All 305,250 crates, alphabetically

sparkysome common sdr helpers that i've been using for my personal radio code1,261MIT sparoptSPARQL optimizer460,687MIT OR Apache-2.0 sparqlA dataflow implementation of the SPARQL graph query language.17,342UnlicenseAsynchronousNo standard library sparql-algebraA dataflow implementation of the SPARQL graph query language.14,668UnlicenseAsynchronousNo standard library sparql-clientSPARQL client based on Oxigraph components2,452BSD-2-ClauseDatabase interfaces sparql-deriveA dataflow implementation of the SPARQL graph query language.12,643UnlicenseAsynchronousNo standard library sparql-engineA dataflow implementation of the SPARQL graph query language.12,975UnlicenseAsynchronousNo standard library sparql-parserA dataflow implementation of the SPARQL graph query language.6,451UnlicenseAsynchronousNo standard library sparql-smithSPARQL test cases generator14,450MIT OR Apache-2.0 sparql-storeA dataflow implementation of the SPARQL graph query language.8,444UnlicenseAsynchronousNo standard library sparql_http_clientAsync, typed SPARQL HTTP client with optional compile-time query validation41MIT OR Apache-2.0Database interfacesNetwork programming sparql_http_client_macrosProc-macro crate for sparql_http_client (compile-time SPARQL query validation)105MIT OR Apache-2.0Database interfacesNetwork programming sparql_serviceRDF data shapes implementation in Rust45,818MIT OR Apache-2.0 sparqlingMinimal async SPARQL-over-HTTP client580MIT OR Apache-2.0API bindingsWeb programming::HTTP client sparreal-kernelSparreal OS kernel37,139MPL-2.0Embedded developmentNo standard library sparreal-macrosmacros for sparreal27,742MITEmbedded developmentNo standard library sparreal-rtSparreal OS kernel37,896MPL-2.0Embedded developmentNo standard library sparrowA lightweight in-memory database1,628Apache-2.0 sparrow-cliA local-first Rust agent cockpit — route, run, replay, rewind405MITCommand line utilitiesDevelopment tools sparrow-configConfiguration, provider registry, auth/credential store, permissions, hooks, sandbox and humanize layer for Sparrow171MIT sparrow-coreCore event and runtime contracts for Sparrow272MIT sparrow-intelPublic release intelligence cache for Sparrow202MIT sparrow-memoryPersistent memory (SQLite facts, FTS5 search, knowledge graph, symbol index) and secret redaction for Sparrow173MIT sparrow-providersModel provider adapters (Brain trait, OpenAI-compat, Anthropic, Ollama, Responses) for Sparrow248MIT sparrow-toolsAgent tools (fs, edit, search, web, browser, git, exec, todo, media, code-nav, memory tool) for Sparrow123MIT sparrow32ktest for publishing3,777MIT OR Apache-2.0 sparrow_agentA full function Rust agent53MIT sparrowdbEmbedded graph database with Cypher queries — no server, no subscription, no cloud553MITData structuresDatabase interfaces sparrowdb-catalogSchema catalog (labels, properties, rel-types) for SparrowDB739MITData structuresDatabase interfaces sparrowdb-commonShared types and primitives for SparrowDB embedded graph database843MITData structuresDatabase interfaces sparrowdb-cypherCypher query parser and planner for SparrowDB683MITDatabase interfacesParser implementations sparrowdb-executionQuery execution engine for SparrowDB embedded graph database610MITData structuresDatabase interfaces sparrowdb-ontology-cliCLI for Sparrow Ontology — ontology-aware semantic layer over SparrowDB65MIT sparrowdb-ontology-coreOntology semantic layer for SparrowDB208MIT sparrowdb-ontology-mcpMCP server for Sparrow Ontology — ontology-aware semantic layer over SparrowDB130MIT sparrowdb-storageStorage engine (WAL, node store, edge store, CSR) for SparrowDB804MITDatabase interfacesFilesystem spars💥 Disk-based sparse matrix statistics and subsetting 💥1,902MIT spars-httpdA small httpd for serving static files and SPAs386MIT OR Apache-2.0Command line utilitiesWeb programming sparseSparse10,325MITMathematics sparse-bin-matA sparse implementation of a binary matrix optimized for row operations28,083MIT OR Apache-2.0AlgorithmsData structures sparse-bitfieldBitfield that allocates a series of small buffers35,929MIT OR Apache-2.0 sparse-flashA utility for writing sparse files to a block device. It will zero out empty sections of the block device.1,499MIT sparse-hash-mapOpen-addressing hash map and set that stay small at low load factor38MITData structures sparse-interpBasic univariate polynomial arithmetic and sparse polynomial interpolation.5,2260BSDAlgorithmsMathematics sparse-irRust implementation of SparseIR functionality501MIT OR Apache-2.0 sparse-ir-capiC API for SparseIR Rust implementation203MIT OR Apache-2.0 sparse-memFixed-capacity, generation-tracked sparse array implementation optimized for the Swamp VM4,425MITData structuresMemory management sparse-merkle-treeSparse merkle tree implement in rust278,823MIT sparse-ngramsFast sparse n-gram extraction from byte slices.576MITAlgorithmsData structures sparse-rsSparse linear algebra2,547MIT sparse-slotminimal sparse slot (sparse vector)18,326MIT Sparse-Voxel-64TreeA lib for handling Sparse Voxel Contrees788MIT sparse21Sparse Matrix Solver8,498BSD-3-Clause sparse_arrayArray/Map for large & sparse data13MIT OR Apache-2.0Data structures sparse_complexA simple solver for complex sparse matrices.6,134MITData structuresMathematics sparse_graphSparse graph algorithms5,114MITAlgorithmsData structures sparse_linear_assignmentSolvers for sparse linear assignment problem based on the auction algorithm8,370Apache-2.0AlgorithmsMathematics sparse_mapA sparse map with stable generational keys.447MIT OR Apache-2.0Data structuresNo standard library sparse_matrixA library to do linear algebra with sparse matrix27,735MIT sparse_rangesEfficient sparse range set operations, particularly designed for HTTP range requests and file offset management1,485MITData structuresWeb programming sparse_setImplementation of the sparse set data structure15,297MIT OR Apache-2.0Data structures sparse_set_containerA container based on sparse set. Stable keys, O(1) lookup, cache-friendly iterations, and no hashing.6,107MITData structures sparse_tableSparseTable Struct / ST表数据结构3,769MIT sparse_vecDatastructure that stores separate but contiguous ranges of values efficiently1,501MIT SparseDOKsSparse-matrix DOK implementations.43MIT OR Apache-2.0 sparseglmFast memory-efficient solver for sparse generalized linear models1,146non-standardScience sparseioA library for coordinating sparse, out-of-order byte-range fetching and materialization of large objects.38Apache-2.0Filesystem sparselaFast linear algebra on sparse matrices1,738AGPL-3.0-onlyMathematicsSimulation sparsemapA sparse, compressed bitmap with run-length encoding, optimized for long runs of consecutive bits. 100% safe Rust, no_std, zero…66MITCompressionData structures sparsematA simple sparse matrix library1,579MIT sparsematrixEmpty1,486MIT sparserS-expression parser for Rust3,434MPL-2.0 sparserssparerse-rs: sparse matrix computation written in rust40MITAlgorithmsData structures sparsesetA Sparse Set11,270MIT sparsetools2-D sparse matrix package for numeric data10,746BSD-3-Clause sparseutilsSmall command-line utilities for working with sparse files38Apache-2.0Command line utilitiesFilesystem sparsevecCompress vectors using row displacement1,470,586Apache-2.0/MITData structures sparseyEntity Component System based on sparse sets21,785MIT OR Apache-2.0Data structuresGame development sparsitysparsity1,495non-standard sparslogSDR receiver for IKEA sparsnäs1,068MIT sparsyncrsync-style high-performance file synchronization over QUIC and Spargio204MITCommand line utilitiesFilesystem spartA collection of space partitioning tree data structures for Rust5,344MIT OR Apache-2.0AlgorithmsData structures spartaSPARTA is a library of software components specially designed for building high-performance static analyzers based on the theory…3,956MIT sparta-proc-macrosRust proc macros2,498MIT spartanHigh-speed zkSNARKs without trusted setup24,944non-standard spartan-codecA proof-of-concept encoder for the Subspace Network Blockchain based on the SLOTH permutation3,493MIT spartan-protocolA spec-faithful implementation of the Spartan protocol (spartan://): async client, server with a handler seam, static file…90MITNetwork programming spartan2High-speed zkSNARKs without trusted setup4,276non-standard sparteHelpers for scientific calculs2,594GPL-2.0-or-laterDevelopment tools sparxSPARX block ciphers implementations123,471ISCAlgorithmsCryptography sparx-cipherAnother SPARX block cipher implementation for Rust4,854MITCryptographyNo standard library spaserverFor SPA UI mockup server1,912MITCommand-line interfaceCommand line utilities spassDecrypt and convert Samsung Pass (.spass) export files17MIT OR Apache-2.0CryptographyParser implementations spatUtility for shortening UNIX-like paths.7,584MITCommand line utilitiesFilesystem spatchJSON Patch (RFC 6902) library and CLI with optional schema-aware paths for stable array element addressing187non-standard spathSPath is query expressions for semi-structured data. You can use it as a drop-in replacement for JSONPath, but also for…3,659Apache-2.0 spath-cliA Windows PATH security scanner and fixer - detects and fixes unquoted paths with spaces76MITCommand line utilitiesDevelopment tools spatialAn N-Dimensional R-tree family spatial tree implementations9,747MIT/Apache-2.0 spatial-decompositionAlgorithms to partition 2D spaces.3,009MIT OR Apache-2.0 spatial-hasherA Rust library for deterministic encryption and decryption using 3D spatial parameters with secure authenticated encryption.7,610MITCryptographyEncoding spatial-joinSpatial join tools8,505MIT/Apache-2.0 spatial-makerConvert 2D images and videos to stereoscopic 3D spatial content for Apple Vision Pro using AI depth estimation169MITComputer visionMultimedia::Images spatial-mathSpatial math library for articulated body simulation329non-standardSimulation spatial-motionGeneric spatial transforms and movement, built on geometric algebra traits57MIT OR Apache-2.0Game developmentMathematics spatial-narrativeA Rust library for representing, analyzing, and working with narratives that unfold across real-world geographic space22MITData structuresParsing tools spatial-neighborsSimple to use implementation of certain Spatial-Partitioning Algorithms | DataStructures6,359MITAlgorithmsData structures spatial-typestateA Rust library for type-state enforced 3D coordinate systems, units, and transforms to prevent frame-mixing errors at compile…22Apache-2.0AerospaceEmbedded development spatial_algA Rust library for spatial algorithms.318MIT spatial_codec_dracoA small, robust wrapper around the upstream Draco point-cloud codec.475MIT OR Apache-2.0 spatial_codecsHigh-throughput, format-agnostic encoding/decoding for spatial data (point clouds, Gaussian splats, …)201MIT OR Apache-2.0 spatial_computing_3dSpatial analysis & Spatial statistics in Rust1,376MIT spatial_hashA 2D Spatial Hash which uses cubes, triangles and hexes.2,802MIT spatial_hash_3d3D spatial hash grid implementation optimized for speed. What it does/why you'd want one:…6,848GPL-2.0-or-laterData structuresGame development spatial_ledSled is an ergonomic rust library that maps out the shape of your LED strips in 2D space to help you create stunning lighting…3,623MIT OR Apache-2.0 spatial_sliceSpacial Slice is a simple Rust crate for when you want to store two dimensional Sized data in linear memory.1,765MIT spatial_tableBi-directional association between entities and 2D grid locations25,798MIT spatial_utilsLightweight, zero-cost traits and helper types for representing and transmitting spatial "samples" used by point-cloud and…145MIT OR Apache-2.0 spatialarraySpatialArray: labeled n-dimensional arrays with spatial-aware helpers for geospatial and scientific workflows.443MIT 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 spatialbench-cliBlazing fast pure Rust SpatialBench data generator command line tool.64Apache-2.0Command line utilitiesDatabase interfaces spatialindexHigher-level bindings to libspatialindex4,439MIT/Apache-2.0 spatialindex-sysRust bindings to libspatialindex1,863MIT/Apache-2.0 spatialite-rsWraps the sqlite crate, so that when you call spatialite_rs::open it will load mod_spatialite.so into the connection before…10,774MIT OR Apache-2.0 spatialite-sysLow-level bindings to the SpatiaLite SQLite geospatial extension3,834MPL-1.1/GPL-2.0/LGPL-2.1 spatializespatialize is a collection of spatial data structures used for efficent spatial partitioning1,048MIT OR Apache-2.0Data structures spatialosSystem crate used to link with SpatialOs libraries5,658GPL-3.0-or-later spatialos-codegenCodegen tool used with spatialos-macro and spatialos-sdk7,809GPL-3.0-or-later spatialos-macroProcmacro crate used to expand SpatialOS component and types created with spatialos-codegen10,157GPL-3.0-or-later spatialos-rsSystem crate used to link with SpatialOs libraries1,152GPL-3.0-or-later spatialos-sdkHigh-level SDK built around spatialos-sys6,171GPL-3.0-or-later spatialos-sysSystem crate used to link with SpatialOs libraries10,219GPL-3.0-or-later spatialtimeA simple library to lookup longitude + latitude pairs, using flatgeobufs.9,386MITDate and time spatialtreeA fast and flexible generic spatial tree collection (Octree, Quadtree, etc)4,806GPL-3.0Data structures spatioA high-performance, embedded spatio-temporal database for modern applications2,182MITDatabase implementationsScience::Geospatial spatio-cabiC ABI for Spatio - used to build non-Rust language bindings (e.g. the Go bindings via purego)16MIT spatio-clientNative Rust RPC client for Spatio database216MIT spatio-rpcSpatio RPC framing and codecs35MIT spatio-sdkRust SDK for the SpatioAPI. Generated from the official OpenAPI spec.20MITAPI bindings spatio-serverHigh-performance RPC server for Spatio database446MIT spatio-typesCore spatial and temporal data types for the Spatio database952MITData structuresScience::Geospatial spatiotemporal-tilesSpatioTemporal Tiles (STT): animated space-time tile archives — umbrella crate re-exporting the stt-* libraries and shipping the…71MITCommand line utilitiesEncoding spatiumSpatium. Calc distance between sequences.2,942MIT OR Apache-2.0Algorithms spatreeFast 2D spatial indexing using Morton codes.22MIT OR Apache-2.0Data structuresGUI spatulaParser and interpreter for the Chef language1,173MITParser implementations spawnSimple IPC-based RPC for forked processes1,313MIT OR Apache-2.0 spawn-access-controlA Rust library for access control management with WebAssembly support, including role-based access control (RBAC), permissions,…11,092MITCryptographyWeb programming spawn-base64A simple Base64 encoding/decoding library for WASM in Rust.2,106MIT spawn-bitmathA BitMath library optimized for Ethereum projects, implemented in Rust.1,152MIT spawn-cliA command-line tool for creating files and folders from a template.4,562MIT spawn-dbDatabase Build System190AGPL-3.0-only spawn-editorContains utility functions to spawn a text editor8,782MIT OR Apache-2.0 spawn-lndDocker-backed Bitcoin Core and LND regtest clusters for Rust integration tests183MITDevelopment tools::Testing spawn-nftA highly optimized Rust WebAssembly (WASM) library for Ethereum NFT management.1,225MITCryptographyWeb programming spawn-ptraceSpawn a process with ptrace enabled.16,188MIT spawn-stdHelper traits for spawning asynchronous tasks while letting the user choose the runtime.353MIT OR Apache-2.0 OR EUPL-1.2 spawn-std-async-stdasync-std implementation for spawn-std520MIT OR Apache-2.0 OR EUPL-1.2 spawn-std-coreHelper traits for spawning asynchronous tasks while letting the user choose the runtime.1,106MIT OR Apache-2.0 OR EUPL-1.2 spawn-std-smol-1smol v1 implementation for spawn-std518MIT OR Apache-2.0 OR EUPL-1.2 spawn-std-smol-2smol v2 implementation for spawn-std521MIT OR Apache-2.0 OR EUPL-1.2 spawn-std-tokiotokio implementation for spawn-std520MIT OR Apache-2.0 OR EUPL-1.2 spawn-stochasticA Rust library for simulating multiple stochastic processes including ABM, GBM, Ornstein-Uhlenbeck, Feller Square Root, and…1,171MITFinanceMathematics spawn-task-portSpawn a child process on OS X and get the child's Mach task port.4,839MIT spawn-waitSpawn and manage a set of processes each associated with a key, and wait on all or part of them simultaneously.7,457MIT spawn-wasm-ecdsaA WASM-based ECDSA signature verification library for Web3 developers.2,217MITCryptographyWeb programming spawn-wasm-erc20A WASM-based ERC-20 token library for Web3 developers, providing a high-performance, secure, and customizable solution.2,148MITCryptographyWeb programming spawn-wasm-erc721A Rust library for creating ERC-721 compliant Non-Fungible Tokens (NFTs) with WebAssembly (WASM) support.5,076MIT spawn-zk-snarksZero-knowledge proof library with EVM compatibility5,563MITCryptographyMathematics spawn64An efficient way to spawn futures in WASM8,091MIT spawn_groupsStructured concurrency construct written in Rust, for Rustaceans4,165non-standard spawn_intervalCall a subroutine at a constant time interval1,527MITAccessibilityAsynchronous spawn_pointA CLI tool for generating project scaffolds from templates with built-in validation.1,217MPL-2.0Command line utilitiesDevelopment tools spawn_timeoutCall a subroutine after a constant time interval1,756MITAccessibilityAsynchronous spawnedBasic actor framework for Rust530MIT spawned-concurrencySpawned Concurrency262,600MIT spawned-macrosProc macros for the Spawned actor framework71,666MIT spawned-rtSpawned Runtime262,898MIT spawnerTiny wrapper for `thread::spawn` which optionally auto-joins threads on drop9,204MITAsynchronousOperating systems spawnflakeGenerate pattern based random data for mysql22,149MIT spawnflake-cliGenerate random test data for any mysql database schema5,236MITCommand line utilitiesDevelopment tools spawningpoolCreate hyper-specific, 0-waste agents98MITAPI bindingsAsynchronous spawningpool-cliCLI for spawningpool — create hyper-specific, 0-waste agents55MITCommand line utilitiesDevelopment tools spawnllmRun LLM calls through provider CLIs (claude, codex, gemini) or an OpenAI-compatible endpoint.60MIT spawnllm-coreSans-io core logic shared by spawnllm's language bindings: backend planning, output resolution, and structured-output helpers.82MIT SpawnRsSubprocess management for thegent agent orchestration20MIT spawnsAsync runtime agnostic thread context task spawner for Rust5,934,576Apache-2.0 spawns-compatAsync runtime detections for thread context task spawner5,931,038Apache-2.0 spawns-coreAsync runtime agnostic thread context task spawner for Rust5,936,826Apache-2.0 spawns-executorAsync executors for thread context task spawner6,096Apache-2.0 spaydText handling for Short Payment Descriptors (SPAYD or SPD)7,746Apache-2.0 spazio-grigio-botA telegram bot to be always up to date with spazio grigio9,609UnlicenseMultimedia spblightweight and simple progress bar.782MIT spb_rsSparkplug-B client library1,220non-standard spbflibБиблиотека для работы с форматом SPBF123MIT spbuildThe C++ Build system for singleplayer devs42GPL-3.0-or-laterCommand line utilitiesDevelopment tools spcA library for manipulating SPC (Super Nintendo music) files.6,882BSD-2-Clause spc-cliTODO1,367GPL-3.0 spc-coreA command-line tool for processing and analyzing data from SPC files.685MIT spc-rsA Rust Implementation of SPC (Statistical Process Control)4,181MIT spc-utilsSimple CLI tool for reading and downloading pre-built PHP binaries using the Static PHP CLI…182MITCommand line utilitiesDevelopment tools