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.
synsertA primitive for writing structural search and replace programs for rust2,863MIT OR Apache-2.0
synstructureHelper methods and macros for custom derives574,479,309MIT
synstructure_test_traitsHelper test traits for synstructure doctests311,055MIT
syntaASN.1 parser, decoder, and encoder library with DER/BER support and C FFI2,598MIT OR Apache-2.0
synta-cborCBOR (RFC 8949) encoding and decoding for synta ASN.1 types123MIT OR Apache-2.0
synta-certificateX.509 certificate structures for synta ASN.1 library2,282MIT OR Apache-2.0
synta-cmcCMC (Certificate Management over CMS) protocol types — RFC 5272, RFC 640228MIT OR Apache-2.0
synta-codegenASN.1 schema parser and Rust code generator for the synta library2,486MIT OR Apache-2.0
synta-deriveDerive macros for the Synta ASN.1 library2,633MIT OR Apache-2.0
synta-ffiC FFI bindings for the Synta ASN.1 library280MIT OR Apache-2.0
synta-krb5Kerberos V5 and GSSAPI ASN.1 structures for the synta library618MIT OR Apache-2.0
synta-mtcMerkle Tree Certificates (MTC) implementation on synta1,184MIT OR Apache-2.0
synta-pythonPython extension module for the synta ASN.1 library307MIT OR Apache-2.0
synta-python-commonShared infrastructure for synta Python extension modules548MIT OR Apache-2.0
synta-python-krb5Python extension module for synta Kerberos V5 types230MIT OR Apache-2.0
synta-python-mtcPython extension module for synta Merkle Tree Certificates types235MIT OR Apache-2.0
synta-toolsCommand-line tools for inspecting and manipulating ASN.1 DER and PEM files281MIT OR Apache-2.0
synta-x509-verificationRFC 5280 X.509 certificate path validation using synta-certificate1,214MIT OR Apache-2.0
syntacksAn opinionated parser library for Rust3,106MIT OR Apache-2.0
syntactic-forA syntactic 'for' loop macro376,980MIT
syntactic_heapA framework designed for representing Abstract Syntax Trees5,781MIT OR Apache-2.0
syntagmaData Orchestration and Archive Repository41MIT
syntaqliteParser, formatter, validator, and language server for SQLite SQL — built on SQLite's own grammar1,469Apache-2.0
syntaqlite-buildtoolsInternal codegen and build tools for syntaqlite — not intended for direct use1,321Apache-2.0
syntaqlite-cliFast, accurate SQLite SQL formatter, validator, and language server — built on SQLite's own grammar1,150Apache-2.0
syntaqlite-commonInternal shared primitives for syntaqlite — not intended for direct use1,787Apache-2.0
syntaqlite-syntaxInternal parser and tokenizer for syntaqlite — not intended for direct use1,717Apache-2.0
syntarq-cliCommand-line interface for Syntarq identity management184MIT
syntarq-coreCore cryptographic identity and data management library for Syntarq207MIT
syntasticGeneric abstract syntax representation9,964MIT OR Apache-2.0
syntasticaModern and easy syntax highlighting using tree-sitter15,801MPL-2.0
syntastica-coreShared types and traits used by other syntastica crates15,890MPL-2.0
syntastica-highlightStripped-down and slightly modified fork of tree-sitter-highlight for use by syntastica16,448MIT
syntastica-macrosMacros for internal use in syntastica17,224MPL-2.0
syntastica-parsersCollection of tree-sitter parsers for syntastica, using parsers available on crates.io13,532MPL-2.0
syntastica-parsers-dynamicDynamically load tree-sitter parsers and queries at runtime for syntastica1,592MPL-2.0
syntastica-parsers-gitCollection of tree-sitter parsers for syntastica, fetching with git in the build-script6,577MPL-2.0
syntastica-queriesCollection of tree-sitter queries for syntastica16,276MPL-2.0
syntastica-query-preprocessorThe tree-sitter query pre-processor used by syntastica5,397MPL-2.0
syntastica-themesA collection of themes for syntastica16,228MPL-2.0
syntax-coreFast, multi-strategy parsing and transformation kit for Rust18AGPL-3.0-only
syntax-errorSyntax error report6,309MPL-2.0
syntax-htmlA simple cli application for generating syntax-highlighted HTML of code files47non-standard
syntax-langLossless concrete syntax tree (CST) with trivia.16Apache-2.0 OR MIT
syntax-parser-generatorIndependent library for generating lexical-analyzers and LALR parsers1,904MIT
syntax-rsA library for parsing programming languages.3,757MIT OR Apache-2.0
syntax-rustProvides highlighting for Rust code.8,225MIT OR Apache-2.0
syntax-treeTree structure managing syntax/format information for text6,953MIT
syntax-workout-coreWorkout tree algebra — represent any physical workout as a recursive tree37MIT OR Apache-2.0
syntax_ast_builderA libsyntax ast builder5,027MIT/Apache-2.0
syntaxdbSyntaxDb rest API client2,075MIT
syntaxdotNeural sequence labeler14,552MIT OR Apache-2.0
syntaxdot-cliNeural sequence labeler14,401MIT OR Apache-2.0
syntaxdot-encodersEncoders for linguistic features14,089MIT OR Apache-2.0
syntaxdot-summaryTensorBoard summary writer8,279MIT OR Apache-2.0
syntaxdot-tch-exttch path extension for partitioning parameters in groups12,657MIT OR Apache-2.0
syntaxdot-tokenizersSubword tokenizers11,555MIT OR Apache-2.0
syntaxdot-transformersTransformer architectures, such as BERT13,067MIT OR Apache-2.0
syntaxeSimple, declarative parser combinators976MIT
syntaxext_lintCommon lints for creating syntax extensions25,100MIT
syntaxfmtA derive macro-based library for flexible syntax tree formatting with pretty printing support.334MIT OR Apache-2.0
syntaxfmt-macrosProcedural macros for the syntaxfmt crate.499MIT OR Apache-2.0
syntectlibrary for high quality syntax highlighting and code intelligence using Sublime Text's grammars20,822,573MIT
syntect-5-no-panictemporary fork of Syntect1,120MIT
syntect-assets[syntect](https://github.com/trishume/syntect) syntax and theme assets from [bat](https://github.com/sharkdp/bat).25,332MIT OR Apache-2.0
syntect-no-panictemporary fork of Syntect73,636MIT
syntect-tuiA lightweight translation layer between syntect.rs and Ratatui style types58,267MIT
syntect_minecraft_highlightingHighlight code with Minecraft formatting1,006Unlicense
synterRust SDK for the Synter cross-platform advertising API (Google, Meta, LinkedIn, Microsoft, Reddit, TikTok, X).12MIT
syntermA Rust library for making beautiful REPLs and Shells with fish like as you type syntax highlighting18,159MIT
syntesuiteTODO16,064CECILL-C
syntexA library that enables compile time syntax extension expansion2,039,514MIT/Apache-2.0
syntex_bitflagsInternal library to help compile syntex_syntax4,605
syntex_errorsBackport of librustc_errors3,048,787MIT/Apache-2.0
syntex_fmt_macrosExport of fmt_macros code generation149,985MIT/Apache-2.0
syntex_posBackport of libsyntax_pos3,052,692MIT/Apache-2.0
syntex_syntaxBackport of libsyntax3,548,901MIT/Apache-2.0
syntex_syntax2Backport of libsyntax131,232MIT/Apache-2.0
syntextHybrid code search index for agent workflows2,399MIT
synthA polyphonic Synth type whose multiple oscillators generate sound via amplitude and frequency envelopes.61,224MIT
synth-aiRust SDK for Synth AI - serverless post-training APIs447MIT
synth-ai-coreRust core for Synth AI SDKs - API client, streaming, tracing, and tunnels155MIT
synth-backendARM encoder, ELF builder, vector table, linker scripts, and MPU configuration2,405Apache-2.0
synth-backend-aarch64AArch64 (A64) host-native backend for synth — integer subset (milestone 1, #538)949Apache-2.0
synth-backend-awsmaWsm backend integration for the Synth compiler1,985Apache-2.0
synth-backend-riscvRISC-V encoder, ELF builder, PMP allocator, and bare-metal startup for synth2,404Apache-2.0
synth-backend-waskerWasker backend integration for the Synth compiler1,981Apache-2.0
synth-cfgControl flow graph representation for the Synth compiler3,902Apache-2.0
synth-cliCLI for Synth, the WebAssembly-to-ARM Cortex-M AOT compiler1,876Apache-2.0
synth-coreCore types, error handling, and backend trait for the Synth compiler4,624Apache-2.0
synth-frontendWASM/WAT parser and module decoder frontend for the Synth compiler2,334Apache-2.0
synth-musicA framework-like crate to compose and synthetisize music4,134MIT
synth-optPeephole optimization passes for the Synth compiler3,716Apache-2.0
synth-synthesisWASM-to-ARM instruction selection and peephole optimizer3,449Apache-2.0
synth-utilsMusic synthesizer utilities and modulation sources4,087MIT
synth-verifySMT translation validation for the Synth compiler (ordeal QF_BV engine; optional Z3 differential oracle)2,004Apache-2.0
synth_ai_core_typesShared type definitions for Synth AI SDKs205MIT
synthahol-babylonRead presets for the Babylon synthesizer3,278MIT OR Apache-2.0
synthahol-dx7Read presets for the Yamaha DX7 synthesizer3,559MIT OR Apache-2.0
synthahol-phase-plantRead and write Phase Plant presets7,568MIT OR Apache-2.0
synthaxSynthesize syntax with quasiquoting plugins.21,372Apache-2.0
synthclawLightweight synthetic data generation library/CLI.73MIT
synthdbThe Universal Database Seeder. Production-grade synthetic data generator for PostgreSQL. Zero config, context-aware.115MIT
synthecaContent-addressable storage on top of apotheca. Bytes go in, BLAKE3 hash comes out; the underlying cella's compare-and-swap pinax…285MIT OR Apache-2.0
syntheonBuild script utilities shared across sys crates.1,232AGPL-3.0-only
synthesizesynthesize crate - placeholder23MIT OR Apache-2.0
synthesizerCompose and Manage Data Pipelines1,482MIT OR Apache-2.0
synthesizer-coreShared typed-AST primitives for the pleme-io synthesizer family46MIT
synthetify-exchangeSynthetify synthetic assets exchange1,599non-standard
synthettoGenerate synthetic traces for Google's Perfetto trace viewer.1,468MIT OR Apache-2.0
synthezSteroids for `syn`, `quote` and `proc-macro2` crates.15,992,718BlueOak-1.0.0
synthez-codegenInternal codegen shim of `synthez` crate.16,008,563BlueOak-1.0.0
synthez-coreInternal implementations of `synthez` crate.16,005,177BlueOak-1.0.0
synthieChiptune-focused synthesizer engine: dual OSC, ring mod, filters, envelopes, LFO, arpeggiator, and FX (reverb, delay, chorus,…197EUPL-1.2
synthizerbindings to Synthizer, a library for 3D audio and effects28,292Unlicense
synthizer-sysLow-level bindings to Synthizer, a library for 3D audio and effects27,922Unlicense
synthmergeAI-powered git mergetool that resolves conflicts using LLMs26GPL-3.0-or-later OR AGPL-3.0-or-later
synthphonia-rsDryadSynth solver for string transformation programs1,332MIT
synthzipconstructs synthetic Central Directories when missing from otherwise-valid ZIP data1,968MIT
syntiaA lightweight toolkit for building lexers and parsers in Rust.45MIT
syntopicA package that serves as an interface for topic files.420MIT
syntreeA memory efficient syntax tree for language developers.346,974MIT OR Apache-2.0
syntree_layoutA library to visualize trees from the 'syntree' crate.264,627MIT OR Apache-2.0
syntropySyntropy is a TUI tool boasting a fleshed out, neovim like, plugin framework. It's mainly envisioned to work with handling data,…75MIT
synwireConvenience re-exports and reference implementations for Synwire22MIT OR Apache-2.0
synwire-agentAgent runtime implementations for synwire141MIT OR Apache-2.0
synwire-agent-skillsAgent skills runtime for Synwire following the agentskills.io specification86MIT OR Apache-2.0
synwire-checkpointCheckpoint traits and in-memory implementation for Synwire81MIT OR Apache-2.0
synwire-checkpoint-sqliteSQLite checkpoint backend for Synwire23MIT OR Apache-2.0
synwire-chunkerTree-sitter AST-aware code chunking for Synwire semantic search267MIT OR Apache-2.0
synwire-coreCore traits and types for the Synwire AI framework858MIT OR Apache-2.0
synwire-daemonSingleton background daemon for Synwire — manages embeddings, indexing, and multi-repo state26MIT OR Apache-2.0
synwire-dapDebug Adapter Protocol integration for Synwire agents136MIT OR Apache-2.0
synwire-deriveProcedural macros for Synwire (#[tool], #[derive(State)])23MIT OR Apache-2.0
synwire-embeddings-localLocal embedding and reranking for Synwire using fastembed76MIT OR Apache-2.0
synwire-indexSemantic index pipeline for Synwire VFS providers207MIT OR Apache-2.0
synwire-llm-ollamaOllama provider for Synwire78MIT OR Apache-2.0
synwire-llm-openaiOpenAI provider for Synwire78MIT OR Apache-2.0
synwire-lspLanguage Server Protocol integration for Synwire agents136MIT OR Apache-2.0
synwire-mcp-adaptersHigh-level MCP adapters: multi-server client, tool conversion, interceptors, and provider abstraction87MIT OR Apache-2.0
synwire-mcp-serverStandalone MCP server binary exposing Synwire tools via stdio transport23MIT OR Apache-2.0
synwire-orchestratorGraph-based orchestration engine for Synwire22MIT OR Apache-2.0
synwire-sandboxPlatform-specific sandbox backends for synwire agents132MIT OR Apache-2.0
synwire-storageConfigurable persistent storage layout, project identity, and migration for Synwire311MIT OR Apache-2.0
synwire-vectorstore-lancedbLanceDB vector store for Synwire semantic search77MIT OR Apache-2.0
synx-cliSYNX CLI — parse, validate, convert, diff, query, compile .synx files.16MIT
synx-coreSYNX — The Active Data Format. Core parser + engine with full !active support.248MIT
synx-formatSYNX — The Active Data Format (meta crate). Re-exports synx-core under a format-oriented crate name.52MIT
sypexgeoPure-Rust reader for the SypexGeo binary IP-to-geo database20MIT
syphonVersatile metrics processor, proxy and forwarder"
syphon is designed to accept and route metrics traffic.
Metrics can be received…1,630non-standard
syphon-coreCore Objective-C bindings for Syphon on macOS260MIT
syphon-metalMetal and IOSurface utilities for Syphon205MIT
syphon-rsRust bindings for the Syphon macOS inter-application video sharing framework48MIT AND BSD-3-Clause
syphon-wgpuHigh-level wgpu integration for Syphon172MIT
syrMatrix maths library3,181Apache-2.0
syraSyRA: Sybil-Resilient Anonymous Signatures with Applications to Decentralized Identity1,969Apache-2.0
syrac-scoreParagliding time attack scoring14,204GPL-3.0-only
syracuseA simple and (relatively) well-polished cli application used to keep track of your day to day productivity.1,120non-standard
syretteThe convenient dependency injection framework17,465MIT OR Apache-2.0
syrette_macrosMacros for Syrette, the convenient dependency injection framework18,175MIT OR Apache-2.0
syrialA Rust library for streaming and serialization1,552MIT
syrial-deriveProcedural macros for the syrial serialization library517MIT
syrillianMagically simple 2D & 3D game engine built on top of wgpu4,290MIT
syrillian_assetAsset Types and Store for the Syrillian Game Engine330MIT
syrillian_componentsBuilt-In components for the Syrillian Game Engine149MIT
syrillian_macrosMacros used by the Syrillian game engine1,939MIT
syrillian_renderRenderer of the Syrillian Game Engine258MIT
syrillian_sceneScene/Asset Loader for the Syrillian Game Engine58MIT
syrillian_shadergenMaterial Shader Compiler and Generator for the Syrillian Game Engine395MIT
syrillian_utilsUtilities used by the Syrillian game engine2,241MIT
syringeA library providing simple Windows DLL injection and an example injector application1,807GPL-3.0
syringe-diA compile-time dependency injection framework for Rust2,653MIT
syringe-di-deriveMacros for syringe, a compile-time dependency injection framework2,631MIT
syronSyron is a Rust library for building, training and running basic neural networks2,823MIT OR Apache-2.0
syrosSyros - Distributed Coordination Service360MIT
syrupSimple abstraction around pancurses for chat-like interfaces4,168MIT/Apache-2.0
syrup-cpiAutogenerated CPI client for the Syrup program.2,824Apache-2.0
sysCapability-based System Interfaces6,242MIT OR Apache-2.0 OR LGPL-2.1-or-later
sys-callSystem call macro for Rust3,752MIT
sys-compareTrack Filesystem Integrity via 'Snapshots' which contain a HashMap of the files and their corresponding hash signature from a…16,635MIT
sys-datetimedatetime6,458MIT
sys-file-manager-path获取 Mac Finder、Windows Explore 窗口的路径40MIT
sys-gmshBindings for the GMSH C library866GPL-2.0-or-later
sys-infoGet system information in Rust.
For now it supports Linux, Mac OS X, illumos, Solaris, FreeBSD, OpenBSD, and Windows.33,180,712MIT
sys-info-collectfetch system infos1,517MIT OR Apache-2.0
sys-info-extendedThis crate is a fork of https://crates.io/crates/sys-info crate and extended version of it.21,725MIT
sys-info-rsWarning: This package has already moved to sys-info.4,790MIT
sys-kaleidosys-kaleido provides one-stop management for some new opensource system tools, such as ls, rm, cp .etc.6,486MIT
sys-libbgpstreamIncorrect name for libbgpstream-sys2,556BSD-3-Clause
sys-localeSmall and lightweight library to obtain the active system locale26,034,094MIT OR Apache-2.0
sys-measuresystem measurement library for Rust835MIT
sys-mountHigh level FFI binding around the sys mount & umount2 calls3,994,623MIT OR Apache-2.0
sys-mumuSystem calls and tools plugin for the Mumu ecosystem1,946MIT OR Apache-2.0
sys-resource-managerA system resource manager displaying system info.41MIT
sys-rsptrace-based Linux system tool reimplementations: strace, gcov, addr2line, debugger40MIT
sys-shredA forensic-grade, multi-threaded command-line utility for secure file erasure and anti-forensics.98MIT
sys-timeLightweight Date and time library.7,592Apache-2.0 OR MIT
sys-voiceCross-platform native voice I/O with OS-level Acoustic Echo Cancellation98MIT
sys2mqttSystem monitoring and reporting to MQTT1,671MIT
sys_allocLow-level system allocator primitives895MIT OR Apache-2.0