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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.

sig_rp2040_appletApplet library for matrix board381MIT Graphics Parsing tools sig_rp2040_board_appletApplet library for matrix board1,421MIT Graphics Parsing tools sig_rp2040_interfaceCommunicate with FW_LED_Matrix_Firmware890MIT Graphics Parsing tools sig_rp2040_matrix_boardServer for applets on framework LED Matrix1,522MIT Graphics Parsing tools sig_runtimeHigh-performance columnar runtime for sigc trading signal execution118MIT Command line utilities Development tools sig_typesCore type definitions for the sigc quantitative finance DSL418MIT Command line utilities Development tools sigalignA Similarity-Guided Alignment Algorithm13,114MIT Science sigalign-coreA core crate for sigalign3,775MIT sigalign-implA crate for implementations for core3,504MIT sigalign-utilsA crate for utils for core3,353MIT siganA Rust command-line time tracker compatible with sigye file storage.56MIT Command line utilities sigarRust bindings for libsigar for gathering system information.4,815MIT sigar-rsHigh level wrapper for sigar, on top of the crate sigar-sys.1,898MIT API bindings sigar-sysLow level bindings to sigar.5,716MIT External FFI bindings sigcA Rust-based quantitative finance platform with a DSL for trading signals and backtesting28MIT Command line utilities Development tools sigchldwaiting for SIGCHLD from many threads at once16,749,696MIT sigenA simple static site generator9,296ISC Command line utilities Parsing tools sigfigsSigfigs takes a value and returns the number of significant figures that number has. Sigfigs also can take a value and a number…22MIT sigfinnLifecycle manager for spawning tasks35,720MIT Asynchronous siggyTerminal-based Signal messenger client with vim keybindings716AGPL-3.0-only Command line utilities sighHTTP signature generation and verification for ActivityPub, using OpenSSL7,218MIT Cryptography Network programming sighashdbsighashdb is a collection of anchor instruction sighashes commonly seen acrossa variety of anchor based programs57,745MIT/Apache-2.0 sighashdb-clicli tool for computing anchor instruction sighashes3,144MIT/Apache-2.0 sighookAn Apple/Linux/Android runtime instrumentation and inline hooking crate for aarch64 and x86_64.1,800LGPL-2.1-only sightThis crate has a new maintainer and is currently being updated. If you're interested in tracking progress, check out the github…3,397Apache-2.0 sightglassA benchmark suite and tool to compare different implementations of the same primitives1,977Apache-2.0 WITH LLVM-exception OR MIT sightglass-apiProvides Rust bindings to the sightglass-next API.7,393Apache-2.0 WITH LLVM-exception OR MIT sightlineRead-only AWS state observation TUI. Name reserved; under active development.14MIT OR Apache-2.0 sigiAn organizing tool for terminal lovers who hate organizing58,829GPL-2.0-only Command-line interface sigid-coreZero-dependency, no_std core for Sigid - 26-char Crockford Base32 identifiers29MIT OR Apache-2.0 Algorithms Data structures sigid-enterpriseEnterprise-grade SigID generator with worker ID, coordination, and UUID compatibility23MIT OR Apache-2.0 Algorithms Data structures sigid-flexibleConfigurable SigID generator with custom length, alphabet, and prefixes31MIT OR Apache-2.0 Algorithms Data structures sigilSimple and bad library for fetching unicode character names and some other stuff.5,685Unlicense sigil-agent-hooks-coreRust client for Sigil pre-tool authorization76MIT sigil-agent-hooks-ironclawIronClaw hook adapter for Sigil pre-tool authorization37MIT sigil-cliAutomated security auditing for AI agent code - quarantine-first scanning for pip, npm, git repos, and MCP servers60Apache-2.0 Command line utilities Development tools sigil-clientClient for the Solana Sigil token program1,442non-standard sigil-oracleOracle - Language Server Protocol implementation for Sigil42MIT Development tools Text editors sigil-parserParser and native compiler for the Sigil programming language241MIT Compilers Development tools sigil-protocolSIGIL — Sovereign Identity-Gated Interaction Layer. An open protocol for securing AI agent-to-tool interactions.316EUPL-1.2 Authentication Cryptography sigil-rssmall and fast identicon generator1,445BSD-3-Clause Graphics Multimedia::Images sigil-stitchType-safe, import-aware, width-aware code generation for multiple languages1,775MIT OR Apache-2.0 Development tools sigil-stitch-macrosProc macros for sigil-stitch code generation1,892MIT OR Apache-2.0 Development tools sigilforge-clientClient library for Sigilforge authentication daemon253MIT OR Apache-2.0 API bindings Authentication sigillumSecure secret management with hardware-backed encryption22MIT OR Apache-2.0 Authentication Cryptography sigillum-cliCommand-line interface for Sigillum vault management22MIT OR Apache-2.0 Command line utilities Cryptography sigillum-clientClient SDK for connecting to a Sigillum vault daemon21MIT OR Apache-2.0 API bindings Cryptography sigillum-coreCore traits and file-backed implementation for Sigillum secret management437MIT OR Apache-2.0 Cryptography sigillum-daemonSigillum vault daemon with web UI and REST API21MIT OR Apache-2.0 Cryptography Web programming sigillum-fido2FIDO2 hardware key unlock and Shamir secret sharing for Sigillum25MIT OR Apache-2.0 Authentication Cryptography sigillum-sdkEmbeddable SDK for Sigillum vault integration22MIT OR Apache-2.0 API bindings Cryptography sigillum-serverSigillum vault server library for custom deployments21MIT OR Apache-2.0 Cryptography Web programming sigilyxReader and writer for Alteryx .yxdb (E1, with experimental E2 read) files.145Apache-2.0 Encoding Parser implementations sigiosignal-based async io1,434MIT Asynchronous sigitsiGit Code — ACP-compatible AI coding agent. Sí, git.283Apache-2.0 Command line utilities siglip2-naflexRust ONNX inference library for SigLIP2 NaFlex (image+text embeddings)17MIT OR Apache-2.0 Multimedia::Images Science siglogA minimal Tessera-compatible transparency log server24BSD-3-Clause Command line utilities Cryptography sigmaSigma σ is a Simple, Safe and Fast Template language7,220MIT sigma-boundedBounded Vec, String, and map types abstracting alloc vs heapless491MIT OR Apache-2.0 Data structures Embedded development sigma-compilerCrate for automatically generating code for sigma zero-knowledge proof protocols of more complex statements than are supported by…2,509MIT sigma-compiler-coreCore functionality for the macros in the sigma-compiler crate2,841MIT sigma-compiler-deriveDerive macros for the sigma-compiler crate2,682MIT sigma-enumA macro to simulate sigma types with enums.63MIT/Apache-2.0 Data structures Rust patterns sigma-enum-macrosProcedural macros for `sigma_enum`.166MIT/Apache-2.0 Data structures Rust patterns sigma-httpSigma-http is a web framework1,191MIT sigma-proof-compilerA Rust library for creating and verifying sigma protocols (zero-knowledge proofs of knowledge) using symbolic computation over…198Apache-2.0 sigma-proof-compiler-deriveDerive macros for sigma-proof-compiler347Apache-2.0 sigma-proofsA toolkit for auto-generated implementations of Σ-protocols2,426MIT OR Apache-2.0 Cryptography sigma-protocolsSIGMA zero-knowledge proof protocols537MIT Cryptography sigma-rsA Rust implementation and parser of Sigma rules2,351 MIT sigma-rustA library for parsing and evaluating Sigma rules to create custom detection pipelines61,769MIT OR Apache-2.0 Data structures Parser implementations sigma-serErgo binary serialization primitives49,046CC0-1.0 sigma-servesigma-serve-rs is a simple, lightweight HTTP server written in Rust.1,000MIT sigma-test-utilTest utilities for Ergo10,815CC0-1.0 sigma-traceMonitor Linux executables with an interface easier than strace(1)5,926MIT sigma-typesTypes checked for an invariant.23,767MPL-2.0 Data structures Development tools sigma-types-macrosMacros to enhance the `sigma-types` crate983MPL-2.0 Development tools::Procedural macro helpers Development tools::Testing sigma-utilErgo primitives42,913CC0-1.0 sigma-webSigma-web is a web framework1,198MIT sigma67abc23MIT sigma_dbrust database library. documentation at https://malawarecreator.github.io/sigmadb-doc2,150MIT sigma_funA framework for making Sigma protocols fun!139,9540BSD Cryptography sigmahCreate and scan binary signature in Rust efficiently13,141MIT Algorithms No standard library::No dynamic allocation sigmapMaps process signals from one to another1,601MIT sigmarsA library for sigmahq rule collections3,694MIT sigmashakeSigmaShake — AI-native infrastructure platform22MIT Development tools sigmashake-agentSigmaShake — AI-native infrastructure platform22MIT Development tools sigmashake-cliSigmaShake — AI-native infrastructure platform23MIT Development tools sigmashake-coreSigmaShake — AI-native infrastructure platform21MIT Development tools sigmashake-sdkSigmaShake — AI-native infrastructure platform22MIT Development tools sigmashake-ssgAI Agent Governance CLI — evaluate tool calls against rules, block dangerous operations. Installer wrapper around the prebuilt…173LicenseRef-SigmaShake-Proprietary Command line utilities Development tools sigmatchA memory signature search library for the Windows platform written in Rust.7,275MIT Operating systems::Windows APIs sigmateA modern, developer-focused CLI for cryptographic file signing and verification.370MIT sigmdWindows API signature metadata21MIT sigmfA Rust library for interacting with SigMF recordings,2,997MIT sigmoid-freudA therapeutic roleplay assistant for exposure therapy, social anxiety practice, and communication skills development using LLMs751Apache-2.0 Command line utilities Games sigmoid-q15Fonction d'activation Sigmoid en virgule fixe Q15 pour systèmes embarqués `no_std`, zéro dépendance système19GPL-2.0-or-later Embedded development Mathematics sigmuta state management framework designed to be used as a foundation for UI frameworks.2,490MIT OR Apache-2.0 Rust patterns sigmut-macrosa state management framework designed to be used as a foundation for UI frameworks.2,784MIT OR Apache-2.0 signA sign enum for writing direction-generic algorithms.633MIT Data structures Rust patterns sign-boundLayout-optimized positive and negative integers4,371MIT sign-fileA CLI used to sign kernel module, alternative to sign file script of kernel.1,538GPL-3.0-or-later sign-in-with-appleSign In With Apple Validation in Async Rust9,738MIT Asynchronous Web programming sign-in-with-apple-fixedSign In With Apple Validation in Async Rust - fixed1,569MIT Asynchronous Web programming sign-loggerThe only logger youll ever need, inspired by sign-logger on NPM1,611MIT sign-txsSign transactions with bitcoind in a container78MIT sign_mailA simple async library for sending and receiving packets over tcp.4,944GPL-2.0 signalThe higher-level abstractions around unix signals431,715MIT/Apache-2.0 signal-auditorAn implementation of the Third-Party Auditor role for the Signal Key Transparency Log.452AGPL-3.0-only Command line utilities Cryptography signal-backtracePrint a backtrace even when a fatal signal is received.1,613MIT Development tools signal-backup-decodeA simple tool to decode signal backups17,263GPL-3.0 signal-childA little library to easily signal other process with no dependencies103,021MIT Operating systems Operating systems::Unix APIs signal-cli-apiNative REST + WebSocket API bridge for signal-cli97MIT Command line utilities Web programming::HTTP server signal-cli-jsonrpc-clientJSON-RPC client for signal-cli daemon420MIT OR Apache-2.0 Network programming signal-crypto-syftVendored libsignal crypto crate for syft4,684AGPL-3.0-only signal-engineSignal impact analysis and systemd detection for the peek process intelligence tool280MIT Command line utilities Operating systems::Linux APIs signal-filtersFilters library, including biquad, moving average, low-pass, and notch filters.616MIT OR Apache-2.0 Aerospace::Drones Embedded development signal-fish-clientTransport-agnostic Rust client for the Signal Fish multiplayer signaling protocol404MIT Game engines Network programming signal-fish-client-godotGodot WebSocket transport adapter for the Signal Fish client SDK75MIT Game engines Network programming signal-fish-serverA lightweight, in-memory WebSocket signaling server for peer-to-peer game networking110MIT Game engines Network programming signal-futureFuture that can be resolved via a controller11,687Apache-2.0 signal-gatewayGateway service for Signal messaging with AI assistant integration229MIT OR Apache-2.0 Network programming signal-gateway-assistantAI assistant traits and types for signal-gateway504MIT OR Apache-2.0 Asynchronous signal-gateway-assistant-claudeClaude AI implementation of signal-gateway-assistant133MIT OR Apache-2.0 Asynchronous signal-gateway-binConfigurable binary for signal-gateway monitoring service26MIT OR Apache-2.0 Command line utilities signal-gateway-code-toolCode fetching tool for signal-gateway-assistant AI integration133MIT OR Apache-2.0 Development tools signal-gateway-log-ingestLog ingestion endpoints (syslog, JSON) for signal-gateway134MIT OR Apache-2.0 Network programming signal-gen-cjds66-libAn unofficial support library which can fully remote control the inexpensive Koolertron DDS Signal Generator known as GH-CJDS66.10,330non-standard Embedded development Hardware support signal-handlerSignal Handler7,206Apache-2.0 OR MIT signal-hookUnix signal handling206,376,191MIT OR Apache-2.0 signal-hook-async-stdasync-std support for signal-hook572,823MIT OR Apache-2.0 signal-hook-mioMIO support for signal-hook93,863,012MIT OR Apache-2.0 signal-hook-registryBackend crate for signal-hook624,186,400MIT OR Apache-2.0 signal-hook-sysBackend crate for signal-hook, with some low-level C code3,490Apache-2.0/MIT signal-hook-tokioTokio support for signal-hook16,713,135MIT OR Apache-2.0 signal-jepa-rsSignalJEPA EEG Foundation Model — inference in Rust with Burn ML19Apache-2.0 Mathematics Science signal-kitHelpers for initializing OpenTelemetry-based observability (tracing, metrics, logs) in async Rust services.52MIT OR Apache-2.0 Asynchronous Development tools::Debugging signal-locateA tool to create a heatmap of wifi signal strength.545GPL-3.0-only signal-modCross-platform OS signal handling and graceful-shutdown orchestration for Rust. One API for SIGTERM, SIGINT, SIGHUP, SIGQUIT,…25Apache-2.0 Asynchronous Concurrency signal-msgHandle UNIX process signals with a shared channel4,576MIT Development tools signal-notifyCatch OS signals with standard mpsc channel58,471non-standard signal-scanList POSIX signal information for all processes on Linux3,041MIT OR Apache-2.0 Command line utilities Operating systems::Linux APIs signal-simpleLibrary to handle and send system signals7,250MIT signal-smoothFrame-rate independent signal smoothing primitives (damped spring, 1-Euro, EMA, deadzone)185MIT OR Apache-2.0 Algorithms Game development signal-spaceSignal Space graph, timeline, inspector, and intent types for Rust33MIT Data structures signal-stackInstall signal handlers using a stack-based model for cooperative signal handling2,488MIT OR Apache-2.0 signal-tlsdStandalone Rust implementation of Signal's domain fronting TLS proxy66MIT-0 signal-transformsA comprehensive Rust library for discrete and wavelet transforms, including DCT, Dct_2d, DWT2, and more.5,188MIT signal_functionsA crate for processing signals1,637LGPL-3.0-or-later signal_processingA signal processing library.7,526MIT Algorithms Computer vision signalai-quantSignalAI strategy-authoring API — the types you write a trading strategy against (Strategy, Ctx, Bar/Trade/Quote events,…35MIT API bindings Finance signalboolA simple crate to catch signals and set a boolean flag for later use.22,408BSD-3-Clause signalboxTUI to manage Railway projects74MIT signalbusSignalBus is a lightweight, local-first developer framework for structured signals and events. It enables processes, scripts, and…187GPL-3.0 signald-rustA library to interface with Signald8,157MIT API bindings Asynchronous signaldock-coreShared domain types for the SignalDock agent messaging platform115MIT Data structures signaldock-paymentsx402 payment protocol for SignalDock agent services17MIT Network programming signaldock-protocolProtocol types, re-exports, and server-specific error types for SignalDock91MIT Network programming signaldock-sdkService layer and delivery orchestration for SignalDock19MIT Asynchronous Network programming signaldock-storageStorage traits and Diesel database adapters (SQLite + PostgreSQL) for SignalDock44MIT Database interfaces signaldock-transportTransport traits and delivery adapters (SSE, Webhook, WebSocket, HTTP/2) for SignalDock43MIT Asynchronous Network programming signaledA lightweight reactive programming library for Rust, providing a signal-slot mechanism.95MIT Data structures Rust patterns signalfutA future similar to tokio::signal::unix::Signal, but can be used with all the runtimes2,608Apache-2.0 Asynchronous signalingSignaling in Rust128MIT/Apache-2.0 Network programming signaling-protoSignaling Protobuf of AppRTC96MIT/Apache-2.0 Network programming signaljepaSignalJEPA EEG Foundation Model — inference in Rust with Burn ML245Apache-2.0 Mathematics Science signaljepa-rsSignalJEPA EEG Foundation Model — inference in Rust with Burn ML19Apache-2.0 Mathematics Science signalkA library to parse signalk maritime data19,803non-standard Data structures signalk-multidisplayA display instrument for SignalK (Sailing) data7,722ISC signallingA lightweight signal to (un)park a single thread1,815MIT OR Apache-2.0 signalmessagecounterRust CLI tool to count signal messages1,376BSD-2-Clause Command line utilities signaloA DSP toolbox with focus on embedded environments.17,509MPL-2.0 Algorithms Embedded development signalo_filtersA collection of filters used in 'signalo' umbrella crate.30,366MPL-2.0 Algorithms Embedded development signalo_pipesA collection of pipes used in 'signalo' umbrella crate.19,745MPL-2.0 Algorithms Embedded development signalo_sinksA collection of signal sinks used in 'signalo' umbrella crate.8,053MPL-2.0 Algorithms Embedded development signalo_sourcesA collection of signal sources used in 'signalo' umbrella crate.7,958MPL-2.0 Algorithms Embedded development signalo_traitsA collection of traits used in 'signalo' umbrella crate.23,622MPL-2.0 Algorithms Embedded development signaloxPure-Rust bacterial signal-peptide, cleavage-site and transmembrane-topology predictor: a compact CNN+CRF (architecture inspired…32MIT OR Apache-2.0 Command line utilities Science signalr-clientA Rust library for calling SignalR hubs, supporting JSON and MessagePack protocols, with WASM and native (Tokio) targets.11,608MIT Asynchronous Network programming signalr_rsSignalR client based on actix web client and async await14,169MIT signalrsdescription3,529MIT signalrs-clientSignalR client for Rust5,217MIT Network programming signalrs-client-custom-authSignalR client for Rust6,940MIT Network programming signalrs-deriveDerive macros for SignalR client for Rust5,477MIT Network programming signalrs-derive-custom-authDerive macros for SignalR client for Rust1,410MIT Network programming signalsA functional-reactive-like library for Rust that allows asynchronous chaining8,167MIT/Apache-2.0 Asynchronous Concurrency signals-but-a-little-nicerA wrapper around signal-handlers for Windows [console applications] and Unix programs.478MIT signals-kmanCallback library3,956GPL-3.0 signals-sdkSignals SDK — reconnecting SSE signal client for building reactive apps25MIT signals-typesSignal types for the Signals SDK — lightweight, serde-only extraction boundary94MIT signals2A thread-safe signal/slot library inspired by boost::signals215,536BSL-1.0 Concurrency signals_receiptsSimple exfiltration of the receipt of POSIX signals.23,543Unlicense Concurrency No standard library::No dynamic allocation signalscribeSignalScribe — Universal output engine.19LicenseRef-Proprietary Development tools signalsmith-stretchA wrapper for the Signalsmith Stretch timestretch and pitch-shifting algorithm65,647MIT signalspecEmpty crate, reserving name for https://github.com/signalspec/signalspec1,972MPL-2.0 signalstreamSend data over Unix signals. (Don't use this).26MIT signalvaultSignalVault — Desktop capture and provenance for governed work.19LicenseRef-Proprietary Development tools signalwireThe unofficial SignalWire SDK for Rust.11,6670BSD API bindings Asynchronous signalwire-sdkSignalWire AI Agents SDK for Rust — build AI voice agents, control live calls over WebSocket, and manage resources over REST.19MIT API bindings Web programming signatoryMulti-provider elliptic curve digital signature library with ECDSA and Ed25519 support45,786,101Apache-2.0 OR MIT Authentication Cryptography