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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.

postcard-bytesA no_std + serde compatible message library for Rust (+ faster byte array (de-)serialization)16,008MIT OR Apache-2.0Embedded developmentNo standard library postcard-cobsThis is an implementation of the Consistent Overhead Byte Stuffing (COBS) algorithm. COBS is an algorithm for transforming a…1,876,119MIT OR Apache-2.0 postcard-coreA no_std compatible message library for Rust20,572MIT OR Apache-2.0Embedded developmentNo standard library postcard-deriveA no_std + serde compatible message library for Rust - Derive Crate3,022,171MIT OR Apache-2.0Embedded developmentNo standard library postcard-derive-ngA no_std + serde compatible message library for Rust - Derive Crate1,477MIT OR Apache-2.0Embedded developmentNo standard library postcard-dynDynamic ser/de for postcard22,912MIT OR Apache-2.0Embedded developmentNo standard library postcard-dyn-ngDynamic ser/de for postcard494MIT OR Apache-2.0Embedded developmentNo standard library postcard-heapless-compatan adapter to use postcard with heapless >= 0.82,200MIT OR Apache-2.0 postcard-rpcA no_std + serde compatible RPC library for Rust203,329MIT OR Apache-2.0Embedded developmentNo standard library postcard-schemaReflection-like schemas for postcard types254,357MIT OR Apache-2.0Embedded developmentNo standard library postcard-schema-ngReflection-like schemas for postcard types1,370MIT OR Apache-2.0Embedded developmentNo standard library postcard2A no_std + serde compatible message library for Rust65,854MIT OR Apache-2.0Embedded developmentNo standard library postcard2-eiopostcard2 extensions crate25MIT OR Apache-2.0Embedded developmentNo standard library postcard2-heaplesspostcard2 extension crate31MIT OR Apache-2.0Embedded developmentNo standard library postchain-clientJust another Chromia Postchain client implemented in Rust.3,448MIT OR Apache-2.0 postchain-client-deriveChromia Postchain client derive.1,239MIT OR Apache-2.0 postcodePostcode & Geolocation API for the UK3,443GPL-3.0 postcode-nlAsync client for the free Netherlands postcode API at https://postcode.tech2,679MIT postcode-validatorper-country postal code format validation20MITInternationalization (i18n)Text processing postcode_extractorA simple tool to extract and identify postcodes1,385MITText processing postcompileHelper crate for post-compiling Rust code.9,229MIT OR Apache-2.0 postcrate-coreEmbeddable SMTP capture engine: server, multi-mailbox lifecycle, chaos simulation, SQLite persistence, HTTP API.44MITDevelopment tools::TestingEmail postcss🚀 Fast and 100% API compatible postcss replacer2,840MIT postcss_value_parserTransforms css values into the tree1,616MIT PostDadA high-speed, local-first Terminal UI (TUI) for testing APIs.194MITCommand line utilitiesDevelopment tools poste-cliCLI for Poste: run HTTP/SQL/Redis requests from file buffers16MITCommand line utilitiesDatabase interfaces poste-coreCore parsing, SQL context detection, and environment logic for Poste50MITCommand line utilitiesParser implementations poste-execProtocol execution engine for Poste: HTTP, Redis, PostgreSQL, MySQL, SQLite32MITCommand line utilitiesDatabase interfaces postelHigh level server for hyper and tower.1,512MITAsynchronousNetwork programming posterMQTTv5 client library written in Rust.7,126MITAsynchronousNetwork programming poster_generatorA poster generation library based on Skia Safe with RTL text support for Arabic, Hebrew, Persian, and Uyghur627MITGraphicsMultimedia::Images posternEngine client18MIT posterustCommand-line utility to make value-limited, posterized images from existing pictures. Based on a brightness scale with values…1,745MIT OR Apache-2.0GraphicsMultimedia::Images postfactoReserved1,824AGPL-3.0+ postfixPostfix expression evaluator5,612MITAlgorithms postfix-log-parser高性能模块化Postfix日志解析器,经3.2GB生产数据验证,SMTPD事件100%准确率4,467MIT OR Apache-2.0Development toolsParsing tools postfix-macrosPostfix macros on stable Rust, today7,171MIT OR Apache-2.0 postfix-macros-implProc macro crate for postfix-macros8,014MIT OR Apache-2.0 postfix_assertTrait implementations of common assertions in (postfix) method style for the Rust standard library. This allows for assertions to…2,802MITDevelopment toolsDevelopment tools::Debugging postfix_policyA Postfix SMTP access policy delegation handler. It handles protocol parsing and response sending to talk to Postfix.5,788LGPL-3.0-or-later postfix_ratelimitA Postfix milter for rate limiting.59GPL-3.0-only postform_decoderDecoder for the Postform logging framework, an efficient logging framework for mcu's8,847MIT OR Apache-2.0Embedded development postform_persistDecodes persistent logs for Postform, an efficient logging framework for mcu's5,212MIT OR Apache-2.0Embedded development postform_rttDecodes Rtt logs for Postform, an efficient logging framework for mcu's5,360MIT OR Apache-2.0Embedded development postform_serialDecodes persistent logs for Postform, an efficient logging framework for mcu's2,899MIT OR Apache-2.0Embedded development postgisAn extension to rust-postgres, adds support for PostGIS.1,006,993MIT postgis-butmaintainedAn extension to rust-postgres, adds support for PostGIS.1,079MIT postgis_dieselAn extension for Diesel framework to support PostGIS geometry datatype.794,547MIT postgresA native, synchronous PostgreSQL client15,968,669MIT OR Apache-2.0Database interfaces postgres-binary-copySupport for binary-format COPY query execution with postgres23,244MIT postgres-conn-strPostgreSQL-compatibly idiosyncratic connection string parsing. Forked from pg-connection-string2,604AGPL-3.0-or-later postgres-cursorCursor abstraction for PostgreSQL12,237MITDatabase interfaces postgres-deriveAn internal crate used by postgres-types10,717,914MIT OR Apache-2.0 postgres-derive-codegenDeriving codegen support for Postgres enum, domain, and composite types15,968MIT/Apache-2.0 postgres-derive-internalsUnstable internals library used by postgres-derive and postgres-derive-codegen10,793MIT/Apache-2.0 postgres-derive-macrosDeriving macro support for Postgres enum, domain, and composite types10,756MIT/Apache-2.0 postgres-derivesParsing rows from postgres to structs and multiple utilities for https://github.com/sfackler/rust-postgres1,623MIT postgres-dvPostgres Data Viewer with powerful CLI and rich data visualization.105non-standard postgres-esA Postgres implementation of an event repository for cqrs-es.77,441Apache-2.0 postgres-es2A Postgres implementation of an event store for cqrs-es2.5,213MIT postgres-extensionWrite PostgreSQL extensions in rust3,203PostgreSQL OR MIT postgres-extension-macromacro crate for postgres-extension3,160PostgreSQL OR MIT postgres-from-rowDerivable trait that allows converting a postgres row to a struct338,404non-standardData structuresDatabase interfaces postgres-from-row-deriveInternal proc-macro crate for postgres-from-row338,987non-standardData structuresDatabase interfaces postgres-inetCIDR/INET support for rust-postgres38,595Apache-2.0Database interfacesNetwork programming postgres-json-deriveDerive macro for implementing ToSql and FromSql for a struct1,538MIT postgres-kotlin-genGenerate kotlinx.serialization data classes from a Postgres/Supabase schema17MITCommand line utilitiesDevelopment tools postgres-lspLanguage Server Protocol implementation for PostgreSQL and PL/pgSQL100BSD-3-Clause postgres-lsp-analysisSymbol extraction, workspace index, and name resolution for PostgreSQL212BSD-3-Clause postgres-lsp-formatSQL formatting for the PostgreSQL LSP, powered by libpgfmt161BSD-3-Clause postgres-lsp-parsePostgreSQL/PL-pgSQL document model with incremental tree-sitter parsing261BSD-3-Clause postgres-lsp-schemaLive PostgreSQL database introspection via pg_catalog160BSD-3-Clause postgres-mapperStruct mapping for postgres.3,702ISC postgres-mapper-derivePostgres struct mapper proc-macro.3,711ISC postgres-mcpA PostgreSQL MCP (Model Context Protocol) server implementation for building AI agents2,411MITDevelopment tools postgres-mcp-rsRust PostgreSQL MCP server for AI agents (stdio, sqlx, rmcp)44MITCommand line utilitiesDatabase interfaces postgres-mumupostgrtes-mumu is a plugin for the mumu ecosystem1,395MIT OR Apache-2.0ConcurrencyData structures postgres-named-parametersA lightweight macro wrapper around the `postgres` crate which gives you the ergonomics of named parameters in your raw SQL queries1,687MITDatabase interfacesTemplate engine postgres-named-parameters-deriveDerive macros used internally by `postgres-named-parameters`. You should not use this crate directly; instead, use…1,987MITDatabase interfacesTemplate engine postgres-native-tlsTLS support for tokio-postgres via native-tls4,834,656MIT OR Apache-2.0 postgres-notifyLibrary that makes it easy to subscribe to PostgreSQL notifications4,492MITDatabase interfacesDevelopment tools::Debugging postgres-opensslTLS support for tokio-postgres via openssl4,305,062MIT OR Apache-2.0 postgres-parserAn llvm-based safe wrapper for PostgresSQL's query parser. Currently based on v1324,616PostgreSQL postgres-proto-rsA crate that helps you parse the postgres wire protocol1,550MIT postgres-protocolLow level Postgres protocol APIs60,483,688MIT OR Apache-2.0 postgres-protocol-sm3Low level Postgres protocol APIs with sm32,260MIT OR Apache-2.0 postgres-querybuilderA simple tool to help you build your postgres queries easily7,022MIT postgres-replication-typesTypes for Postgres Replication Protocol2,786MITDatabase interfacesEncoding postgres-serviceParse Postgres service configuration files17,586BSD-2-Clause postgres-sharedInternal crate used by postgres and postgres-tokio789,279MIT postgres-static-analyzer-ddl-catalog-structsDDL-only struct definitions for postgres catalog tables.96MIT postgres-static-analyzer-reflectReflection functions to read from postgres catalog tables and produce DDL-only structs.19MIT postgres-static-analyzer-reflect-queriesReflection queries for postgres-static-analyzer.57MIT postgres-syntaxCompile-time syntax checking of PostgreSQL queries8,404MIT/Apache-2.0 postgres-sysPostgreSQL include files processed with bindgen.1,717PostgreSQL OR MIT postgres-tx-retryTransaction retry helpers for PostgreSQL compatibale databases5,512MIT postgres-typesConversions between Rust and Postgres values59,632,484MIT OR Apache-2.0Database interfaces postgres-types-extraConversions for rust and postgres types320non-standard postgres-utilPostgreSQL utility library.3,838PostgreSQL OR MIT postgres_allocUse the PostgreSQL allocator from Rust!2,661Apache-2.0/MIT postgres_arrayArray support for rust-postgres179,447MIT postgres_extrasProvides extentions and utilites for working with postgres.1,564MIT postgres_extras_macrosProc macros for postgres_extras create.2,085MIT postgres_large_objectLarge object support for rust-postgres25,437MIT/Apache-2.0 postgres_macrosA set of support macros for rust-postgres37,476MIT/Apache-2.0 postgres_migratorSimple postgres raw sql migration generator and manager.8,477MITCommand line utilitiesDatabase interfaces postgres_moneyA library to generate and parse Postgres money types.13,613non-standardData structuresParser implementations postgres_queryWrite and execute SQL queries with ease23,182MIT OR Apache-2.0 postgres_query_deriveDefine SQL queries with human-readable parameter names3,019MIT OR Apache-2.0 postgres_query_macroWrite and execute SQL queries with ease17,855MIT OR Apache-2.0 postgres_queueA library for managing and executing tasks in a PostgreSQL-backed queue1,562MIT postgres_rangeRange support for rust-postgres112,947MIT postgres_rustlsTLS support for tokio-postgres via tokio-rustls.27,568MIT OR Apache-2.0AsynchronousDatabase interfaces postgres_secretsSecure access to Postgres credentials.72,453UnlicenseDatabase interfaces postgres_syncA synchronous PostgreSQL client using std::net, with an API compatible with the popular postgres crate.1,736MIT OR Apache-2.0Database interfaces postgres_to_polarsStream PostgreSQL query results directly into Polars DataFrames via sqlx.2,880Apache-2.0Database interfacesScience postgres_to_polars_deriveDerive macro for postgres_to_polars. Do not use directly.209Apache-2.0 postgresfixtureEasily create and manage PostgreSQL clusters on demand for testing and development.10,770Apache-2.0Command line utilitiesDatabase interfaces postgresql-cst-parserAn unofficial PostgreSQL CST parser written in Pure Rust.1,450non-standardParser implementations postgresql-mcpPostgreSQL 18.4 catalog MCP server, generated by mcpify.11MITAPI bindingsCommand line utilities postgresql-schema-upgraderA robust, safety-first library for managing PostgreSQL database schema migrations with both sync and async support.60MITDatabase interfaces postgresql-to-amqpPostgreSQL to AMQP, forward PostgreSQL notifications to an AMQP queue.8,260MITDatabase interfaces postgresql_archiveA library for downloading and extracting PostgreSQL archives2,566,551(Apache-2.0 OR MIT) AND PostgreSQLDatabase interfaces postgresql_commandsPostgreSQL commands for interacting with a PostgreSQL server.2,552,388(Apache-2.0 OR MIT) AND PostgreSQLDatabase interfaces postgresql_embeddedInstall and run a PostgreSQL database locally on Linux, MacOS or Windows. PostgreSQL can be bundled with your application, or…2,540,089(Apache-2.0 OR MIT) AND PostgreSQLDatabase interfaces postgresql_extensionsA library for managing PostgreSQL extensions20,885(Apache-2.0 OR MIT) AND PostgreSQLDatabase interfaces postgrestPostgREST client-side library265,222Apache-2.0 OR MITDevelopment tools postgrest-parserPostgREST URL-to-SQL parser for Rust and WASM54MITDatabase interfacesParser implementations postgrest-queryA type-safe query builder-esque experience via PostgREST1,476MIT postgrest-query-parserParser for the postgres query parameters1,515MIT postgrpcA JSON-transcoding-ready gRPC server for querying Postgres databases4,219MIT postguardTest Postgres-compatible statements against a set of CORS-like rules1,651MIT posthogPostHog Rust SDK22MIT posthog-cliThe command line interface for PostHog 🦔5,921MIT posthog-replay-anonymizerPII scrubber for rrweb session-replay events: text/URL redaction, native image blur, and canvas/cv neutralization51MIT posthog-rsThe official Rust client for Posthog (https://posthog.com/).1,238,273MIT posthog-symbol-dataA shared library for serialising/deserialising PostHog symbol data330,811MIT posthog-unofficialAn unofficial Rust client for Posthog (https://posthog.com/).3,157MIT posthog514client-rsA Rust client for PostHog analytics6,800MITAPI bindings posthornSelf-contained email pen-pal daemon for slow self-hosted LLMs.16Apache-2.0 posthubifyThe official Rust SDK for the PostHubify /v1 API (thin client + complete operation catalog).18MITAPI bindings postingsInverted-index postings lists and codecs.1,127MIT OR Apache-2.0AlgorithmsText processing postiopostio - Encrypted file sender/queue/receiver using an AWS S3 backend5,911non-standard postitTask manager on your CLI.5,735MIT OR Apache-2.0Command line utilities postject_sysUnofficial bindings for postject9,899MPL-2.0 postloopPost-commit Loop - Local Git auto-deployment tool22MIT postmanPostman client, generated from the OpenAPI spec.5,176MIT postman-apiPostman client, generated from the OpenAPI spec.3,823MIT postman-pop3postman-pop3 is the pop3 proto support for postman5,327Apache-2.0 postman-tuiA simple API client (postman like) in your terminal932MIT OR Apache-2.0Command line utilitiesNetwork programming postman2openapiConvert a Postman collection to an OpenAPI definition.56,538Apache-2.0 postman2openapi-cliConvert a Postman collection to an OpenAPI definition.8,275Apache-2.0 postman_collectionA Postman Collection serialization & deserialization library.4,926MIT postmarkPostmark rust client220,043MIT OR Apache-2.0API bindingsEmail postmark-clientPostmark API client using reqwest5,410MITAPI bindings postmillAPI for interfacing with Postmill forums20,521GPL-3.0 postmodernPostgres-backed job queue with transaction-based locking.211MIT OR Apache-2.0AsynchronousDatabase interfaces postmodern-cliCLI for postmodern job queue management.126MIT OR Apache-2.0Command line utilitiesDatabase interfaces postmortemA validation library that accumulates all errors for comprehensive feedback85MITData structuresRust patterns postofficethis is a light weight tcp connection manager, including client and server side functions to communicate at high speed long…20,076non-standardAPI bindingsWeb programming::HTTP client postonYet another Fluentd logger for Rust216,141MITNetwork programming postportPublish your backend documentation from a Postman Collection as a static website with an interactive API1,615MIT postquetPostQuet: Stream PostgreSQL tables/queries to Parquet files seamlessly with this high-performance, Rust-based command-line tool.1,462Apache-2.0Command line utilitiesDatabase interfaces postrepA clustering tool for PostgreSQL, based on Etcd1,591MIT/Apache-2.0 postroAsynchronous Postgres Driver and Utility1,095MITDatabase interfaces postro-macrosPostro Proc Macro1,324MITDatabase interfaces postrsA tool for interacting with Postman collections in Rust.1,534MIT postrust-authJWT authentication for Postrust504MIT postrust-coreCore library for Postrust - PostgREST-compatible REST API for PostgreSQL590MIT postrust-graphqlGraphQL support for Postrust190MIT postrust-lambdaAWS Lambda adapter for Postrust92MIT postrust-proxyHigh-performance reverse proxy module for Postrust with load balancing and automatic TLS10MIT postrust-responseResponse formatting for Postrust (JSON, CSV, OpenAPI)406MIT postrust-serverHTTP server for Postrust using Axum88MIT postrust-sqlType-safe SQL builder for Postrust676MIT postrust-workerCloudflare Workers adapter for Postrust91MIT postscriptThe package provides a parser of PostScript fonts.5,422,489Apache-2.0/MITParsing tools postsseSimple HTTP server that lets subsribe for data with GET requests (as text/event-stream SSE) and emit data with POST requests1,563MIT OR Apache-2.0Command line utilitiesNetwork programming poststation-api-icdAPI types for poststation5,785MIT OR Apache-2.0 poststation-cliA CLI tool for poststation7,572MIT OR Apache-2.0 poststation-fw-icdThe firmware interface definition for Poststation888MIT OR Apache-2.0 poststation-sdkAn API SDK for poststation6,695MIT OR Apache-2.0 poststation-sim-icdThe simulator interface definition for Poststation867MIT OR Apache-2.0 posturepositional posture of spatial robot1,620MITScience::Robotics posturnBuild turn-based games with `async` Rust3,841MITAsynchronousGame development postvanA minimalistic implementation of pub/sub messaging230MITConcurrency postviewA quick file viewer for the Symplasma ecosystem.21BSD-3-ClauseCommand line utilities postwomanAPI tester and debugger for your CLI6,324GPL-3.0-only posumpos protocol server1,528MIT posy[wip] Python installer and package manager1,584MIT OR Apache-2.0 potA concise binary serialization format written for `BonsaiDb`.509,758MIT OR Apache-2.0Encoding pot-conditionerSignal conditioner for analog potentiometer readouts.1,526MITEmbedded developmentHardware support pot-headA no_std Rust library for processing raw potmeter inputs in embedded systems60MIT OR Apache-2.0Embedded developmentNo standard library pot-o-coreCore types and utilities for PoT-O (Proof of Tensor Optimizations)949GPL-3.0CryptographyDevelopment tools pot-o-extensionsDeFi, staking, and external-chain extensions for the PoT-O validator108MITCryptography::CryptocurrenciesDevelopment tools pot-o-miningMining coordination and neural-path logic for PoT-O224GPL-3.0CryptographyDevelopment tools pot-o-validatorPoT-O (Proof of Tensor Optimizations) Validator Service24MITCryptography::CryptocurrenciesDevelopment tools pot-rsUtility modules and functions useful to interact with the pot framework2,399non-standard pota-adif-uploadCLI tool and library to upload ADIF files to Parks on the Air (POTA)98MITCommand line utilities potassiumA lean and mean job scheduler300MITAsynchronousConcurrency