Google ORG

Material Design icons by Google (Material Symbols)

Google's official Material Design icon set, hundreds of free, professionally designed symbols for web, Android, and iOS apps, available as a web font or downloadable SVG files.

Google core libraries for Java

Guava is Google's battle-tested open-source Java utility library that fills gaps in the standard library, adding better collections, string utilities, caching, hashing, and concurrency helpers.

A tool for writing better scripts

Zx is a Google library that lets you write shell automation scripts in JavaScript instead of Bash, making it easy to run commands, handle their output, and use JavaScript logic all in one clean file.

Style guides for Google-originated open-source projects

Google's Style Guides are official coding conventions for C++, Python, Java, Go, JavaScript, and many other languages that explain not just the rules but the reasoning behind them.

LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.

LevelDB is a fast, embedded key-value storage library from Google that lets a C++ application persist sorted data locally without running a separate database server.

GoogleTest - Google Testing and Mocking Framework

GoogleTest is Google's C++ testing and mocking framework for writing automated tests that check your code works correctly, with assertion macros, parameterized tests, and mock objects that simulate dependencies.

A Python library for extracting structured information from unstructured text using LLMs with precise source grounding and interactive visualization.

Python library that uses LLMs to extract structured data from unstructured text documents, with source grounding and interactive visualization.

This is the Rust course used by the Android team at Google. It provides you the material to quickly teach Rust.

A multi-day classroom training course for learning Rust, built by Google's Android team. Covers basics through advanced topics like concurrency and embedded programming.

Material Design Components in HTML/CSS/JS

Pre-built Material Design UI components in HTML, CSS, and JavaScript for web developers to use in websites without building from scratch.

Python Fire is a library for automatically generating command line interfaces (CLIs) from absolutely any Python object.

Python Fire is a Google library that automatically turns any Python function, class, or object into a command-line tool with a single line of code, no argument parsing or boilerplate required.

FlatBuffers: Memory Efficient Serialization Library

FlatBuffers is a Google library for storing and sending data between programs extremely fast, it reads data directly from memory without unpacking it, using far less time and memory than JSON.

A Java serialization/deserialization library to convert Java Objects into JSON and back

Gson is a Google Java library that converts any Java object to JSON and back with a single method call, even on classes you cannot modify.

Google's Engineering Practices documentation

Google's publicly shared engineering guidelines covering how to run code reviews effectively, written for both reviewers and change authors based on practices used across all of Google's engineering teams.

This project is deprecated and stale. The latest ExoPlayer code is available in https://github.com/androidx/media

Deprecated Android media playback library for audio and video. Development has moved to AndroidX Media3, use that instead for new projects.

An open-source, code-first Python toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.

Python framework for building AI agents that can break down goals into steps, use tools like web search, and work autonomously toward completing tasks.

Filament is a real-time physically based rendering engine for Android, iOS, Windows, Linux, macOS, and WebGL2

A real-time 3D rendering engine by Google for Android, iOS, web, and desktop that delivers photorealistic lighting, shadows, and materials without writing low-level graphics code.

Font files available from Google Fonts, and a public issue tracker for all things Google Fonts

The actual font files behind Google Fonts, thousands of open-licensed typefaces you can download and self-host on your own server instead of relying on Google's CDN.

Analyzes resource usage and performance characteristics of running containers.

A Google tool that monitors every running container in real time, showing exactly how much CPU, memory, network, and disk each one is using via a dashboard and Prometheus-compatible API.

Application Kernel for Containers

gVisor is a container security sandbox from Google that intercepts system calls between containerized apps and the host kernel, reducing attack surface without the weight of a full virtual machine.

Web Starter Kit - a workflow for multi-device websites

A Google-created website starter template with responsive layouts, Sass support, automatic file optimization, live browser reloading, and multi-device sync all pre-configured.

Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers.

Google's open-source library for parsing, validating, and formatting phone numbers from every country, available in Java, C++, and JavaScript.

Fast and accurate AI powered file content types detection

Magika is a Google tool that identifies what type a file really is by inspecting its contents with a small AI model, detecting over 200 file types in about 5 milliseconds on a standard CPU.

Brotli compression format

Google's Brotli compression library and reference encoder, combining LZ77, Huffman coding, and context modeling to produce smaller output than gzip at similar speed. Documented as RFC 7932.

Compile-time Dependency Injection for Go

Google's code generation tool for Go that reads how your program's components depend on each other and writes the boilerplate startup wiring code automatically.

Agent Skills for Google products and technologies

Google's Operations Research tools:

OR-Tools is Google's free open-source toolkit for solving hard scheduling, routing, and assignment problems by finding the best possible arrangement from millions of options. Available in Python, Java, C#, and C++.

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Google Research's original 2015 DeepDream notebook that turns any photo into a surreal, pattern-covered image by asking a neural network to amplify what it thinks it sees.

Perceptual JPEG encoder

A command-line tool from Google that makes JPEG image files 20-30% smaller without visible quality loss, by modeling how human eyes perceive images during compression instead of using a fixed formula.

Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 11 and above, brought to you by Google.

A Google library for Java that automatically wires up the dependencies between parts of your program. You add an @Inject annotation and Guice supplies the right objects, eliminating manual boilerplate and making code easier to test.

OSS-Fuzz - continuous fuzzing for open source software.

OSS-Fuzz is Google's free continuous fuzz-testing service that automatically throws random inputs at open source software to find crashes, memory errors, and security vulnerabilities at scale.

Unsupervised text tokenizer for Neural Network-based text generation.

Go library for accessing the GitHub v3 API

Dopamine is a research framework for fast prototyping of reinforcement learning algorithms.

Skia is a complete 2D graphic library for drawing Text, Geometries, and Images. See documentation for contribution instructions.

Vulnerability scanner written in Go which uses the data provided by https://osv.dev

A collection of source code generators for Java.

A microbenchmark support library

The Go Cloud Development Kit (Go CDK): A library and tools for open cloud development in Go.

RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python. It is a C++ library.

A collection of sample agents built with Agent Development Kit (ADK)

pprof is a tool for visualization and analysis of profiling data

An open-source, code-first Go toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.

Traceur is a JavaScript.next-to-JavaScript-of-today compiler

Easily display interactive 3D models on the web and in AR!

Diff Match Patch is a high-performance library in multiple languages that manipulates plain text.

A JavaScript checker and optimizer.

Draco is a library for compressing and decompressing 3D geometric meshes and point clouds. It is intended to improve the storage and transmission of 3D graphics.

Flax is a neural network library for JAX that is designed for flexibility.

lightweight, standalone C++ inference engine for Google's Gemma models.

Provides packet processing capabilities for Go

Lovefield is a relational database for web apps. Written in JavaScript, works cross-browser. Provides SQL-like APIs that are fast, safe, and easy to use.

Google Brain AutoML

syzkaller is an unsupervised coverage-guided kernel fuzzer

Production-grade client-side tracing, profiling, and analysis for complex software systems.

Go package for UUIDs based on RFC 4122 and DCE 1.1: Authentication and Security Services.

A Java to iOS Objective-C translation tool and runtime.

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🔗 Command Line Apps Script Projects

The official PyTorch implementation of Google's Gemma models

Performance-portable, length-agnostic SIMD with runtime dispatch

High-performance TensorFlow library for quantitative finance.

Open source version of Google Authenticator (except the Android app)

☂️ TypeScript style guide, formatter, and linter.

GRR Rapid Response: remote live forensics for incident response

A static type analyzer for Python code

Google CTF

2D physics engine for games

This project hosts security advisories and their accompanying proof-of-concepts related to research conducted at Google which impact non-Google owned code.

Google 💚 MCP

Tamper Dev is an extension that allows you to intercept and edit HTTP/HTTPS requests and responses as they happen without the need of a proxy. Works across all operating systems (including Chrome OS).

american fuzzy lop - a security-oriented fuzzer

A conformant OpenGL ES implementation for Windows, Mac, Linux, iOS and Android.

Bundletool is a command-line tool to manipulate Android App Bundles

Fast, indexed regexp search over large file trees

A lightweight process isolation tool that utilizes Linux namespaces, cgroups, rlimits and seccomp-bpf syscall filters, leveraging the Kafel BPF language for enhanced security.

Go library and CLIs for working with container registries

DeepVariant is an analysis pipeline that uses a deep neural network to call genetic variants from next-generation DNA sequencing data.

Generates a unified GraphQL schema from gRPC microservices and other Protobuf sources

Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression.

Open source process design kit for usage with SkyWater Technology Foundry's 130nm node.

Google APIs Client Library for browser JavaScript, aka gapi.

Kotlin Symbol Processing API

Tools for synching and streaming files from Windows to Linux

OpenSK is an open-source implementation for security keys written in Rust that supports both FIDO U2F and FIDO2 standards.

Security oriented software fuzzer. Supports evolutionary, feedback-driven fuzzing based on code coverage (SW and HW based)

Collaborative forensic timeline analysis

Python and JavaScript bindings for calling the Earth Engine API.

Common Lisp Koans is a language learning exercise in the same vein as the ruby koans, python koans and others. It is a port of the prior koans with some modifications to highlight lisp-specific features. Structured as ordered groups of broken unit tests, the project guides the learner progressively through many Common Lisp language features.

Massively parallel rigidbody physics simulation on accelerator hardware.

Specification for Eddystone, an open beacon format from Google

Quickly find differences and similarities in disassembled code

The CLI and skills that turn any coding assistant into an expert at creating, evaluating, and deploying AI agents on Google Cloud.

An on-path blackbox network traffic security testing tool

Mozc - a Japanese Input Method Editor designed for multi-platform

Open source vulnerability DB and triage service.

Copybara: A tool for transforming and moving code between repositories.

Circuit diagrams and firmware source code for Gboard DIY keyboards

Web Tracing Framework libraries and extensions.

Exposure Notification Reference Server | Covid-19 Exposure Notifications

An in-memory file system for Java

Tool for safe ergonomic Rust/C++ interop driven from existing C++ headers

Fast and Easy Infinite Neural Networks in Python

High-efficiency floating-point neural network inference operators for mobile, server, and Web

A Lightweight LLM Post-Training Library

A 360° media viewer for the modern web.

Mirror of BoringSSL

A collection of tools, libraries, and tests for Vulkan shader compilation.

This is a set of minimal scripts to run the emulator in a container for various systems such as Docker, for external consumption

Rust derive-based argument parsing optimized for code size

An R package for causal inference in time series

Top-level domain name registry service on Google Cloud Platform

An extensible command line tool or library to format yaml files.

Google's open source distributed agent runtime

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An open-source, code-first Java toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.

High-quality implementations of standard and SOTA methods on a variety of tasks.

A transparent and secure way to look up public keys.

XLS: Accelerated HW Synthesis

Fuzz testing for go.

Meridian is an MMM framework that enables advertisers to set up and run their own in-house models.

An open-source, code-first toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.

Google Coding Competitions problem archive

Official code for "Style Aligned Image Generation via Shared Attention"

An open-source, code-first Typescript toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.

Automatically exported from code.google.com/p/cityhash

The Chrome OS Virtual Machine Monitor - Mirror of https://chromium.googlesource.com/crosvm/crosvm/

Google Toolbox for Mac

Native WebGPU implementation. Mirror of https://dawn.googlesource.com/dawn. File bugs here: https://crbug.com/dawn/new

Hardware accelerated, batchable and differentiable optimizers in JAX.

A bidirectional bindings generator for C++ and Rust.

Go tool for managing Linux filesystem encryption

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Agent Development Kit Web (adk web) is the built-in developer UI that is integrated with Agent Development Kit for easier agent development and debugging.

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FHIR Protocol Buffers

Perceptual Quality Estimator for speech and audio

Cross platform Go logging library.

An implementation of 'Deep Bilateral Learning for Real-Time Image Enhancement', SIGGRAPH 2017

Go SDK for Google Generative AI

Tutorials and content created by Earth Engine users, for Earth Engine users

Infrastructure for Machine Learning Guided Optimization (MLGO) in LLVM.

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The open-source hardware testing framework.

A Python library for reading, validating, and writing transit schedule information in the GTFS format.

Library for structured fuzzing with protobuffers

Cuttlefish host support debian package.

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Automatically exported from code.google.com/p/farmhash

Next-generation JavaScript analysis tooling

OSV-SCALIBR: A library for Software Composition Analysis

Editable After Effects layers from Sketch artboards

Pax is a Jax-based machine learning framework for training large scale models. Pax allows for advanced and fully configurable experimentation and parallelization, and has demonstrated industry leading model flop utilization rates.

An example documentation site using the Docsy Hugo theme

AI models trained by Google to classify species in images from motion-triggered wildlife cameras.

Orbax provides common checkpointing and persistence utilities for JAX users

Plugins to help with using Google Play services SDK.

A small Java 8 library (string manipulation, BiStream, Structured Concurrency, SQL Templates)

PDK for GlobalFoundries' 180nm MCU bulk process technology (GF180MCU).

keep-sorted is a language-agnostic formatter that sorts lines between two markers in a larger file.

CLU lets you write beautiful training loops in JAX.

A comprehensive scanner for Google Cloud

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Ultra HDR is a true HDR image format, and is backcompatible. libultrahdr is the reference codec for the Ultra HDR format. The codecs that support the format can render the HDR intent of the image on HDR displays; other codecs can still decode and display the SDR intent of the image.

Mail Importer for Gmail will upload the contents of a Thunderbird mail archive to Gmail and do its best to preserve the read state, flagged state, and folders of the messages.

Documentation resources

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OSS-Fuzz vulnerabilities for OSV.

JavaScript package.json License Checker

A tool to help pinpoint performance bottlenecks in individual Android Lint checks.

Jsonnet filetype plugin for Vim.

purr is a zsh CLI tool for viewing and searching through Android logcat output. It leverages fzf to provide a simple yet powerful user interface, fuzzy-finding capabilities, and much more.

The Kotlin Programming Language

Certificate Transparency Community Website

☀️ A game changer in rule-based marketing. Run marketing campaigns based on real world events.

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Android library for sending fastboot commands from an Android device to a device running fastboot.

Google Ink

Tools at Google for mobile development and testing

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A JAX-native High Performance Eval Metrics Library

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Snippets to allow Mobly tests to control Android devices by exposing a simplified Android API.

A web based tool for inspecting UI of an in-development android app

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Genie for SAP enables AI based features (Code Explan, Code Review, Suggest Code and Suggest ABAP Unit Test) in SAP ABAP Editor on RIGHT-CLICK

Google-internal core components of Firebase App Check.

CborTree: A Java Library for decoding, manipulating, and encoding CBOR data items.

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Google-internal interfaces that allow Google SDKs to reliably interoperate with one another via weak dependencies.

SAM Sovereign Agent Mesh

Goonami is a general purpose network security scanner, written in Golang, with an extensible plugin system for detecting high severity vulnerabilities with high confidence.

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