-based sorted map, set and keyed-set implementation91,380MIT OR Apache-2.0Data structuresNo standard library swap-buffer-queueA buffering MPSC queue.91,369MITConcurrencyData structures fm-indexFM index and its variant implementations for Rust.91,338MIT OR Apache-2.0AlgorithmsData structures rust-3d2D/3D library written in rust91,102MITAlgorithmsData structures im-listsPersistent unrolled linked lists and vlists90,999MIT OR Apache-2.0Data structures fpdec-coreCommon constants and functions for crate fpdec.90,839non-standardData structuresMathematics ctrf-rsA reporter for Common Test Report Format (CTRF) in Rust90,789MITData structuresDevelopment tools::Testing libafl_wideA crate to help you go wide, but for libafl90,429Zlib OR Apache-2.0 OR MITData structuresHardware support scarletColors and color spaces made simple90,261Apache-2.0Data structuresMultimedia::Images rexsgdataScatter-Gather Data Descriptors90,008Apache-2.0 OR MITData structures fixed-slice-vec`FixedSliceVec` is a dynamic length Vec with runtime-determined maximum capacity backed by a slice.89,798Apache-2.0Data structuresEmbedded development planus-translationInternal translation library for planus.89,656MIT/Apache-2.0Data structuresEncoding stofData Runtime. JSON that runs.89,452Apache-2.0AsynchronousCompilers fpdec-macrosMacros supporting decimal floating-point arithmetic.89,099non-standardData structuresMathematics spatialbenchBlazing fast pure Rust Spatial Bench data generation library.88,819Apache-2.0Data structuresDatabase interfaces spatialbench-arrowSpatialBench data generator into Apache Arrow format88,699Apache-2.0Data structuresDatabase interfaces raft-logRaft log implementation88,586MIT OR Apache-2.0AlgorithmsData structures surrealcsThe SurrealCS client code for SurrealDB88,300BUSL-1.1Data structuresDatabase implementations surrealcs-kernelThe SurrealCS kernel code for SurrealDB88,212BUSL-1.1Data structuresDatabase implementations planus-codegenInternal codegen library for planus.86,525MIT/Apache-2.0Data structuresEncoding libpnaPNA(Portable-Network-Archive) decoding and encoding library86,348Apache-2.0 OR MITData structuresFilesystem traversalGeneric and lazy tree traversal algorithms85,901MITAlgorithmsData structures rotblRead Only Table85,650MIT OR Apache-2.0AlgorithmsData structures user-errorUserFacingError is an error crate that allows you to pretty print your errors and error chain for consumption by the end user. If…85,559non-standardCommand-line interfaceData structures bidir-mapBidirectional map implementation for Rust85,558MITAlgorithmsData structures fhir-sdkFHIR Software Development Kit. Library for interfacing with FHIR.85,498MITData structuresParser implementations typed-generational-arenaA safe arena allocator that supports deletion without suffering from the ABA problem by using generational indices. Now with…85,347MPL-2.0Data structuresMemory management rarena-allocatorLock-free ARENA allocator which can be used in both memory and on-disk.85,161MIT OR Apache-2.0ConcurrencyData structures compact-genomeRepresentation of genomes84,863BSD-2-ClauseData structuresScience detachhelper type for being able to detach/reatach a member item84,582Apache-2.0Data structuresRust patterns tmpdirUseful to create temp directories and copy their contents on completion of some action. Tmp dirs will be created using…84,493MITAsynchronousData structures surrealdb-collectionsSorted vec-backed map and set types for SurrealDB (internal API).84,225non-standardData structuresDatabase implementations surrealdb-strandA scalable, distributed, collaborative, document-graph database, for the realtime web84,202non-standardData structuresDatabase implementations rc-borrowBorrowed forms of Rc and Arc.84,108MIT OR Apache-2.0Data structuresNo standard library imap-typesMisuse-resistant data structures for IMAP84,045MIT OR Apache-2.0Data structuresEmail chat-promptsChat prompt template83,725Apache-2.0Data structures modqlRust implementation for Model Query Language support83,675MIT OR Apache-2.0Data structures slabigatorA fixed-capacity linked list with stable element addressing and no dynamic allocations83,373MIT OR Apache-2.0Data structuresMemory management crawdadCrawdad: ChaRActer-Wise Double-Array Dictionary83,078MIT OR Apache-2.0AlgorithmsData structures merkle_lightLight merkle tree implementation with SPV support and dependency agnostic.83,004BSD-3-ClauseCryptographyData structures rustic_corerustic_core - library for fast, encrypted, deduplicated backups that powers rustic-rs82,573Apache-2.0 OR MITData structuresEncoding queue-extThe extended feature of the queue can convert the pop() function of the queue to Stream and the push() function to Sender.82,197MIT OR Apache-2.0AlgorithmsConcurrency incremental-topoData structure to maintain an incremental topological ordering over a collection of values81,829MIT OR Apache-2.0AlgorithmsData structures arccstrThread-safe, reference-counted null-terminated immutable strings.81,523MIT OR Apache-2.0ConcurrencyData structures hdrsampleA port of HdrHistogram to Rust81,349MIT/Apache-2.0Data structuresDevelopment tools::Profiling number-generalA generic number type for Rust which supports basic math and (de)serialization.81,000Apache-2.0Data structuresMathematics sumGeneral-purpose sum types.80,885MIT OR Apache-2.0Data structures spider_agent_typesPure data types and constants for spider_agent automation. Zero heavy dependencies.80,670MITData structuresWeb programming mzdataA library to read mass spectrometry data formats and a data model for mass spectra80,384Apache-2.0Data structuresParser implementations lance-deriveDerive macros for Lance80,117Apache-2.0Data structuresDatabase implementations lance-arrow-scalarArrow scalar type with Ord, Hash, and Eq support80,027Apache-2.0Data structuresDatabase implementations lance-selectRow-selection masks and index-result algebra for Lance79,994Apache-2.0Data structuresDatabase implementations lance-arrow-statsStatistics accumulator for Arrow arrays (min, max, null_count, nan_count)79,983Apache-2.0Data structuresDatabase implementations feldera_rust_decimalDecimal number implementation written in pure Rust suitable for financial and fixed-precision calculations.79,659MITData structuresMathematics llm_models_spiderAuto-updated registry of LLM model capabilities (vision, audio, etc.)79,474MITData structuresWeb programming diesel-enumInterop between your enums and your database with diesel78,886MITData structuresDatabase interfaces pearlPearl is a low level blob-based I/O library78,799MITData structuresFilesystem blobBlob serialization/deserialization utilities78,357MITData structuresEncoding diff_jsonA powerful JSON diff library for Rust78,169MIT OR Apache-2.0Data structuresEncoding typed-slabTyped wrapper for Slab78,137MITData structuresMemory management afarrayConvenience methods for working with ArrayFire arrays in Rust78,125Apache-2.0AlgorithmsData structures asimov-sdkASIMOV Software Development Kit (SDK) for Rust77,554UnlicenseAPI bindingsData structures csaf-cliA CLI to work with CSAF data77,337Apache-2.0Command line utilitiesData structures reactive-signalsreactive-signals is a dx-first scope-based fine-grained reactive system.76,789MITData structures slab_treeA vec-backed tree structure with tree-specific generational indexes.76,774MITData structures ndarray-parallelParallelization for ndarray using rayon. (Deprecated - use ndarray with rayon directly.)76,342MIT/Apache-2.0ConcurrencyData structures rangelistA representation of sets as lists of inclusive ranges76,305MPL-2.0Data structuresMathematics fedimint-aleph-bftAlephBFT is an asynchronous and Byzantine fault tolerant consensus protocol aimed at ordering arbitrary messages (transactions).…76,197Apache-2.0AlgorithmsCryptography alloc-checkedCollections that don't panic on alloc failures75,977MIT OR Apache-2.0Data structuresMemory management dbspContinuous streaming analytics engine75,838MIT OR Apache-2.0AlgorithmsData structures biodivine-lib-bddA simple thread-safe implementation of basic binary decision diagrams.75,606MITData structuresMathematics pikkrJSON Parser which picks up values directly without performing tokenization in Rust75,521MIT/Apache-2.0AlgorithmsData structures csfThe library of compressed static functions (maps) that use perfect hashing and value compression.75,292MIT OR Apache-2.0AlgorithmsCompression scalable_cuckoo_filterA variant of Cuckoo Filter whose size automatically scales as necessary75,042MITData structures span-mapA data structure for efficiently managing sets of values over spans/ranges74,921MIT OR Apache-2.0AlgorithmsData structures small-fixed-arrayA crate providing fixed length immutable collections with a low memory footprint.74,632MITData structures interavlAn optimised interval tree for efficient interval stabbing74,454Apache-2.0AlgorithmsData structures linearizeTypes that are enumerable and an array-backed map74,447MIT OR Apache-2.0Data structuresNo standard library bool_extA crate which defines and implements a complete set of `Option`/`Result`-style Boolean functional combinators on Rust's `bool`…74,009MIT OR Apache-2.0Data structuresParser implementations modql-macrosMacros for modql. Not intended to be used directly.73,995MIT OR Apache-2.0Data structures vortex-exprVortex Expressions73,475Apache-2.0CompressionData structures feattle-coreFeatture toggles for Rust, extensible and with background synchronization and administration UI73,301MIT OR Apache-2.0ConfigurationData structures recursive_arrayan implementation of arrays using recrusive data structures to avoid limitations of the rust compiler72,722MITData structuresNo standard library timed-mapLightweight map implementation that supports expiring entries and fully compatible with both std and no_std environments.72,461MITData structuresNo standard library serde-varsConveniently expose (environment) variables to your serde based data structures, like configurations.72,275MITConfigurationData structures rust-claccRust implementanion of a CL universal accumulator72,133MITAlgorithmsCryptography stacRust library for the SpatioTemporal Asset Catalog (STAC) specification72,042MIT OR Apache-2.0Data structuresScience polytypeA Hindley-Milner polymorphic typing system.71,927MITAlgorithmsData structures stacked_errorshigh level error propogation with software controlled backtraces71,637MIT OR Apache-2.0Data structuresNo standard library sklA lock-free thread-safe concurrent ARENA based (heap backend or memory map backend) skiplist implementation which helps develop…71,344MIT OR Apache-2.0ConcurrencyData structures async-change-trackerreactive change notifications using futures71,289MIT/Apache-2.0AsynchronousData structures desyncA hassle-free data type for asynchronous programming70,933Apache-2.0AlgorithmsAsynchronous vpsearchVantage Point Tree search algorithm for fast nearest neighbour search in multi-dimensional metric spaces.70,919BSD-2-ClauseAlgorithmsData structures cacheline-efPer-cacheline encoding of sorted integer sequences70,492MITData structuresScience feattle-uiFeatture toggles for Rust, extensible and with background synchronization and administration UI70,146MIT OR Apache-2.0ConfigurationData structures wccg-modelsWCCG Data69,750MIT OR Apache-2.0Data structures fidFID (Fully Indexable Dictionary) implementation for Rust69,659MIT OR Apache-2.0Data structures starlingThis tree structure is a binary merkle tree with branch compression via split indexes.69,439MIT/Apache-2.0AlgorithmsData structures traitgraphAbstracting over different graph representations68,735BSD-2-ClauseData structuresMathematics enum_metaAdd metadata to Enum Variants68,728MIT/Apache-2.0Data structures rc-u8-readerA tiny implement for reading `u8` data from a reference counted instance.68,695MITData structures embed-collectionsA collection of memory efficient and intrusive data structures68,543MIT OR Apache-2.0Data structuresNo standard library feattleFeatture toggles for Rust, extensible and with background synchronization and administration UI68,438MIT OR Apache-2.0ConfigurationData structures async-raftAn async implementation of the Raft distributed consensus protocol.68,353MIT/Apache-2.0AlgorithmsAsynchronous cw-semverParser and evaluator for Cargo's flavor of Semantic Versioning68,215MIT OR Apache-2.0Data structuresNo standard library timer_listA list of timed events that will be triggered sequentially when the timer expires67,749GPL-3.0-or-later OR Apache-2.0 OR MulanPSL-2.0Data structuresDate and time chronologicTime constraint reasoning (scheduling...)67,649MITAlgorithmsData structures ptrieGeneric trie data structure implementation (prefix tree) with support for different key and value types, and functions to search…67,355non-standardData structures quantitiesUnit-safe computations with quantities.67,177non-standardData structuresMathematics matreexA simple matrix implementation.67,138MITData structuresNo standard library molecule-codegenCode generator for molecule.67,073MITData structuresDevelopment tools::Build Utils serde_eitherSimple set to enums to deserialize and serialize data that can either be string, struct or vec66,886MIT OR Apache-2.0Data structures feattle-syncFeatture toggles for Rust, extensible and with background synchronization and administration UI66,815MIT OR Apache-2.0ConfigurationData structures tuplezTuples represented in recursive form66,677MIT OR Apache-2.0Data structuresNo standard library slotmapdorlp/slotmap fork where serialization cycle doesn't change observable behavior66,510ZlibCachingData structures rust_decimal_macro_implsShorthand macros to assist creating Decimal types. Do not depend on this directly; use rust_decimal_macros65,703MITData structuresScience sourmashtools for comparing biological sequences with k-mer sketches65,262BSD-3-ClauseAlgorithmsData structures boolvecA vector of boolean stored contiguously in memory.65,258MITData structures either-or-bothThe enums EitherOrBoth with the three variants Left, Right, Both and Either with the Left and Right variants64,887Apache-2.0 OR MITData structuresNo standard library minivecA version of Vec that's only the size of a single pointer64,778BSL-1.0Data structures hypercoreSecure, distributed, append-only log64,719MIT OR Apache-2.0AsynchronousConcurrency bitset-fixedBitset for DP.64,565MITData structures libhaystackRust implementation of the Haystack 4 data types, defs, filter, units, and encodings64,270BSD-3-ClauseCommand line utilitiesData structures pnaPNA(Portable-Network-Archive) decoding and encoding library63,791Apache-2.0 OR MITData structuresFilesystem usvUSV: Unicode Separated Values (USV) for data markup. This is for spreadsheets, databases, content management, and more. This…63,690MIT OR Apache-2.0 OR GPL-2.0 OR GPL-3.0Data structuresDatabase interfaces compact_arenaA crate with some types to allow indexed arenas with small memory footprint63,623MIT OR Apache-2.0Data structuresMemory management bitlabExtracting a range of bits from a binary data source63,439MITData structures