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  1. tokio

    An event-driven, non-blocking I/O platform for writing asynchronous I/O backed applications

    v1.49.0 21.1M #async-io #async
  2. mio

    Lightweight non-blocking I/O

    v1.1.1 24.8M #async-io #async #non-blocking
  3. async-io

    Async I/O and timers

    v2.6.0 4.5M #iocp #epoll #kqueue #mio
  4. notify

    Cross-platform filesystem notification library

    v8.2.0 3.4M #filesystem-events #watch #events #filesystem
  5. polling

    Portable interface to epoll, kqueue, event ports, and IOCP

    v3.11.0 5.1M #iocp #kqueue #epoll #mio
  6. smol

    A small and fast async runtime

    v2.0.2 417K #networking #async #async-io-networking
  7. kqueue

    interface for BSDs

    v1.1.1 1.8M #bsd #kevent
  8. notify-debouncer-full

    notify event debouncer optimized for ease of use

    v0.6.0 314K #filesystem-events #watch #events #filesystem
  9. monoio

    A thread per core runtime based on iouring

    v0.2.4 43K #async-runtime #io-uring #async
  10. pyroscope

    Profiler Agent for continuous profiling of Rust, Python and Ruby applications

    v0.5.8 188K #profiling #pprof #profiler
  11. noice-rs

    A minimal suckless-style file browser for the terminal with vim-like keybindings

    v0.1.1 #file-browser #vim #terminal #suckless
  12. ntex-polling

    Portable interface to epoll, kqueue, event ports, and IOCP

    v3.10.0 1.0K #epoll #kqueue #iocp #mio
  13. mill-io

    A lightweight event loop library for Rust that provides efficient non-blocking I/O management without relying on heavyweight async runtimes

    v2.0.1 #event-loop #reactor #mio #io #networking
  14. notify-debouncer-mini

    notify mini debouncer for events

    v0.7.0 162K #filesystem-events #watch #events #filesystem
  15. everlong

    notify when command exited

    v0.5.0 160 #command #linux #notify #exited #process-pid #macos #kqueue #xkcd
  16. tokio_wasi

    An event-driven, non-blocking I/O platform for writing asynchronous I/O backed applications

    v1.25.2 21K #tokio #async-io #tokio-runtime #async
  17. avx-http

    Pure Rust HTTP/1.1 + HTTP/2 implementation with ZERO dependencies - no tokio, no serde, no hyper, 100% proprietary

    v0.4.0 #http2 #pure-rust #zero-deps #no-std
  18. timer-deque-rs

    A OS based timer and timer queue which implements timeout queues of different types

    v0.8.0 #alarm #async #scheduling #timer
  19. avx-runtime

    AVX Runtime - Native async runtime built from scratch to replace Tokio with work-stealing scheduler, epoll/kqueue/IOCP, and zero-overhead futures

    v0.1.1 #tokio-runtime #work-stealing #executor
  20. corcovado

    Non-blocking IO library

    v0.2.37 #async-io #epoll #async
  21. standby

    A world-class cross-platform time management tool for sleep, timeout, and wait operations with full POSIX compliance and GNU coreutils compatibility

    v0.2.0 #sleep-time #timeout #posix #wait
  22. gips

    General inter-process solution

    v0.2.0 #shared-memory #ipc #inter-process-solution #credentials #default #cross-platform #access-control-policies
  23. mmap-io

    High-performance, async-ready memory-mapped file I/O library for Rust. Supports fast segment-based loading, updates, and persistence. Designed for database engines, game runtimes, and real-time applications.

    v0.9.4 #mmap #memory-mapped-file #database #async-file #async-database #memory-mapped-io #memory-map #memory-mapped
  24. mio-aio

    POSIX AIO bindings for mio

    v1.0.0 9.7K #async-io #aio #freebsd #async
  25. wtr-watcher

    Filesystem watcher. Works anywhere. Simple, efficient and friendly.

    v0.14.3 #watcher #tracing-monitoring #filesystem-monitoring #tracing #filesystem
  26. mio-signals

    handling signals with Mio

    v0.3.0 500 #signal #mio #signals
  27. mio_wasi

    Lightweight non-blocking IO

    v0.8.9 800 #wasi #async-io #async
  28. awak

    A small async runtime for Rust

    v0.2.37 #async-runtime #timer
  29. nuclei

    Proactive IO & runtime system

    v0.4.4 1.2K #io-uring #proactor #uring
  30. systime

    Portable timers that handle system sleep consistently

    v0.0.3 #sleep #timerfd #timer #interval
  31. kqueue-sys

    Low-level kqueue interface for BSDs

    v1.0.4 1.5M #bsd #kevent #macos #darwin
  32. hotswap-config

    Zero-downtime configuration management with lock-free hot-reloads and atomic updates

    v0.1.1 #lock-free #hot-reloading #zero-downtime
  33. posixmq

    An idiomatic library for using posix message queues, with optional mio integration

    v1.0.0 12K #mq #posix #mqueue
  34. walsync

    Lightweight SQLite WAL sync to S3/Tigris

    v0.1.1 #wal #sqlite #snapshot #watch #database-sync #restore #amazon-s3
  35. ignix

    High-performance Redis-compatible key-value store built with Rust

    v0.3.2 #redis-server #redis #key-value-cache #server #cache #database
  36. heph

    actor framework based on asynchronous functions

    v0.4.0 #actor-framework #async-function #async #framework
  37. fast

    A helper library

    v0.4.0 550 #io-uring #syscalls #linux #primitive #run-time #async-std #async-runtime
  38. nvo_servers

    A high-performance, async HTTP server library with zero panics in production

    v0.1.5 #web-server #async-http-server #no-panic #async #web
  39. waitpid-any

    Wait for any PID, an extension to waitpid(2)

    v0.3.0 19K #waitpid #process #kqueue #pidfd #wait
  40. lio

    A platform-independent async I/O library with native support for io_uring (Linux), IOCP (Windows), and kqueue (macOS)

    v0.3.0 #networking #async #async-io-networking #filesystem
  41. tokio-hrtime

    Hires timers for tokio

    v0.1.6 2.5K #tokio-timer #tokio #timer #async
  42. smelling_salts

    Abstraction over OS APIs to handle asynchronous device waking

    v0.12.1 280 #waker #cross-platform #future #io #api-bindings
  43. crossio-kqueue

    BSD/macOS kqueue backend for crossio

    v0.1.0 #kqueue #bsd #macos #io #async
  44. ubiquity

    n-directional file synchronization utility

    v0.2.0 #file-sync #syncing #detect #archive #update #change-detection #file-change #compile-time
  45. synapse-rpc

    RPC data structures used by synapse

    v0.1.20 #synapse #rpc #bittorrent #websocket #daemon #data-structures #desktop-applications
  46. Try searching with DuckDuckGo or on crates.io.

  47. reactors

    Performance-focused cross-platform asynchronous IO implementation

    v0.1.4 #reactor #async-file #future #async
  48. tiny-nix-ipc

    Minimal wrapper for using sockets as IPC with file descriptor passing

    v0.2.2 #unix-socket #fd-passing #ipc #system
  49. lw

    Log-Watcher utility - replacement for: tail -F /some/path/* - that uses Kqueue to watch for new files as well…

    v0.6.10 #kqueue #watch #tail #view
  50. amy

    Polling and Registration abstractions around kqueue and epoll for multithreaded async network programming

    v0.10.0 140 #async #epoll #kqueue #event-loop #timer
  51. notifier

    A wrapper around platform event notification APIs that can also handle high-resolution timer events, including those set (on another thread) during a notifier.wait() call

    v0.1.3 #epoll #kqueue #poll
  52. zsync

    A Zero Dependency async net runtime thats truly cross-platform, including Windows, Linux, and MacOS

    v0.1.1 #cross-platform #async-runtime #async-net #task-scheduling #tcp-listener #thats #epoll #kqueue #iocp
  53. soio

    I/O library for Rust

    v0.2.3 #async-io #epoll #kqueue
  54. rudis-http

    A minial Redis server with HTTP interface

    v0.2.0 #redis-server #redis #server
  55. bronzeflow

    Bronze: A workflow scheduler in rust

    v0.1.1 #workflow #scheduler
  56. aliu

    Albert Liu's utilities

    v0.1.22 #utilities #albert #liu
  57. broker-tokio

    tokio for broker

    v0.2.16 #tokio-runtime #tokio-fs #tokio-task #async-write #async-read #async-io #tokio-net #task-scheduling #tokio-time #tcp-stream
  58. synapse-session

    On disk metadata structures used by synapse

    v0.1.0 #synapse #bittorrent #daemon #websocket #metadata #rpc-client #desktop-applications #wiki #kqueue #epoll
  59. epoll_test

    a test lib for epoll kqueue project with some usefull lib

    v0.1.1 #epoll #kqueue
  60. udplite

    An idiomatic UDP-Lite wrapper, with optional mio integration

    v0.1.0 #sockets #mio #integration #send #optional
  61. avila-async

    Revolutionary async runtime - Quantum, Neural Networks, Blockchain, Genetic Algorithms, Zero dependencies

    v0.5.0 #blockchain #async #quantum #genetic
  62. cemc

    Cem language compiler - A concatenative language with green threads and linear types

    v0.1.2 #green-threads #compiler #linear-types #concatenative #llvm
  63. kqueue2

    kqueue interface for BSDs and MacOS

    v0.2.2 #kqueue #bsd #macos #darwin #kevent
  64. tmp_mio

    Temporary fork of the mio crate with windows bug fix

    v0.5.2 #async-io #mio #io
  65. ev

    Cross-platform event loop primitives for unix systems

    v0.1.0 #cross-platform #system #primitive #events #unix
  66. fs_eventbridge

    A TCP server to stream file-change events to a remote destination or VM

    v0.1.0 #docker #inotify #kqueue #fsevents #boot2docker
  67. monolake

    High Performance Proxy base on Monoio

    v0.3.0 #http-proxy #monoio #async #gateway #proxy
  68. gjio

    Asynchronous input and output

    v0.1.3 140 #async-io #promise #io #async
  69. mio-st

    Single threaded, lightweight non-blocking IO

    v0.2.3 #async-io #single-threaded #io
  70. kqueue2-sys

    Low-level kqueue interface for BSDs and MacOS

    v0.1.5 #kqueue #bsd #macos #kevent #darwin