Meta (@facebook)

Top repositories

1

react

The library for web and native user interfaces.
JavaScript
222,155
star
2

react-native

A framework for building native applications using React
C++
116,022
star
3

create-react-app

Set up a modern web app by running one command.
JavaScript
101,913
star
4

docusaurus

Easy to maintain open source documentation websites.
TypeScript
52,984
star
5

jest

Delightful JavaScript Testing.
TypeScript
41,554
star
6

rocksdb

A library that provides an embeddable, persistent key-value store for fast storage.
C++
27,424
star
7

folly

An open-source C++ library developed and used at Facebook.
C++
27,122
star
8

zstd

Zstandard - Fast real-time compression algorithm
C
22,448
star
9

flow

Adds static typing to JavaScript to improve developer productivity and code quality.
OCaml
22,074
star
10

relay

Relay is a JavaScript framework for building data-driven React applications.
Rust
18,191
star
11

hhvm

A virtual machine for executing programs written in Hack.
Hack
18,004
star
12

prophet

Tool for producing high quality forecasts for time series data that has multiple seasonality with linear or non-linear growth.
Python
17,773
star
13

lexical

Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.
TypeScript
17,381
star
14

fresco

An Android library for managing images and the memory they use.
Java
17,041
star
15

yoga

Yoga is an embeddable layout engine targeting web standards.
C++
16,928
star
16

infer

A static analyzer for Java, C, C++, and Objective-C
OCaml
14,715
star
17

flipper

A desktop debugging platform for mobile developers.
TypeScript
13,221
star
18

watchman

Watches files and records, or triggers actions, when they change.
C++
12,294
star
19

react-devtools

An extension that allows inspection of React component hierarchy in the Chrome and Firefox Developer Tools.
11,030
star
20

hermes

A JavaScript engine optimized for running React Native.
C++
9,388
star
21

chisel

Chisel is a collection of LLDB commands to assist debugging iOS apps.
Python
9,090
star
22

jscodeshift

A JavaScript codemod toolkit.
JavaScript
8,996
star
23

buck

A fast build system that encourages the creation of small, reusable modules over a variety of platforms and languages.
Java
8,568
star
24

stylex

StyleX is the styling system for ambitious user interfaces.
JavaScript
8,077
star
25

proxygen

A collection of C++ HTTP libraries including an easy to use HTTP server.
C++
8,026
star
26

facebook-ios-sdk

Used to integrate the Facebook Platform with your iOS & tvOS apps.
Swift
7,720
star
27

litho

A declarative framework for building efficient UIs on Android.
Java
7,646
star
28

pyre-check

Performant type-checking for python.
OCaml
6,696
star
29

facebook-android-sdk

Used to integrate Android apps with Facebook Platform.
Kotlin
6,066
star
30

redex

A bytecode optimizer for Android apps
C++
5,991
star
31

sapling

A Scalable, User-Friendly Source Control System.
Rust
5,815
star
32

componentkit

A React-inspired view framework for iOS.
Objective-C++
5,746
star
33

fishhook

A library that enables dynamically rebinding symbols in Mach-O binaries running on iOS.
C
5,117
star
34

PathPicker

PathPicker accepts a wide range of input -- output from git commands, grep results, searches -- pretty much anything. After parsing the input, PathPicker presents you with a nice UI to select which files you're interested in. After that you can open them in your favorite editor or execute arbitrary commands.
Python
5,075
star
35

metro

πŸš‡ The JavaScript bundler for React Native
JavaScript
5,061
star
36

prop-types

Runtime type checking for React props and similar objects
JavaScript
4,446
star
37

idb

idb is a flexible command line interface for automating iOS simulators and devices
Objective-C
4,431
star
38

Haxl

A Haskell library that simplifies access to remote data, such as databases or web-based services.
Haskell
4,227
star
39

FBRetainCycleDetector

iOS library to help detecting retain cycles in runtime.
Objective-C++
4,190
star
40

memlab

A framework for finding JavaScript memory leaks and analyzing heap snapshots
TypeScript
4,187
star
41

duckling

Language, engine, and tooling for expressing, testing, and evaluating composable language rules on input strings.
Haskell
4,021
star
42

fbt

A JavaScript Internationalization Framework
JavaScript
3,849
star
43

regenerator

Source transformer enabling ECMAScript 6 generator functions in JavaScript-of-today.
JavaScript
3,801
star
44

buck2

Build system, successor to Buck
Rust
3,307
star
45

mcrouter

Mcrouter is a memcached protocol router for scaling memcached deployments.
C++
3,222
star
46

wangle

Wangle is a framework providing a set of common client/server abstractions for building services in a consistent, modular, and composable way.
C++
3,030
star
47

react-strict-dom

React Strict DOM (RSD) is a subset of React DOM, imperative DOM, and CSS that supports web and native targets
JavaScript
2,922
star
48

wdt

Warp speed Data Transfer (WDT) is an embeddedable library (and command line tool) aiming to transfer data between 2 systems as fast as possible over multiple TCP paths.
C++
2,836
star
49

igl

Intermediate Graphics Library (IGL) is a cross-platform library that commands the GPU. It provides a single low-level cross-platform interface on top of various graphics APIs (e.g. OpenGL, Metal and Vulkan).
C++
2,719
star
50

fbthrift

Facebook's branch of Apache Thrift, including a new C++ server.
C++
2,535
star
51

mysql-5.6

Facebook's branch of the Oracle MySQL database. This includes MyRocks.
C++
2,446
star
52

Ax

Adaptive Experimentation Platform
Python
2,272
star
53

fbjs

A collection of utility libraries used by other Meta JS projects.
JavaScript
1,953
star
54

jsx

The JSX specification is a XML-like syntax extension to ECMAScript.
HTML
1,945
star
55

react-native-website

The React Native website and docs
JavaScript
1,885
star
56

screenshot-tests-for-android

Generate fast deterministic screenshots during Android instrumentation tests
Java
1,733
star
57

idx

Library for accessing arbitrarily nested, possibly nullable properties on a JavaScript object.
JavaScript
1,686
star
58

TextLayoutBuilder

An Android library that allows you to build text layouts more easily.
Java
1,470
star
59

mvfst

An implementation of the QUIC transport protocol.
C++
1,433
star
60

SoLoader

Native code loader for Android
Java
1,300
star
61

facebook-python-business-sdk

Python SDK for Meta Marketing APIs
Python
1,240
star
62

ThreatExchange

Trust & Safety tools for working together to fight digital harms.
C++
1,123
star
63

CacheLib

Pluggable in-process caching engine to build and scale high performance services
C++
1,097
star
64

mariana-trench

A security focused static analysis tool for Android and Java applications.
C++
1,041
star
65

fatal

Fatal is a library for fast prototyping software in modern C++. It provides facilities to enhance the expressive power of C++. The library is heavily based on template meta-programming, while keeping the complexity under-the-hood.
C++
1,000
star
66

transform360

Transform360 is an equirectangular to cubemap transform for 360 video.
C
996
star
67

openr

Distributed platform for building autonomic network functions.
C++
883
star
68

fboss

Facebook Open Switching System Software for controlling network switches.
C++
851
star
69

ktfmt

A program that reformats Kotlin source code to comply with the common community standard for Kotlin code conventions.
Kotlin
818
star
70

facebook-php-business-sdk

PHP SDK for Meta Marketing API
PHP
810
star
71

winterfell

A STARK prover and verifier for arbitrary computations
Rust
728
star
72

pyre2

Python wrapper for RE2
C++
631
star
73

starlark-rust

A Rust implementation of the Starlark language
Rust
623
star
74

openbmc

OpenBMC is an open software framework to build a complete Linux image for a Board Management Controller (BMC).
C
615
star
75

SPARTA

SPARTA is a library of software components specially designed for building high-performance static analyzers based on the theory of Abstract Interpretation.
C++
609
star
76

time

Meta's Time libraries
Go
570
star
77

chef-cookbooks

Open source chef cookbooks.
Ruby
564
star
78

IT-CPE

Meta's Client Platform Engineering tools. Some of the tools we have written to help manage our fleet of client systems.
Ruby
554
star
79

dotslash

Simplified executable deployment
Rust
523
star
80

lexical-ios

Lexical iOS is an extensible text editor framework that integrates the APIs and philosophies from Lexical Web with a Swift API built on top of TextKit.
Swift
477
star
81

facebook-sdk-for-unity

The facebook sdk for unity.
C#
474
star
82

facebook-nodejs-business-sdk

Node.js SDK for Meta Marketing APIs
JavaScript
469
star
83

Rapid

The OpenStreetMap editor driven by open data, AI, and supercharged features
JavaScript
460
star
84

FAI-PEP

Facebook AI Performance Evaluation Platform
Python
384
star
85

facebook-java-business-sdk

Java SDK for Meta Marketing APIs
Java
379
star
86

chef-utils

Utilities related to Chef
Ruby
289
star
87

opaque-ke

An implementation of the OPAQUE password-authenticated key exchange protocol
Rust
275
star
88

dns

Collection of Meta's DNS Libraries
Go
257
star
89

facebook360_dep

Facebook360 Depth Estimation Pipeline - https://facebook.github.io/facebook360_dep
HTML
241
star
90

akd

An implementation of an auditable key directory
Rust
219
star
91

tac_plus

A Tacacs+ Daemon tested on Linux (CentOS) to run AAA via TACACS+ Protocol via IPv4 and IPv6.
C
207
star
92

facebook-ruby-business-sdk

Ruby SDK for Meta Marketing API
Ruby
204
star
93

usort

Safe, minimal import sorting for Python projects.
Python
171
star
94

grocery-delivery

The Grocery Delivery utility for managing cookbook uploads to distributed Chef backends.
Ruby
153
star
95

taste-tester

Software to manage a chef-zero instance and use it to test changes on production servers.
Ruby
145
star
96

TestSlide

A Python test framework
Python
143
star
97

sapp

Post Processor for Facebook Static Analysis Tools.
Python
127
star
98

homebrew-fb

OS X Homebrew formulas to install Meta open source software
Ruby
124
star
99

threat-research

Welcome to the Meta Threat Research Indicator Repository, a dedicated resource for the sharing of Indicators of Compromise (IOCs) and other threat indicators with the external research community
Python
124
star
100

ocamlrep

Sets of libraries and tools to write applications and libraries mixing OCaml and Rust. These libraries will help keeping your types and data structures synchronized, and enable seamless exchange between OCaml and Rust
Rust
121
star