All 305,250 crates, alphabetically

cheatCommand-line cheatsheets.2,246MIT cheat_checkerDetects similarities between sets of files15,167GPL-3.0 cheatreeA terminal-first cheatsheet system with tree-based YAML structure45MITCommand line utilities cheatsA game shell backend.8,577Apache-2.0Game development cheatscanA lightweight memory scanning library for Rust, C, and WASM. Implements classic cheat-engine style workflows with a stable,…33MIT cheb_ineqcdf and sf based on chebyshev's inequality1,502MIT chebyUnit-safe Chebyshev approximation and spectral numerics for Rust.2,222AGPL-3.0-onlyMathematicsScience chebyshevChebyshev polynomials2,736BSD-3-Clause checkConvenience assert!-like macros which return instead of panicking12,425MIT OR Apache-2.0 check-attA small script to check if a house has ATT fiber availible3,988non-standardCommand line utilities check-buddyThe main system of check buddy9,608non-standardAlgorithmsGames check-buddy-coreThe core system of check buddy, a chess engine6,438non-standard check-buddy-pgn-parserThe PGN parser for check buddy5,195non-standardGamesParser implementations check-commits-emailGit commit email validator --- Validate git commit emails against wildcard rules2,760AGPL-3.0-or-later check-configCheck configuration files.15,039MIT check-depruleA linter that enforces inter-crate dependency constraints in Cargo workspaces5,533MIT OR Apache-2.0Command line utilitiesDevelopment tools check-ends-macroA couple of macros to simulate match with starts and ends of a string.5,103MIT check-hashA small utility for checking file hashes1,565MIT OR Apache-2.0 check-hostA CLI and API Wrapper for https://check-host.net1,555MIT check-if-email-existsCheck if an email address exists without sending any email230,603AGPL-3.0Email check-if-email-exists-grpcA GRPC wrapper around check-if-email-exists6,829AGPL-3.0Email check-ignoreA simple command line tool for checking if files are ignored by patterns in a .gitignore file.1,678non-standardCommand line utilities check-jitterA monitoring plugin that measures network jitter.29,033ISC check-latestCheck if your rust executable is the latest available version41,623MIT OR Apache-2.0 check-linksCommand-line utility for finding stale links in documentation4,821MIT/Apache-2.0Command line utilities check-lockfile-intersectionTool for checking if the intersection of two Cargo.lock files have the same package versions1,851MIT OR Apache-2.0 check-macos-updatesA monitoring plugin to check if macOS system updates are available.13,411ISC check-macrosprocedural macros for check1,330BSD-2-Clause check-no-std-mathA tool to test if std float math functions are used, which can corrupt crossplatform deterministic1,516MITCommand line utilities check-runnerExecution backend and check normalization primitives for forge-engine84MIT check-runner-sysUnsafe syscall wrappers for check-runner process-group operations92Apache-2.0 check-statuscheck-status [url]601MIT check-symlinksCheck for broken symlinks9,485MIT check-the-tonectt - A CLI tool to check and improve the tone of your messages using local LLMs.50MITCommand line utilities check-tls-suitesDisplays TLS cipher suite names and recommendation status from IANA for a set of given ciphers18,226MIT OR Apache-2.0Command line utilities check-updatesCLI for checking for updates to your Cargo dependencies217MIT OR Apache-2.0 check-updates-cliCLI for checking for updates to your Cargo dependencies139MIT OR Apache-2.0 check-updates-coreShared core library for check-updates tools184MIT check-versionsSimple crate for ensuring that version numbers in README files are updated when the crate version changes.4,593MITDevelopment toolsRust patterns check_brandmeisterNagios plugin to check online status of a BrandMeister repeater.6,755MITCommand line utilities check_buildA tool to verify a VCF file against hg19 and hg38 references using a streaming, low-memory approach.7,513MIT check_elevationCheck if the current process is elevated. A successor to the `is_elevated` crate. Now no_std!65,403BSD-2-ClauseAuthenticationDevelopment tools check_hashesA fast and parallelized tool to detect duplicate files in a directory based on hashes.665MITCommand line utilitiesFilesystem check_inetAdaptive internet connectivity diagnostics that pinpoints which layer is broken13MIT OR Apache-2.0Command line utilitiesNetwork programming check_keywordA trait for String-like types to check if it is a keyword and convert it to a safe non-keyword if so.1,015,969MIT OR Apache-2.0Development tools::Procedural macro helpers check_mateCheck yourself before you wreck yourself.3,044MIT check_openai_modelsA TUI tool to check and display OpenAI models information2,423MITCommand line utilities check_sum检查文件的校验和2,981non-standard check_timed_logs_fastA nagios plugin which monitors log files for the occurrence of regular expressions.4,966MIT check_txtA powerful file security checker for TXT and EPUB files with virus scanning capabilities614MITCommand line utilitiesSecurity check_urlsVerify the validity of URLs inside your files10,843GPL-3.0-or-laterCommand line utilities checkalotRun a series of check commands on a repository (e.g. fmt/clippy/machete/deny)905MIT OR Apache-2.0Command line utilitiesDevelopment tools checkasmHelper to check stand-alone assembly functions, derived from dav1d1,781BSD-2-Clause checkasumA small utility to verify the data integrity of a downloaded file with its expected checksum.12,008MIT checkbookmarkbookmark URL validity checker TUI105MIT checkdigitCheck Digit Algorithms in Rust1,745MIT OR Apache-2.0 checke-rsFeature rich and easy to use checkers engine.1,553MIT checkedImplements a wrapper over the primitive Rust types that better indicates overflow during arithmetic.151,208MITData structures checked-enumProvides a trait `CheckedEnum` and a type `UncheckedEnum` which are useful when wrapping FFI libraries that use enums which you…13,340MIT checked-floatA crate for making invariant-enforcing floating point wrappers12,373MIT OR Apache-2.0 checked-rsA library for encoding validation semantics into the type system.11,547MIT OR Apache-2.0 checked-rs-macro-implImplementation of the procedural macros for checked-rs. This crate is not intended to be used directly.12,192MIT OR Apache-2.0 checked-rs-macrosProcedural macros for checked-rs. This crate is not intended to be used directly.11,862MIT OR Apache-2.0 checked_arrayA checked API for array types6,937BSD-2-Clause OR MITNo standard libraryRust patterns checked_castA small macro to deal with the libc typedef hell.8,388MIT/Apache-2.0 checked_clampClamp alternative that returns a result instead of panicking1,565MIT OR Apache-2.0No standard libraryNo standard library::No dynamic allocation checked_commandextension to `std::process::Command` which adds a output/status considering the programs `ExitStatus` for the returned Result32,508MIT OR Apache-2.0Operating systems checked_decimal_macroThis is a Rust fixed-point numeric library targeting blockchain development. Originally created and used as a part of the…5,698MIT checked_decimal_macro_coreA package for macro used in `checked_decimal_macro`7,734MIT checked_expra procedural macro for making writing checked_* chains more ergonomic8,065MIT OR Apache-2.0 checked_int_castConversions between primitive integers with overflow and underflow checking4,480,634MIT checked_numOverflow-checked numbers for safety without sacrificing ergonomics.4,314MITData structuresMathematics checked_opsAutomatic checked arithmetic operations in Rust31,279BSD-2-ClauseRust patterns checked_sumA library safely summing up iterators.1,298MIT checkeoThis is a function check to even or odd number.7,420MIT OR Apache-2.0 checkerA crates.io crate name availability checker4,601CC0-1.0Command line utilities checker-tema-3-sdAn interactive checker built for the 3rd homework at the data-structures course12,652MITCommand line utilities checkerboardCheckerboard detection algorithms implemented in rust.1,790MIT checkerplusImplementation of UdpSocket same as <k>TcpStream</k>1,261MIT checkerplusplusImplementation of UdpSocket same as <k>TcpStream</k>1,263MIT checkersA sanity checker for global allocations.436,687MIT OR Apache-2.0Development toolsMemory management checkers-macrosMacros for checkers, a sanity checker for global allocations.421,075MIT/Apache-2.0Development toolsMemory management checkexecConditionally run a command in a CLI (like Make, as a standalone tool)16,624MITCommand line utilitiesDevelopment tools checkfileA command line tool that logs the checksum and last 50 lines of each file in a folder.6,433GPL-3.0-or-laterCommand-line interfaceCommand line utilities checkgitExplore GitHub profiles and stats from your terminal74MITCommand line utilities checkgit_coreCore library powering the checkgit CLI for fetching GitHub profiles, repositories and contribution stats143MITCommand line utilities checkhostA CLI and API Wrapper for https://check-host.net2,097MIT checkingA simple data checker for Rust1,587MIT checkipRemote ip checker.1,647MIT checkitoA safe, efficient and simple QuickCheck-inspired library to generate shrinkable random data mainly oriented towards…58,022MITDevelopment tools::Testing checkito_macroA set of macros to accompany the `checkito` crate.15,591MITDevelopment tools::Testing checkleRun checks with compact, agent-friendly failure output44MIT OR Apache-2.0Command line utilitiesDevelopment tools checkleftExperimental repository convention checker; API and behavior may change without notice107Apache-2.0Command line utilitiesDevelopment tools checklinecheckline: checkbox line picker for stdin line input6,436MIT OR Apache-2.0 OR GPL-2.0 OR GPL-3.0Command line utilitiesText editors checklinks-rsRust port of upstream checklinks.awk — the tzdb Zone/Link graph consistency checker16Apache-2.0Command line utilitiesParser implementations checklintsCheck repositories against toml file(s) of constraints1,144MIT OR Apache-2.0 checklistA program to run through a checklist of manual and automated processes.6,023Apache-2.0 checklist-tuiA TUI for keeping track of your tasks in slim terminal views5,053MITCommand-line interface checkluhnValidate the Luhn algorithm for the given string2,449non-standardAlgorithms checkmRust library for CheckM genome assessor13,971GPL-3.0 checkmailA Simple Email Validation Library4,793MITNo standard library checkmail-rsRust package for email validation inspired by https://github.com/badoux/checkmail1,775MIT checkmalcheckmal17MIT checkmateA library for simulating Checkmate games7,160UnlicenseSimulation checkmate-cliCheckmate - API Testing Framework CLI23MIT checkmate-lspA LSP framework to run external check/sniff tools.2,831MITCommand line utilitiesDevelopment tools checkmyNetwork diagnostic toolkit42MIT checknow-rsRust port of upstream checknow.awk — the tzdb zonenow.tab consistency checker16Apache-2.0Command line utilitiesParser implementations checkoutRust implementation of the Checkout payment system8,626MIT checkout_controllera set of interfaces to create robust backends for a pleasant checkout experience9,226MIT checkout_corecore traits and structs for the checkout_controller crate183,458MIT checkout_server_derivea crate to generate state machines enforced at compile time144,156MIT checkpipePerform a computation over some bytes passing through some struct2,869MITCryptographyData structures checkpointUnmaintained10,036MIT/Apache-2.0 checkpoint-cliDon't lose your apps. Create a checkpoint for your Flatpaks.47GPL-3.0-or-laterCommand line utilitiesOperating systems::Linux APIs checkpoint-parserTypeScript/JavaScript parser for checkpoint-ts82GPL-3.0-or-later checkpoint-sharedShared types and utilities for checkpoint-ts141GPL-3.0-or-later checkpoint-tsInteractive checkpoint system for TypeScript/JavaScript development. Debug with TUI, inspect state, skip functions, inject values.61MITCommand line utilitiesDevelopment tools::Debugging checkpoint_deriveUnmaintained6,856MIT/Apache-2.0 checkpointkitCrash-resume checkpoint persistence with atomic writes and progress tracking18MIT OR Apache-2.0ConfigurationFilesystem checkpointqTool for establishing checkpoint quorum for finalized checkpoints across multiple checkpoint providers1,610MIT checkpwnCheck Have I Been Pwned and see if it's time for you to change passwords.54,205MITCommand line utilities checkpwn_libLibrary to interact with the HIBP API9,509MITCryptography checkrAn API client for Checkr47,105Apache-2.0 checksAdds several compile time checks for const generics10,831MITNo standard library checksecFast multi-platform (ELF/PE/MachO) binary checksec command line utility and library.23,706Apache-2.0Command line utilities checksmixA simplified MIX simulator - Donald Knuth's hypothetical computer for teaching and learning assembly language programming.480BSD-3-ClauseEmulatorsSimulation checksslCheck ssl certificate6,116MIT checkstream-classifiersML and pattern-based classifiers for toxicity, PII, and prompt injection detection142Apache-2.0AsynchronousText processing checkstream-coreCore types, token buffer, and error handling for CheckStream guardrail platform369Apache-2.0AsynchronousText processing checkstream-policyYAML-based policy engine for LLM safety rules, triggers, and actions114Apache-2.0AsynchronousText processing checkstream-proxyHigh-performance HTTP/SSE proxy server for LLM guardrails with sub-10ms latency23Apache-2.0AsynchronousText processing checkstream-telemetryHash-chained audit trail and Prometheus metrics for CheckStream114Apache-2.0AsynchronousText processing checkstyle_formattercheckstyle formatter.10,926MIT/Apache-2.0Development tools checksumCalculates crc32/crc64 file checksums written in Rust42,140MIT checksum-tapestryCollection of checksum algorithms and examples4,466MIT checksum_dirgenerate checksums of directories at compile time3,686MIT OR Apache-2.0 checksum_guiGUI tool for verifying file checksums using Slint and SHA-2.395MIT checksumdirCompute deterministic hash of a directory52,486MIT checksumsTool for making/verifying checksums of directory trees159,802MITAuthenticationFilesystem checktab-rsRust port of upstream checktab.awk — the tzdb zone/country table consistency checker16Apache-2.0Command line utilitiesParser implementations checktraitSimple tool for trait implementation check514non-standard checkupA simple & sleek utility to detect website changes and build shell pipelines1,880MIT checkup-insightxCode insight and metrics reporting for Rust workspaces15MIT OR Apache-2.0 checkup-lintxLint analysis and reporting for Rust workspaces15MIT OR Apache-2.0 checkup-macrosProcedural macros for the checkup workspace39MIT OR Apache-2.0 checkup-parsexSource parsing utilities for the checkup toolchain15MIT OR Apache-2.0 checkup-secxSecurity scanning and audit reporting for Rust workspaces15MIT OR Apache-2.0 checkup-testxTest discovery and reporting for Rust workspaces15MIT OR Apache-2.0 checkvistAn API client for https://checkvist.com1,690MITAPI bindings checkwrightName reservation for Checkwright — a coding-agent-assisted delivery methodology (gate SDK, evidence-stamped lifecycle, agent…18Apache-2.0 checsAn Entity-Component-System library.7,700AGPL-3.0-onlyGame development checs_procProcedural macros for Checs1,923AGPL-3.0-onlyGame development chectarineContent checker for source code & other text files1,576GPL-3.0-onlyDevelopment tools cheddarFunctional and practical GLSL superset DSL6,146BSD-3-ClauseRendering cheditA bare-bones retro GUI-based text editor with a tiny binary size and no syntax/coding features.74MITText editors cheersFullstack hypermedia framework for Rust.20MITWeb programming cheers-astInternal AST support crate for cheers.58MITWeb programming cheers-axumaxum 0.8 route handlers for cheers — OIDC login/callback (Google, Apple), passkey, magic-link wiring into a SessionAuthority.11MIT OR Apache-2.0AuthenticationWeb programming cheers-coreContract surface for cheers — identity types, error hierarchy, CredentialStore, and the keyless TokenMinter/TokenVerifier traits.…52MIT OR Apache-2.0Authentication cheers-macrosProcedural macros for Cheers.35MITWeb programming cheers-providersIdentity providers (OIDC, Apple Sign In, passkey, email magic-link, password, LAN-pair) and native credential stores built on…12MIT OR Apache-2.0Authentication cheers-redisredis-backed RefreshStore and Revocation impls for cheers — the TTL hot-path tier.11MIT OR Apache-2.0AuthenticationCaching cheers-serverOrigin-side surface for cheers — secret-key minter, symmetric codecs, UserStore/RefreshStore, refresh rotation, RevocationWriter,…17MIT OR Apache-2.0Authentication cheers-sqlxsqlx-backed UserStore / PasskeyCredentialStore / RefreshStore / Revocation impls for cheers — Postgres and SQLite backends.12MIT OR Apache-2.0AuthenticationDatabase interfaces cheers-storeDevice-tier credential storage (OS keyring, encrypted file) implementing cheers-core's CredentialStore — no token crypto.11MIT OR Apache-2.0Authentication cheers-verifyVerify-only surface for cheers — PasetoV4PublicVerifier (Ed25519 public key), RevocationReader, and the EdgeVerifier facade.…37MIT OR Apache-2.0Authentication cheese-paperOrganized writing tool with easy syncing and a simple file format23GPL-3.0-or-laterFilesystemText editors cheeseburgerThe Safe Script Execution Environment.935MIT cheesecakeMath animation engine24MITDevelopment toolsMathematics cheesecalcCalculations for sodium citrate mac and cheese1,590MIT cheetahAn extremely fast and flexible static site generator.10,644MIT cheetah-curveCheetah elliptic curve (sextic extension of the Goldilocks field) + Tip5 hash + Goldilocks field arithmetic — the cryptographic…80MIT OR Apache-2.0Cryptography cheetah-game-realtime-protocolUDP based Protocol with different guarantees. For PVP/PVE games and others.5,830MIT cheetah-stringA lightweight, high-performance string manipulation library optimized for speed-sensitive applications73,139MIT OR Apache-2.0Network programming cheetah_kvA simple thread-safe key/value store1,596MIT cheezitPlacholder1,146Unlicense/MIT chefModels for Chef Server objects3,801Apache-2.0 chef_apiClient for the Chef Server API4,036Apache-2.0 chefsatInteresting SAT solver1,886MIT chekAn assertions library.2,912CC0-1.0No standard library chekovCQRS/ES Framework4,519MIT OR Apache-2.0 chekov_macrosCQRS/ES Framework macros2,415MIT OR Apache-2.0 chelaHigh-performance Machine Learning, Auto-Differentiation and Tensor Algebra crate for Rust1,654MIT OR Apache-2.0Data structuresMathematics chelaeA toolkit for trimming and filtering FASTQ reads.18MITCommand line utilitiesScience::Bioinformatics chelateParser for a bunch of molecular file formats1,487MIT OR Apache-2.0Science chellFor now, a basic chat app. See README.1,619MIT cheloneA RDF(Resource Description Framework) 1.1 Turtle parser5,178MIT/Apache-2.0Parser implementationsWeb programming chemA cheminformatics library by Rust.4,583MITScience chem-eng-real-time-process-control-simulatorProcess Control Library (Chemical Engineering) with real time transfer function simulators7,880Apache-2.0Science chem-eqParse chemical equations and balance, get mol ratios and use ΔH9,822MIT chem-equationsCrate for parsing and balacing chemical equations20MIT chem-name-resolverPure-Rust IUPAC chemical name resolver → SMILES / molecular graph. WASM-compatible.121MIT OR Apache-2.0Parsing toolsScience chem-parseA parser for simple chemical forumulas.4,263MIT chem-rsA modern computational chemistry suite for Rust27MIT chem-wasm-lensUltra-lightweight WebAssembly kernel for cheminformatics: XYZ/PDB/SDF/SMILES/CML parsing, bond detection, ring & stereo analysis,…85MIT OR Apache-2.0AlgorithmsParsing tools chemaAn external DSL for JSON Schema14,065Apache-2.0/MITDevelopment tools chemapp_rsPort of ChemApp library (GTT-technologies) for thermodynamic calculations to Rust environment; includes native ChemApp functions…16MITAPI bindingsScience chematicA pure-Rust cheminformatics toolkit: SMILES/SMARTS, SDF/MOL V3000, ECFP/MACCS fingerprints, LogP/TPSA/QED, CIP stereo, MCS, 2D…2,330MIT OR Apache-2.0Parser implementationsRendering chematic-3d3D coordinate generation, DREIDING force field, velocity Verlet MD, PDB/XYZ I/O, conformer RMSD — pure Rust, WASM-compatible2,205MIT OR Apache-2.0ScienceScience::Computational Chemistry::Cheminformatics