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.
flatbox_coreProvides core functionality for Flatbox engine3,420Unlicense
flatbox_ecsProvides ECS functionality for Flatbox engine3,143Unlicense
flatbox_eguiEgui binding for Flatbox engine1,919Unlicense
flatbox_macrosFlatbox engine procedural macros1,921Unlicense
flatbox_physicsProvides physics for Flatbox engine1,902Unlicense
flatbox_renderProvides rendering functionality for Flatbox engine2,538Unlicense
flatbox_systemsECS systems for Flatbox engine1,945Unlicense
flatbuffersOfficial FlatBuffers Rust runtime library.87,208,649Apache-2.0
flatbuffers-buildA library that facilitates generating flatbuffer code from Rust68,959MIT
flatbuffers-ownedA Rust crate that enables a more flexible usage of FlatBuffers.5,491MIT
flatbuffers-poolFlatBufferBuilder pool5,616Apache-2.0/MIT
flatbuffers-reflectionOfficial FlatBuffers Rust reflection library.47,547Apache-2.0
flatbuffers-retainedThis library allows a user to validate a flatbuffer once and the move it around or store it in a data structure without keeping…3,890BSD-2-Clause/MIT
flatbuffers-rustFlatBuffers in Rust (To be continue).3,509MIT/Apache-2.0
flatbuffers-tonicgRPC with flatbuffers for Rust.931MIT
flatbuffers-tonic-buildgRPC with flatbuffers code generator.847MIT
flatbuffers-toolsFlatbuffers utilities to simplify work with it1,576BSL-1.0
flatbuffers-utilflatbuffers utilities.1,273MIT
flatbuffers-verifierSupport library for the flatbuffers verifier generated by cfbc.36,982MIT
flatcVendored executable of flatbuffer's `flatc`.75,128MIT
flatc-forkVendored executable of flatbuffer's `flatc` (maintained fork).4,159MIT
flatc-rustFlatBuffers flatc command as API1,591,022MIT/Apache-2.0
flatccBuild-time convenience utilities for flatbuffers22,147MIT
flatcontainerA flat container representation for Rust158,682MIT OR Apache-2.0
flatcrawl-crawlerThis is a rust implementation of a set of webpage crawlers. New crawlers can be easily configured and the output can be written…1,717non-standard
flatdataRust implementation of flatdata343,886Apache-2.0
flate2DEFLATE compression and decompression exposed as Read/BufRead/Write streams.
Supports miniz_oxide and multiple zlib…580,516,314MIT OR Apache-2.0
flate2-crcSIMD acceleration for CRC-32 checksums used in the gzip format
**Deprecated in favor of the `crc32fast` crate**99,018MIT/Apache-2.0
flate2-exposeDEFLATE compression and decompression exposed as Read/BufRead/Write streams.
Supports miniz_oxide and multiple zlib…2,831MIT OR Apache-2.0
flate3High-performance RFC 1952 compression and de-compression44,714MIT OR Apache-2.0
flatfishA macro to write Fully Qualified Syntax without nesting turbofishes.1,500MIT OR Apache-2.0
flatfsA readonly filesystem.5,016MIT OR Apache-2.0
flatgeobufFlatGeobuf for Rust120,226BSD-2-Clause
flatgeomGeometry types using flat structures instead of jagged arrays11,536MIT
flatheadz-machine ZAP assembler1,791AGPL-3.0-or-later
flatipcZerocopy IPC between Xous clients and servers3,114BSD-2-Clause OR Apache-2.0 OR MIT
flatipc-deriveCustom derive for traits from the flatipc crate2,468BSD-2-Clause OR Apache-2.0 OR MIT
flatironA parser and HTML renderer for the Textile markup language8,051non-standard
flatkFlat layout abstraction toolkit.392,941MIT OR Apache-2.0
flatk-deriveDerive macros for deriving traits for [flatk](https:://crates.io/crates/flatk)387,778MIT OR Apache-2.0
flatlakeIn the works.12,875MIT
flatlandFlat panel UI client for Stardust XR like SimulaVR or xrdesktop11,978MIT
flatland-client-libFlatland3 remote game client library (TCP session, bots, game state)452MIT OR Apache-2.0
flatland-client-uiEngine-agnostic play client UI state (world grid, input, presentation)258MIT OR Apache-2.0
flatland-gfx-engineMacroquad + egui renderer for Flatland3 play client169MIT OR Apache-2.0
flatland-pathfindingShared grid A* pathfinding for Flatland3 clients and sim62MIT OR Apache-2.0
flatland-play-loopEngine-agnostic Flatland3 play session frame logic (gfx client)160MIT OR Apache-2.0
flatland-presentationGfx sprite mode resolution — maps game states to sprite sheet mode ids121MIT OR Apache-2.0
flatland-protocolFlatland3 wire protocol types and codecs494MIT OR Apache-2.0
flatland-tuiRatatui interface for Flatland3348MIT OR Apache-2.0
flatland3Flatland3 terminal play client and account CLI284MIT OR Apache-2.0
flatland3-gfxFlatland3 Macroquad + egui graphical play client131MIT OR Apache-2.0
flatlineAn async SSH-2.0 client library for Rust14,271MPL-2.0
flatline-umacRust bindings for UMAC (Universal Message Authentication Code)20MIT
flatludeProc-macro for prelude mods.542Unlicense
flatmapFast and Efficient Linear Map and Set for small collections85MIT
flatmarkdownFlat Markdown parser — outline format with blank-line-delimited blocks204MIT
flatpageA simple filesystem-based Markdown page loader4,470MIT
flatpakFlatpak library for Rust.65,247MIT
flatpak-rsFlatpak library for Rust.75,997MIT
flatpak-syslibflatpak FFI bindings1,217MIT
flatpak-unsandboxRun your flatpak app outside of the sandbox.1,505MIT
flatpak_aliaserSimple application that generates command aliases for flatpak packages1,466GPL-2.0
flatpak_gtk_themera tool to apply gtk themes to flatpak applications for DE's that dont support themeing automatically2,899GPL-3.0
flatplaySimple CLI tool to build and run Flatpak applications.3,292MIT
flatrPrints JSON files in a flat format.1,511MIT
flatr_coreCore library for flatr65LicenseRef-Proprietary
flatr_dataflatr Data: A Flat Data Buffer22LicenseRef-Proprietary
flatr_derivederive macros for flatr67LicenseRef-Proprietary
flatrecordCompact, schema-described binary record encoding with a derive macro.20MIT OR Apache-2.0
flatrecord-deriveDerive macro for the flatrecord crate.29MIT OR Apache-2.0
flatrvA cross-platform RISC-V interpreter that implements the RV32IM instruction set.3,658MIT
flatsflattens nested structures into a flat single dimension map2,936MIT
flattedSerialize and parse JSON with circular and shared references38MIT
flattenTuple flatteing for rust.6,755Apache-2.0/MIT
flatten-directorymove all files from sub-directories to target directory, then remove all directories recursively1,131MIT
flatten-json-objectTiny Rust library for flattening JSON objects205,757MIT
flatten-projectFlattens nested project directories into a single directory with underscore-delimited filenames while preserving the original…934non-standard
flatten-rustHigh-performance codebase flattening tool in Rust224MIT
flatten-serde-jsonFlatten serde-json objects like elastic search267,630WTFPL
flatten_dirRecursive directory flattener2,241MIT
flatten_jsonLib to flatten nested JSON2,445MIT
flatten_objectsA container that stores numbered objects. Each object can be assigned with a unique ID.130,999GPL-3.0-or-later OR Apache-2.0 OR MulanPSL-2.0
flatten_overlapping_rangesFlatten overlapping ranges into a sequence of sections.2,036ISC
flatten_structsAllows inlining fields into another struct.866MIT
flatterA command line utility for rendering PNGs from SVGs1,903non-standard
flatterer-webJSON flatterer UI35,948MIT
flattiversePlaceholder. See the 'flattiverse_connector' crate for the connector for the flattiverse.com game server.1,960MIT
flattiverse_connectorConnector library for the flattiverse.com game server.34,093MIT
flattreeA series of functions to map a binary tree to a list5,538MIT
flattyFlat message buffers13,558MIT/Apache-2.0
flatty-baseFlatty traits and primitives14,841MIT/Apache-2.0
flatty-ioFlat message transfer12,827MIT/Apache-2.0
flatty-macrosFlatty procedural macros13,196MIT/Apache-2.0
flatty-portableFlatty portable trait and primitives11,953MIT/Apache-2.0
flatvecAn indirection-collapsing container that stores all its elements in at most 2 allocations4,888MIT OR Apache-2.0
flatzincA FlatZinc parser50,558MIT
flatzinc-serdeFlatZinc serialization and deserialization12,555MPL-2.0
flav-md-enginemarkdown parse with css style. Rust implementation for flav-md(https://github.com/jiko21/flav-md)1,621non-standard
flavioflavio welcomes you40,611GPL-3.0
flavorA simple app that returns a card title and any flavor text from a random card from Magic: The Gathering, Arkham Horror TCG or…107MIT
flavorcliA command line interface to interact with FlavorTown174GPL-3.0-or-later
flavortown_readerRead Flavortown Devlogs41MIT
flavoursAn easy to use base16 scheme manager/builder that integrates with any workflow.26,247MIT
flawEmbedded signal filtering, no-std and no-alloc compatible.8,394MIT OR Apache-2.0
flawlessToolkit for writing durable execution workflows in Rust.23,756BSD-2-Clause-Patent
flawless-httpHTTP client for https://flawless.dev.9,970BSD-2-Clause-Patent
flawless-macrosMacros for flawless.24,038BSD-2-Clause-Patent
flawless-slackTransport protocol agnostic Slack client for Rust.6,722BSD-2-Clause-Patent
flawless-utilsUtility tools for integrating flawless workflows into Rust projects.3,472BSD-2-Clause-Patent
flawless-wasabiA WebAssembly ABI for flawless, inspired by io_uring.24,140BSD-2-Clause-Patent
flawzA Terminal UI for browsing CVEs12,377MIT OR Apache-2.0
flaxAn ergonomic archetypical ECS22,059MIT
flax-deriveDerive macros for flax13,975MIT
flb-pluginFluent Bit plugin binding for Rust2,723MIT
flb-plugin-sysA auto-generated bindings for Fluent Bit plugin2,820MIT
flcardBarebones flashcard system1,571Apache-2.0
flcryptoCryptographic package for different algorithms2,786MIT OR Apache-2.0
fldtoolsLibrary to pack and unpack FLD files for use with Magical School Lunar! (1997)3,083LGPL-3.0
fleabagplaceholder for ongoing work13AGPL-3.0-only
fleabitRead and write unaligned bytes.3,362MIT OR Apache-2.0
fleascope-monitorLive Monitor for Fleascopes1,457MIT OR Apache-2.0
fleascope-rsLibrary to interact with a Fleascope2,549MIT OR Apache-2.0
flecheRemote job runner for Slurm clusters400GPL-3.0-or-later
fleckA uf2 font parser.5,746MIT
flecsRust bindings for the Flecs Entity Component System8,544MIT
flecs-sysProvides low-level bindings to the Entity Component System (ECS) framework flecs4,247MIT
flecs_ecsRust API for the C/CPP flecs ECS library <https://github.com/SanderMertens/flecs>10,293MIT
flecs_ecs_deriveA procedural macro crate for the Flecs ECS library.6,398MIT
flecs_ecs_syssys binding for C/CPP flecs ECS library <https://github.com/SanderMertens/flecs>8,840MIT
flectRust reflection [WIP]919GPL-3.0-only
flecxTBA1,272non-standard
flederfuchs-amqpAn AMQP Library for hosted environments9,632CC0-1.0
fledgeDev lifecycle CLI. One tool for the dev loop, any language.732MIT
fledgerThe fledger server as a CLI39MIT OR Apache-2.0
fleekImage steganography tool77MIT
fleek-blake3the BLAKE3 hash function forked for Fleek Network18,632CC0-1.0 OR Apache-2.0
fleetA client library for CoreOS's fleet.5,036MIT
fleet-api-rsFleet API structures generated by kopium from upstream CRDs39,063MIT OR Apache-2.0
fleet-bottleBottle protocol: inter-agent messaging for the SuperInstance fleet17MIT
fleet-bridgeBridge service connecting fleet with external systems17MIT OR Apache-2.0
fleet-buildAutomated Rust crate build, test, fix, and push CLI for agent workflows20MIT
fleet-conductorFleet orchestration conductor for distributed agent coordination16MIT OR Apache-2.0
fleet-configDeclarative fleet configuration management with validation17MIT OR Apache-2.0
fleet-conservationConservation law tracker: γ + η = C budget tracking for agent operations17MIT
fleet-coordinateFleet coordination via zero-holonomy consensus and Laman rigidity17MIT
fleet-coordinatorFleet node coordination: registration, health, task assignment, load balancing17MIT OR Apache-2.0
fleet-dedupDetect duplicate and near-duplicate repos in a fleet17MIT OR Apache-2.0
fleet-ensembleMulti-agent music coordination engine — the conductor for fleet-midi17MIT
fleet-event-routerEvent routing layer for fleet telemetry streams17MIT OR Apache-2.0
fleet-i2i-protocolInter-Agent Interaction protocol — multicast messaging for fleet coordination17MIT
fleet-manager-sdkA Rust client for interacting with the fleet manager API.2,880CC-BY-NC-ND-4.0
fleet-math-cC-compatible math primitives for fleet agents18MIT
fleet-metricsSome systeminfo for fleet-core957MIT
fleet-midi-harmonizerFour-part harmony generation from ternary vectors — species counterpoint for agent fleets17MIT
fleet-midi-pulseHeartbeat-driven timing layer for fleet-midi — BPM, swing, tempo ramps, fermata16MIT
fleet-routerReverse proxy and load balancer for the Antelope SHiP (State History Plugin) WebSocket protocol.18MIT
fleet-rsThe blazing fast build tool for Rust.12,618Apache-2.0
fleet-topologyFleet network topology with constraint-aware routing and holonomy verification21Apache-2.0
fleet-wardenAutomated disk cleanup daemon for WSL development environments19MIT
fleet_apiserverKubernetes apiserver for fleet7,315Apache-2.0
fleetcomA fleet-view supervisor for arbitrary shell commands.177GPL-3.0-or-later
fleetflowA beautiful container orchestration tool using KDL configuration70MIT OR Apache-2.0
fleetflow-atomCore functionality for FleetFlow342MIT OR Apache-2.0
fleetflow-configConfiguration management for FleetFlow216MIT OR Apache-2.0
fleetflow-containerContainer runtime integration for FleetFlow217MIT OR Apache-2.0
fleetfsFleetFS4,656Apache-2.0
fleetfs_raftThe rust language implementation of Raft algorithm.2,168Apache-2.0
fleetmacrosMacros for fleet608Apache-2.0
fleetmodKubernetes model for fleet1,699Apache-2.0
fleetreach-cliFleet-wide dependency security audit across 12 ecosystems from one CLI: deduplicated and ranked, with blast-radius analysis, a…44MIT OR Apache-2.0
fleetreach-coreDomain types for fleetreach + the shared toolchain-free OSV feeder scaffolding. No rustsec types in the public API.211MIT OR Apache-2.0
fleetreach-correlateCross-repo dedupe into findings with per-occurrence verdicts.54MIT OR Apache-2.0
fleetreach-ghactionsGitHub Actions ecosystem feeder for fleetreach: toolchain-free .github/workflows + OSV matching into the shared finding model.56MIT OR Apache-2.0
fleetreach-goGo ecosystem feeder for fleetreach: ingests govulncheck JSON into the shared finding model.57MIT OR Apache-2.0
fleetreach-hexHex (Elixir/Erlang) ecosystem feeder for fleetreach: toolchain-free mix.lock + OSV matching into the shared finding model.58MIT OR Apache-2.0
fleetreach-juliaJulia ecosystem feeder for fleetreach: toolchain-free Manifest.toml + OSV matching into the shared finding model.53MIT OR Apache-2.0
fleetreach-mavenMaven (Java) ecosystem feeder for fleetreach: toolchain-free gradle.lockfile/pom.xml + OSV matching into the shared finding model.58MIT OR Apache-2.0
fleetreach-npmnpm ecosystem feeder for fleetreach: toolchain-free package-lock.json + OSV matching into the shared finding model.58MIT OR Apache-2.0
fleetreach-nugetNuGet (.NET) ecosystem feeder for fleetreach: toolchain-free packages.lock.json + OSV matching into the shared finding model.54MIT OR Apache-2.0
fleetreach-packagistPackagist (Composer/PHP) ecosystem feeder for fleetreach: toolchain-free composer.lock + OSV matching into the shared finding…51MIT OR Apache-2.0
fleetreach-pypiPyPI ecosystem feeder for fleetreach: toolchain-free poetry.lock/uv.lock/Pipfile.lock + OSV matching into the shared finding…53MIT OR Apache-2.0
fleetreach-reachSafe orchestration of static reachability: parses the reach-driver call graph and computes Reachable/NotReachable/Unknown…67MIT OR Apache-2.0
fleetreach-reportSide-effect-free rendering of a FleetReport to table and JSON.59MIT OR Apache-2.0
fleetreach-rubygemsRubyGems ecosystem feeder for fleetreach: toolchain-free Gemfile.lock + OSV matching into the shared finding model.55MIT OR Apache-2.0
fleetreach-scanAll rustsec interaction: query advisories and map engine types to core.61MIT OR Apache-2.0
fleetreach-swiftSwift (SwiftURL) ecosystem feeder for fleetreach: toolchain-free Package.resolved + OSV matching into the shared finding model.52MIT OR Apache-2.0
fleetspeakA Fleetspeak client connector library for the Rust language.31,101MIT
fleetspeak-protoA Fleetspeak connector crate with Protocol Buffers messages.32,075MIT
flekA Rustacean implementation of my own algorithms to check for password security.6,756MIT
flemFlexible, Light-weight, Embedded Messaging Protocol6,795MIT
flem-serial-rsA serial port implementation of the FLEM protocol for host computers running Windows, Linux, or MacOS.7,406MIT
flemishAn Elmish architecture for fltk-rs20,669MIT
flensePurpose-oriented lensing108MIT OR Apache-2.0
flense-deriveDerive macros for flense `Adapter`/`Field` implementations45MIT OR Apache-2.0
flepFile transfer protocol (FTP) library7,241MIT
flep_protocolFile transfer protocol (FTP) library8,121MIT
flerpA terminal UI for exploring and analyzing text files, PDFs, and images3,494MIT
fleshFlora's LowRes Extensible Super Highway1,176MIT
flesh-reading-easeCalculate Flesh Reading Ease for a given text and language.1,285MIT