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    161 repositories

    • fboss

      Public
      Facebook Open Switching System Software for controlling network switches.
      C++
      •
      Other
      •377•949•25•128•Updated Feb 1, 2026Feb 1, 2026

    • openr

      Public
      Distributed platform for building autonomic network functions.
      C++
      •
      MIT License
      •246•926•10•10•Updated Feb 1, 2026Feb 1, 2026

    • zstd

      Public
      Zstandard - Fast real-time compression algorithm
      C
      •
      Other
      •2.4k•27k•211•37•Updated Feb 1, 2026Feb 1, 2026

    • buck2

      Public
      Build system, successor to Buck
      Rust
      •
      Apache License 2.0
      •324•4.2k•274•66•Updated Feb 1, 2026Feb 1, 2026

    • buck2-prelude

      Public
      Prelude for the Buck2 project
      Starlark
      •
      Apache License 2.0
      •60•60•1•1•Updated Feb 1, 2026Feb 1, 2026

    • hhvm

      Public
      A virtual machine for executing programs written in Hack.
      phphackhhvmhacklang
      C++
      •
      Other
      •3.1k•19k•409•113•Updated Feb 1, 2026Feb 1, 2026

    • prophet

      Public
      Tool for producing high quality forecasts for time series data that has multiple seasonality with linear or non-linear growth.
      pythonrforecasting
      Python
      •
      MIT License
      •4.6k•20k•453•6•Updated Jan 31, 2026Jan 31, 2026

    • react-router-3

      Public
      Fork of https//www.npmjs.com/package/react-router v3.0.5
      TypeScript
      •
      MIT License
      •11k•9•0•20•Updated Jan 31, 2026Jan 31, 2026

    • sapling

      Public
      A Scalable, User-Friendly Source Control System.
      Rust
      •
      GNU General Public License v2.0
      •337•6.7k•230•62•Updated Jan 31, 2026Jan 31, 2026

    • pyre-check

      Public
      Performant type-checking for python.
      pythonsecuritytypecheckerstatic-analysisocamlcontrol-flow-analysiscode-qualityprogram-analysistaint-analysisabstract-interpretation
      OCaml
      •
      MIT License
      •451•7.1k•131•21•Updated Jan 31, 2026Jan 31, 2026

    • fbthrift

      Public
      Facebook's branch of Apache Thrift, including a new C++ server.
      C++
      •
      Apache License 2.0
      •627•2.7k•44•5•Updated Jan 31, 2026Jan 31, 2026

    • lexical

      Public
      Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.
      TypeScript
      •
      MIT License
      •2.1k•23k•543•42•Updated Jan 31, 2026Jan 31, 2026

    • openbmc

      Public
      OpenBMC is an open software framework to build a complete Linux image for a Board Management Controller (BMC).
      C
      •
      Apache License 2.0
      •301•670•43•7•Updated Jan 31, 2026Jan 31, 2026

    • CacheLib

      Public
      Pluggable in-process caching engine to build and scale high performance services
      performancecppcacheconcurrencyssdcache-engine
      C++
      •
      Apache License 2.0
      •313•1.5k•15•28•Updated Jan 31, 2026Jan 31, 2026

    • wangle

      Public
      Wangle is a framework providing a set of common client/server abstractions for building services in a consistent, modular, and composable way.
      C++
      •
      Apache License 2.0
      •546•3.1k•34•12•Updated Jan 31, 2026Jan 31, 2026

    • proxygen

      Public
      A collection of C++ HTTP libraries including an easy to use HTTP server.
      C++
      •
      Other
      •1.5k•8.3k•22•15•Updated Jan 31, 2026Jan 31, 2026

    • mvfst

      Public
      An implementation of the QUIC transport protocol.
      C++
      •
      MIT License
      •278•1.6k•39•7•Updated Jan 31, 2026Jan 31, 2026

    • watchman

      Public
      Watches files and records, or triggers actions, when they change.
      C++
      •
      MIT License
      •1.1k•13k•210•29•Updated Jan 31, 2026Jan 31, 2026

    • fb303

      Public
      fb303 is a core set of thrift functions that provide a common mechanism for querying stats and other information from a service.
      C++
      •
      Apache License 2.0
      •60•90•6•12•Updated Jan 31, 2026Jan 31, 2026

    • pyrefly

      Public
      A fast type checker and language server for Python
      pythonrusttypecheckertypeslanguage-serveridetypingcode-qualityhacktoberfesttypecheck
      Rust
      •
      MIT License
      •262•5.3k•376•51•Updated Jan 31, 2026Jan 31, 2026

    • stylex

      Public
      StyleX is the styling system for ambitious user interfaces.
      JavaScript
      •
      MIT License
      •386•9.1k•93•25•Updated Jan 31, 2026Jan 31, 2026

    • bpfilter

      Public
      BPF-based packet filtering framework
      C
      •
      GNU General Public License v2.0
      •49•304•25•4•Updated Jan 31, 2026Jan 31, 2026

    • flow

      Public
      Adds static typing to JavaScript to improve developer productivity and code quality.
      OCaml
      •
      MIT License
      •1.9k•22k•604•16•Updated Jan 31, 2026Jan 31, 2026

    • folly

      Public
      An open-source C++ library developed and used at Facebook.
      C++
      •
      Apache License 2.0
      •5.8k•30k•310•132•Updated Jan 31, 2026Jan 31, 2026

    • redex

      Public
      A bytecode optimizer for Android apps
      C++
      •
      MIT License
      •681•6.3k•57•16•Updated Jan 31, 2026Jan 31, 2026

    • fresco

      Public
      An Android library for managing images and the memory they use.
      Java
      •
      MIT License
      •3.8k•17k•246•12•Updated Jan 31, 2026Jan 31, 2026

    • rocksdb

      Public
      A library that provides an embeddable, persistent key-value store for fast storage.
      databasestorage-engine
      C++
      •
      GNU General Public License v2.0
      •6.7k•31k•832•563•Updated Jan 31, 2026Jan 31, 2026

    • OpenBIC

      Public
      BICs (Bridge IC) are standalone devices deployed within a Data Center that enable monitoring a multi-host system using a single BMC device.
      C
      •
      Apache License 2.0
      •54•62•5•1•Updated Jan 31, 2026Jan 31, 2026

    • hermes

      Public
      A JavaScript engine optimized for running React Native.
      JavaScript
      •
      MIT License
      •731•11k•119•58•Updated Jan 30, 2026Jan 30, 2026

    • capi-param-builder

      Public
      Conversions API parameter builder to help enhance the parameter qualities for Conversions API events
      JavaScript
      •
      Other
      •3•10•2•0•Updated Jan 30, 2026Jan 30, 2026