All 305,250 crates, alphabetically

use-oci-namespaceOCI and Linux namespace kind primitives without platform syscalls.98MIT OR Apache-2.0Data structuresDevelopment tools use-oci-platformOCI platform primitives for operating systems, architectures, variants, and platform rendering.155MIT OR Apache-2.0Data structuresDevelopment tools use-oci-referenceOCI image reference syntax primitives for names, tags, digests, and canonical references.97MIT OR Apache-2.0Data structuresDevelopment tools use-oci-runtimeOCI runtime spec primitives for process, mount, namespace, hook, capability, resource, and rootfs metadata.81MIT OR Apache-2.0Data structuresDevelopment tools use-oci-tagOCI tag primitives with conservative validation and common tag classifiers.130MIT OR Apache-2.0Data structuresDevelopment tools use-openapiProvides lightweight typed labels for paths, operations, parameters, responses, schemas, tags, and components without parsing or…81MIT OR Apache-2.0Data structuresDevelopment tools use-opticsOptics primitives for spectra, wavelengths, and visible-light boundaries.86MIT OR Apache-2.0Science use-optimizationComposable facade crate for RustUse optimization primitives85MIT OR Apache-2.0AlgorithmsMathematics use-optimization-constraintBounds and simple constraint helpers for primitive optimization112MIT OR Apache-2.0AlgorithmsMathematics use-optionPrimitive CLI option key-value types for RustUse107MIT OR Apache-2.0Command-line interfaceRust patterns use-orbitOrbital mechanics helpers for RustUse108MIT OR Apache-2.0MathematicsScience use-orbital-elementPrimitive orbital element vocabulary for RustUse astronomy108MIT OR Apache-2.0Data structuresScience use-organPrimitive biological organ vocabulary for RustUse110MIT OR Apache-2.0Data structuresScience use-organismPrimitive organism identity and classification vocabulary for RustUse110MIT OR Apache-2.0Data structuresScience use-orientationSmall 2D orientation helpers for RustUse geometry285MIT OR Apache-2.0MathematicsScience use-origamiOrigami model primitives for the RustUse geometry workspace123MIT OR Apache-2.0MathematicsScience use-originSmall web origin utilities for RustUse69MIT OR Apache-2.0Parsing toolsWeb programming use-orthotopeOrthotope primitives for the RustUse geometry workspace123MIT OR Apache-2.0MathematicsScience use-osFacade crate for primitive RustUse OS-facing vocabulary85MIT OR Apache-2.0Data structuresOperating systems use-os-familyPrimitive operating system family vocabulary for RustUse107MIT OR Apache-2.0Data structuresOperating systems use-oscillationOscillation and simple harmonic motion helpers for RustUse109MIT OR Apache-2.0MathematicsScience use-owaspOWASP category and application-security taxonomy primitives for RustUse40MIT OR Apache-2.0Data structuresDevelopment tools use-oxidation-stateOxidation-state primitives for RustUse21MIT OR Apache-2.0Data structuresScience use-packagePrimitive electronic package vocabulary for RustUse108MIT OR Apache-2.0Data structures use-package-jsonpackage.json metadata primitives for RustUse83MIT OR Apache-2.0ConfigurationDevelopment tools use-packagistPackagist metadata primitives for RustUse.81MIT OR Apache-2.0Data structuresDevelopment tools use-paginationProvides page number, page size, limit, offset, total count, marker, and page metadata helpers.80MIT OR Apache-2.0Data structuresDevelopment tools use-particleParticle classification and metadata helpers for RustUse108MIT OR Apache-2.0MathematicsScience use-partition-keyPartition and routing key primitives for RustUse80MIT OR Apache-2.0Data structuresDatabase interfaces use-pathPractical path utility primitives49MIT OR Apache-2.0FilesystemParsing tools use-patternFeature-gated facade crate for RustUse pattern helpers86MIT OR Apache-2.0Rust patternsText processing use-paymentPayment primitives for RustUse finance crates82MIT OR Apache-2.0Data structures use-percentPercent-encoding and decoding helpers for RustUse47MIT OR Apache-2.0EncodingText processing use-percentilePercentile, quartile, and median helpers over f64 slices.113MIT OR Apache-2.0 use-periodic-tablePeriodic-table lookup and conservative classification helpers for RustUse136MIT OR Apache-2.0Data structuresScience use-pg-columnPostgreSQL column metadata primitives for RustUse100MIT OR Apache-2.0Data structuresDatabase interfaces use-pg-constraintPostgreSQL constraint primitives for RustUse80MIT OR Apache-2.0Data structuresDatabase interfaces use-pg-enumPostgreSQL enum type primitives for RustUse81MIT OR Apache-2.0Data structuresDatabase interfaces use-pg-extensionPostgreSQL extension metadata primitives for RustUse81MIT OR Apache-2.0Data structuresDatabase interfaces use-pg-identifierPostgreSQL identifier primitives for RustUse194MIT OR Apache-2.0Data structuresDatabase interfaces use-pg-indexPostgreSQL index primitives for RustUse81MIT OR Apache-2.0Data structuresDatabase interfaces use-pg-schemaPostgreSQL schema and search-path primitives for RustUse165MIT OR Apache-2.0Data structuresDatabase interfaces use-pg-sequencePostgreSQL sequence primitives for RustUse81MIT OR Apache-2.0Data structuresDatabase interfaces use-pg-tablePostgreSQL table object primitives for RustUse126MIT OR Apache-2.0Data structuresDatabase interfaces use-pg-typePostgreSQL type primitives for RustUse115MIT OR Apache-2.0Data structuresDatabase interfaces use-phpFeature-gated facade crate for RustUse PHP primitives.64MIT OR Apache-2.0Data structuresDevelopment tools use-php-attributePHP attribute metadata primitives for RustUse.81MIT OR Apache-2.0Data structuresDevelopment tools use-php-autoloadPHP autoload metadata primitives for RustUse.81MIT OR Apache-2.0Data structuresDevelopment tools use-php-docblockPHPDoc block metadata primitives for RustUse.82MIT OR Apache-2.0Data structuresDevelopment tools use-php-errorPHP error and diagnostic metadata primitives for RustUse.80MIT OR Apache-2.0Data structuresDevelopment tools use-php-extensionPHP extension metadata primitives for RustUse.81MIT OR Apache-2.0Data structuresDevelopment tools use-php-iniPHP INI metadata primitives for RustUse.82MIT OR Apache-2.0ConfigurationDevelopment tools use-php-namespacePHP namespace metadata primitives for RustUse.81MIT OR Apache-2.0Data structuresDevelopment tools use-php-symbolPHP symbol metadata primitives for RustUse.81MIT OR Apache-2.0Data structuresDevelopment tools use-php-syntaxPHP syntax label primitives for RustUse.81MIT OR Apache-2.0Development toolsParser implementations use-php-tokenPHP token metadata primitives for RustUse.83MIT OR Apache-2.0Development toolsParser implementations use-php-typePHP type metadata primitives for RustUse.80MIT OR Apache-2.0Data structuresDevelopment tools use-php-versionPHP version metadata primitives for RustUse.82MIT OR Apache-2.0Data structuresDevelopment tools use-physical-constantsReusable physical constants for RustUse121MIT OR Apache-2.0 use-physicsComposable facade crate for RustUse physics helpers126MIT OR Apache-2.0MathematicsScience use-pidMinimal PID controller primitives110MIT OR Apache-2.0AlgorithmsScience use-pinPrimitive electronic pin vocabulary for RustUse131MIT OR Apache-2.0Data structures use-pippip command and requirement metadata primitives for RustUse86MIT OR Apache-2.0Development tools use-pitchSymbolic pitch metadata primitives for RustUse.85MIT OR Apache-2.0Data structuresNo standard library::No dynamic allocation use-placePrimitive place vocabulary for RustUse109MIT OR Apache-2.0Data structuresScience use-planePlane primitives for the RustUse geometry workspace140MIT OR Apache-2.0MathematicsScience use-planetPrimitive planet vocabulary for RustUse109MIT OR Apache-2.0Data structuresScience use-planningAI planning metadata primitives for RustUse.85MIT OR Apache-2.0Data structuresScience use-plasmaSmall scalar plasma physics helpers for RustUse108MIT OR Apache-2.0MathematicsScience use-platformPrimitive platform identity and target triple vocabulary for RustUse108MIT OR Apache-2.0Data structuresOperating systems use-pnpmpnpm workspace and command primitives for RustUse82MIT OR Apache-2.0Development tools use-pointSmall validated 2D point primitives for RustUse646MIT OR Apache-2.0MathematicsScience use-polygonPolygon primitives for the RustUse geometry workspace123MIT OR Apache-2.0MathematicsScience use-polyhedral-netPolyhedral net primitives for the RustUse geometry workspace123MIT OR Apache-2.0MathematicsScience use-polyhedronPolyhedron primitives for the RustUse geometry workspace122MIT OR Apache-2.0MathematicsScience use-polylinePolyline primitives for the RustUse geometry workspace123MIT OR Apache-2.0MathematicsScience use-polynomialSmall polynomial primitives and operations for RustUse166MIT OR Apache-2.0MathematicsScience use-polytopePolytope concepts for the RustUse geometry workspace124MIT OR Apache-2.0MathematicsScience use-populationPrimitive ecological population vocabulary for RustUse109MIT OR Apache-2.0Data structuresScience use-portPort parsing, classification, and service lookup helpers for RustUse.66MIT OR Apache-2.0 use-portfolio-weightPrimitive portfolio weight vocabulary for RustUse quantitative crates132MIT OR Apache-2.0AlgorithmsFinance use-posePrimitive robot pose vocabulary for RustUse robotics108MIT OR Apache-2.0Data structuresScience use-postgresFeature-gated facade crate for RustUse PostgreSQL primitives64MIT OR Apache-2.0Data structuresDatabase interfaces use-powerAverage, mechanical, and electrical power helpers for RustUse135MIT OR Apache-2.0MathematicsScience use-preactPreact component metadata primitives for RustUse84MIT OR Apache-2.0Development toolsWeb programming use-precipitationPrimitive precipitation vocabulary for RustUse107MIT OR Apache-2.0Data structuresScience use-predicateSmall predicate composition helpers for RustUse114MIT OR Apache-2.0AlgorithmsRust patterns use-presenceFacade crate for RustUse external digital presence primitives83MIT OR Apache-2.0Data structuresWeb programming use-pressurePressure and hydrostatic pressure helpers for RustUse135MIT OR Apache-2.0MathematicsScience use-pressure-systemPrimitive pressure system vocabulary for RustUse107MIT OR Apache-2.0Data structuresScience use-price-seriesPrimitive ordered price-series vocabulary for RustUse quantitative crates132MIT OR Apache-2.0AlgorithmsFinance use-primeSmall prime number utilities for RustUse142MIT OR Apache-2.0MathematicsScience use-probabilityUtility-first probability primitives for RustUse248MIT OR Apache-2.0MathematicsScience use-process-idPrimitive process identity wrappers for RustUse135MIT OR Apache-2.0Data structuresOperating systems use-process-statusPrimitive process status and outcome metadata for RustUse107MIT OR Apache-2.0Data structuresOperating systems use-projectionProjection primitives for the RustUse geometry workspace122MIT OR Apache-2.0MathematicsScience use-projectiveProjective geometry primitives for the RustUse geometry workspace122MIT OR Apache-2.0MathematicsScience use-promptPrompt text and confirmation primitives for RustUse CLI-adjacent code106MIT OR Apache-2.0Command-line interfaceRust patterns use-psqlA simple test to use psql1,497MIT use-psrPHP-FIG PSR metadata primitives for RustUse.80MIT OR Apache-2.0Data structuresDevelopment tools use-pyprojectpyproject.toml metadata primitives for RustUse83MIT OR Apache-2.0ConfigurationDevelopment tools use-pytestpytest metadata primitives for RustUse83MIT OR Apache-2.0Development toolsDevelopment tools::Testing use-pythonFacade crate for RustUse Python ecosystem primitives62MIT OR Apache-2.0Development tools use-python-identifierASCII-safe Python identifier primitives for RustUse124MIT OR Apache-2.0Development toolsParser implementations use-python-keywordPython keyword and soft-keyword primitives for RustUse144MIT OR Apache-2.0Development toolsParser implementations use-python-modulePython module and import metadata primitives for RustUse82MIT OR Apache-2.0Development toolsParser implementations use-python-valuePython-like primitive value metadata for RustUse83MIT OR Apache-2.0Data structuresDevelopment tools use-python-versionPython version and implementation primitives for RustUse82MIT OR Apache-2.0Development tools use-quantFacade crate for RustUse quantitative finance primitives106MIT OR Apache-2.0AlgorithmsFinance use-quantumScalar quantum physics helpers for RustUse108MIT OR Apache-2.0MathematicsScience use-quarterPrimitive calendar quarter helpers110MIT OR Apache-2.0AlgorithmsScience use-querySmall query string utilities for RustUse69MIT OR Apache-2.0Parsing toolsWeb programming use-qwikQwik metadata primitives for RustUse83MIT OR Apache-2.0Development toolsWeb programming use-radiationSmall radiation physics scalar helpers for RustUse106MIT OR Apache-2.0MathematicsScience use-ragRAG metadata primitives for RustUse AI workflows.85MIT OR Apache-2.0Data structuresScience use-random-walkRepeatable one-dimensional random walk helpers108MIT OR Apache-2.0AlgorithmsMathematics use-rangeComparable range validation primitives for RustUse111MIT OR Apache-2.0AlgorithmsData structures use-rarRAR archive labels, extensions, and volume metadata primitives for RustUse81MIT OR Apache-2.0CompressionDevelopment tools use-rate-limitModels quotas, remaining counts, reset timing labels, retry-after values, buckets, and limit policy labels.79MIT OR Apache-2.0Data structuresDevelopment tools use-ratingPrimitive electronic rating wrappers for RustUse177MIT OR Apache-2.0Data structures use-rationalUtility-first rational-number primitives for RustUse241MIT OR Apache-2.0MathematicsScience use-rayRay primitives for the RustUse geometry workspace137MIT OR Apache-2.0MathematicsScience use-reactReact component and hook metadata primitives for RustUse83MIT OR Apache-2.0Development toolsWeb programming use-reactionChemical reaction representation primitives for RustUse21MIT OR Apache-2.0Data structuresScience use-readable-textPrimitive readable text sizing and measure helpers108MIT OR Apache-2.0AlgorithmsScience use-realUtility-first real-number primitives for RustUse240MIT OR Apache-2.0MathematicsScience use-reasoningAI reasoning metadata primitives for RustUse.85MIT OR Apache-2.0Data structuresScience use-receiptReceipt primitives for RustUse finance crates82MIT OR Apache-2.0Data structures use-reconciliationDeterministic reconciliation primitives for RustUse finance crates81MIT OR Apache-2.0Data structures use-rectangleRectangle primitives for the RustUse geometry workspace120MIT OR Apache-2.0MathematicsScience use-recurrencePrimitive recurrence helpers108MIT OR Apache-2.0AlgorithmsScience use-referrerReferrer and source classification primitives for RustUse106MIT OR Apache-2.0Data structuresWeb programming use-reflectionReflection primitives for the RustUse geometry workspace121MIT OR Apache-2.0MathematicsScience use-regexPractical regex utility helpers for RustUse65MIT OR Apache-2.0Text processing use-regionSmall region subtag primitives for RustUse150MIT OR Apache-2.0Internationalization (i18n)Parser implementations use-regular-polytopeRegular polytope primitives for the RustUse geometry workspace121MIT OR Apache-2.0MathematicsScience use-relativitySmall special relativity scalar helpers for RustUse107MIT OR Apache-2.0MathematicsScience use-remixRemix framework primitive metadata for RustUse84MIT OR Apache-2.0Development toolsWeb programming use-reproductionPrimitive reproduction vocabulary for RustUse108MIT OR Apache-2.0Data structuresScience use-residuePrimitive biological residue vocabulary for RustUse105MIT OR Apache-2.0Data structuresScience use-resistorPrimitive resistor vocabulary for RustUse electronics crates106MIT OR Apache-2.0Data structures use-resolutionPrimitive resolution helpers109MIT OR Apache-2.0AlgorithmsScience use-restModels resource names, collection labels, representation metadata, and REST-style constraint vocabulary without claiming full…80MIT OR Apache-2.0Data structuresDevelopment tools use-returnPrimitive quantitative return vocabulary for RustUse174MIT OR Apache-2.0AlgorithmsFinance use-rhythmRhythm metadata primitives for RustUse.86MIT OR Apache-2.0Data structuresNo standard library::No dynamic allocation use-rigid-foldingRigid folding primitives for the RustUse geometry workspace118MIT OR Apache-2.0MathematicsScience use-rigidbodyRigid-body mass properties and scalar mechanics helpers for RustUse107MIT OR Apache-2.0MathematicsScience use-riskPrimitive quantitative risk vocabulary for RustUse130MIT OR Apache-2.0AlgorithmsFinance use-robotPrimitive robot vocabulary for RustUse104MIT OR Apache-2.0Data structuresScience use-robot-idPrimitive robot identity vocabulary for RustUse104MIT OR Apache-2.0Data structuresScience use-robot-sensorPrimitive robot sensor vocabulary for RustUse robotics107MIT OR Apache-2.0Data structuresScience use-robot-subsystemPrimitive robot subsystem vocabulary for RustUse robotics118MIT OR Apache-2.0Data structuresScience use-roboticsFacade crate for RustUse robotics vocabulary primitives92MIT OR Apache-2.0Data structuresScience use-robotsRobots and indexing directive primitives for RustUse103MIT OR Apache-2.0Data structuresWeb programming use-rockPrimitive rock vocabulary for RustUse104MIT OR Apache-2.0Data structuresScience use-rotationRotational motion and angular dynamics helpers for RustUse107MIT OR Apache-2.0MathematicsScience use-routeSmall route and path utilities for RustUse65MIT OR Apache-2.0Parsing toolsWeb programming use-routing-numberABA routing number validation primitives for RustUse finance crates81MIT OR Apache-2.0Data structuresParser implementations use-rpcProvides protocol-neutral method names, request identifiers, request and response envelopes, error envelopes, and procedure…80MIT OR Apache-2.0Data structuresDevelopment tools use-ruleNamed reusable rule primitives for RustUse106MIT OR Apache-2.0Data structuresRust patterns use-rustComposable Rust ecosystem primitives for RustUse.98MIT OR Apache-2.0Development toolsRust patterns use-rust-cargoComposable Cargo project and workspace primitives for RustUse.55MIT OR Apache-2.0ConfigurationDevelopment tools use-rust-releaseComposable release-readiness primitives for RustUse.19MIT OR Apache-2.0Development toolsFilesystem use-rustaceanFacade crate for RustUse Fellow Friends deterministic fixture data81MIT OR Apache-2.0Data structuresDevelopment tools use-samplePrimitive signal sample helpers108MIT OR Apache-2.0AlgorithmsScience use-sbomSBOM and software supply-chain metadata primitives for RustUse41MIT OR Apache-2.0Data structuresDevelopment tools use-scaleScale pattern metadata primitives for RustUse.86MIT OR Apache-2.0Data structuresNo standard library::No dynamic allocation use-schemaPractical structured-data primitives for RustUse presence utilities104MIT OR Apache-2.0Data structuresWeb programming use-schlafliSchlafli symbol notation for the RustUse geometry workspace143MIT OR Apache-2.0MathematicsScience use-scorePrimitive scoring and ranking helpers for optimization108MIT OR Apache-2.0AlgorithmsMathematics use-scriptSmall writing script subtag primitives for RustUse146MIT OR Apache-2.0Internationalization (i18n)Parser implementations use-search-indexSearch-index modeling primitives for RustUse81MIT OR Apache-2.0Data structuresDatabase interfaces use-search-spacePrimitive search-space helpers for optimization108MIT OR Apache-2.0AlgorithmsMathematics use-secretSecret classification, masking, and secret-reference primitives for RustUse42MIT OR Apache-2.0Data structuresDevelopment tools use-securityFeature-gated facade crate for RustUse security primitives62MIT OR Apache-2.0Data structuresDevelopment tools use-security-findingSecurity finding and remediation metadata primitives for RustUse41MIT OR Apache-2.0Data structuresDevelopment tools use-security-headerWeb security header and browser-policy primitives for RustUse41MIT OR Apache-2.0Data structuresDevelopment tools use-security-riskCybersecurity risk metadata primitives for RustUse41MIT OR Apache-2.0Data structuresDevelopment tools use-sedimentPrimitive sediment vocabulary for RustUse104MIT OR Apache-2.0Data structuresScience use-seedRepeatable seed helpers for primitive simulations161MIT OR Apache-2.0AlgorithmsScience use-segmentSmall 2D segment primitives for RustUse geometry120MIT OR Apache-2.0MathematicsScience use-seoSEO and search snippet primitives for RustUse presence utilities103MIT OR Apache-2.0Data structuresParser implementations use-sequencePrimitive biological sequence vocabulary for RustUse104MIT OR Apache-2.0Data structuresScience use-sequence-idPrimitive biological sequence identifier vocabulary for RustUse103MIT OR Apache-2.0Data structuresScience use-seriesUtility-first progression helpers for RustUse236MIT OR Apache-2.0MathematicsScience use-setUtility-first set scaffolding for RustUse249MIT OR Apache-2.0AlgorithmsMathematics use-setpointSetpoint helpers for simple control loops106MIT OR Apache-2.0AlgorithmsScience use-signalComposable facade crate for RustUse signal-processing primitives82MIT OR Apache-2.0AlgorithmsScience use-signal-energyPrimitive energy and power helpers for signal slices107MIT OR Apache-2.0AlgorithmsScience use-signal-normalizePrimitive normalization helpers for signal slices108MIT OR Apache-2.0AlgorithmsScience use-signal-scorePrimitive quantitative signal score vocabulary for RustUse128MIT OR Apache-2.0AlgorithmsFinance use-signal-windowPrimitive window helpers for signal slices108MIT OR Apache-2.0AlgorithmsScience use-similaritySimilarity relation helpers for RustUse geometry119MIT OR Apache-2.0MathematicsScience use-simple-filterPrimitive moving-average and first-order filter helpers107MIT OR Apache-2.0AlgorithmsScience use-simplexSimplex primitives for the RustUse geometry workspace118MIT OR Apache-2.0MathematicsScience use-simulationComposable facade crate for RustUse simulation primitives82MIT OR Apache-2.0AlgorithmsScience use-simulation-clockDeterministic simulation clock helpers107MIT OR Apache-2.0AlgorithmsScience use-simulation-resultSummary helpers for finite simulation result series111MIT OR Apache-2.0AlgorithmsMathematics use-sitemapSitemap entry primitives and XML-safe formatting helpers for RustUse104MIT OR Apache-2.0Parser implementationsWeb programming use-slugComposable slug and URL-safe text primitives for RustUse.111MIT OR Apache-2.0Text processing