CATEGORIES
Browse by category
103 of crates.io’s 104 defined categories have at least one published crate in this snapshot.
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.
API bindings12,402 crates
Accessibility596 crates
Aerospace215 crates
Aerospace::Aerospace protocols25 crates
Aerospace::Aerospace simulations26 crates
Aerospace::Drones35 crates
Aerospace::Space protocols24 crates
Aerospace::Unmanned aerial vehicles17 crates
Algorithms7,448 crates
Artificial intelligence155 crates
Asynchronous9,790 crates
Authentication2,312 crates
Automotive31 crates
Caching945 crates
Command line utilities27,786 crates
Command-line interface3,344 crates
Compilers2,341 crates
Compression1,326 crates
Computer vision566 crates
Concurrency3,422 crates
Configuration2,182 crates
Cryptography6,603 crates
Cryptography::Cryptocurrencies2,657 crates
Data structures10,114 crates
Database implementations1,313 crates
Database interfaces5,301 crates
Date and time788 crates
Development tools19,246 crates
Development tools::Build Utils1,203 crates
Development tools::Cargo plugins785 crates
Development tools::Debugging1,708 crates
Development tools::FFI894 crates
Development tools::Procedural macro helpers1,202 crates
Development tools::Profiling882 crates
Development tools::Testing2,431 crates
Email543 crates
Embedded development6,261 crates
Emulators561 crates
Encoding6,158 crates
External FFI bindings2,269 crates
Filesystem3,464 crates
Finance1,240 crates
GUI3,805 crates
Game development3,503 crates
Game engines1,226 crates
Games1,263 crates
Graphics2,904 crates
Hardware support4,116 crates
Internationalization (i18n)769 crates
Localization (L10n)462 crates
Mathematics4,394 crates
Memory management1,342 crates
Multimedia1,956 crates
Multimedia::Audio1,918 crates
Multimedia::Encoding501 crates
Multimedia::Images1,500 crates
Multimedia::Video649 crates
Network programming12,150 crates
No standard library11,888 crates
No standard library::No dynamic allocation1,340 crates
Operating systems1,722 crates
Operating systems::Android APIs10 crates
Operating systems::FreeBSD APIs17 crates
Operating systems::Linux APIs570 crates
Operating systems::Unix APIs496 crates
Operating systems::Windows APIs552 crates
Operating systems::macOS APIs545 crates
Parser implementations5,896 crates
Parsing tools5,204 crates
Rendering1,595 crates
Rendering::Data formats189 crates
Rendering::Graphics APIs289 crates
Rendering::Rendering engine197 crates
Rust patterns3,906 crates
Science10,187 crates
Science::Bioinformatics225 crates
Science::Bioinformatics::Genomics57 crates
Science::Bioinformatics::Proteomics18 crates
Science::Bioinformatics::Sequence analysis51 crates
Science::Computational Biology3 crates
Science::Computational Biology::Structural Modeling9 crates
Science::Computational Chemistry4 crates
Science::Computational Chemistry::Cheminformatics24 crates
Science::Computational Chemistry::Electronic Structure2 crates
Science::Computational Chemistry::Molecular Simulation7 crates
Science::Geospatial549 crates
Science::Materials Science3 crates
Science::Neuroscience38 crates
Science::Quantum Computing8 crates
Science::Robotics717 crates
Security391 crates
Simulation1,973 crates
Template engine761 crates
Text editors1,157 crates
Text processing4,995 crates
Value formatting696 crates
Virtualization364 crates
Visualization1,486 crates
Web programming8,910 crates
Web programming::HTTP client1,580 crates
Web programming::HTTP server2,195 crates
Web programming::WebSocket507 crates
WebAssembly4,138 crates