Open Source Go Libraries
Sort By:
Go Libraries
View 74 business solutionsBrowse free open source Go Libraries and projects below. Use the toggles on the left to filter open source Go Libraries by OS, license, language, programming language, and project status.
-
Gemini 3 and 200+ AI Models on One PlatformBuild generative AI apps with Vertex AI. Switch between models without switching platforms.
-
Forever Free Full-Stack Observability | Grafana CloudBuilt on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
-
1
Go Examples
Go(lang) examples
Now with an online live editor with Golang support. Try out and edit the examples directly in the browser. These examples explain the basics of Golang. There will be more examples from time to time. The examples are divided into three levels of difficulty. The Beginner section contains very easy examples, starting with Hello World but also containing a few easy algorithms. The Advanced section uses more complicated features of Golang. Finally, the Expert section contains applications like telnet-clients or http-server (even with SSL). If you want even more Golang examples, you can take a look at my other go repositories at GitHub. To execute a Golang program, write go run at the cli followed by the name of the file. You also can convert the file to a binary executable program by the command go build. One great aspect of Golang is, that you can start go applications via go run name.go, but also compile it to an executable with go build name.go. -
2
Amazon EC2 Instance Selector
A CLI tool and go library which recommends instance types
A CLI tool and go library which recommends instance types based on resource criteria like vcpus and memory. There are over 270 different instance types available on EC2 which can make the process of selecting appropriate instance types difficult. Instance Selector helps you select compatible instance types for your application to run on. The command-line interface can be passed resource criteria like vcpus, memory, network performance, and much more and then return the available, matching instance types. If you are using spot instances to save on costs, it is a best practice to use multiple instances types within your auto-scaling group (ASG) to ensure your application doesn't experience downtime due to one instance type being interrupted. Instance Selector will help to find a set of instance types that your application can run on. -
3
AndroidLibXrayLite
Lightweight Android library that bundles the Xray networking core
AndroidLibXrayLite is a lightweight Android library that bundles the Xray networking core as an embeddable component for apps. Its purpose is to provide a minimal, size-optimized build of the native core with a clear Java/Kotlin interface to start, stop, and configure network tunnels. By exposing the core as an AAR with per-ABI artifacts, it keeps application footprints small while supporting common CPU architectures. The library abstracts process management and log streaming so host apps can control lifecycles and capture diagnostics. It’s particularly useful for developers who want to integrate secure, rule-based proxying into their own Android apps without re-implementing the native glue. With a focus on stability and easy updates, it shortens the path from concept to a working in-app networking stack. -
4
go-chart
go chart is a basic charting library in go
Package chart is a very simple golang native charting library that supports time-series and continuous line charts. Master should now be on the v3.x codebase, which overhauls the api significantly. Per usual, see examples for more information. Actual chart configurations and examples can be found in the ./examples/ directory. They are simple CLI programs that write to output.png (they are also updated with go generate. Everything on the chart.Chart object has defaults that can be overridden. Whenever a developer sets a property on the chart object, it is to be assumed that value will be used instead of the default. The best way to see the api in action is to look at the examples in the ./_examples/ directory. I wanted to make a charting library that used only native golang, that could be stood up on a server (i.e. it had built-in fonts). The goal with the API itself is to have the "zero value be useful", and to require the user to not code more than they absolutely needed. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
-
5
Stash
An organizer for your videos, written in Go
Stash allows you to organize and view your own collection of adult video and image files. Think of it like a private Hub site for your personal porn collection. Every video file has its own scene. Scenes can be rated and tagged with performers, tags, movies and a studio. Bookmark your favorite parts of a scene with markers. Markers can be tagged and appear in the video scrubber when viewing a scene. Images can be rated and tagged with performers, tags and a studio. Galleries are collections of images. Galleries can be automatically created from zip files and folders containing image files. Preview and view all of your scenes and galleries from your web browser on your PC, tablet or phone. Stash directly streams videos to your web browser. Stash supports streaming of a large variety of formats and codecs to most web browsers. -
6
go-coffeeshop
A practical event-driven microservices demo
go-coffeeshop is a sample application that demonstrates how to build scalable and maintainable systems using Go, following clean architecture principles and domain-driven design concepts. It simulates a coffee shop system, providing a realistic context for implementing business logic, APIs, and data handling. The project is structured to separate concerns clearly, with layers for domain logic, application services, infrastructure, and interfaces. It showcases best practices for building microservices, including dependency injection, testing strategies, and modular design. The repository is intended as a learning resource for developers who want to understand how to apply architectural patterns in Go projects. It also includes examples of integrating external systems and handling real-world scenarios such as order processing and inventory management. -
7
smartcrop
smartcrop finds good image crops for arbitrary crop sizes
smartcrop is an image processing library that automatically crops images to focus on the most visually important regions using content-aware algorithms. It analyzes images to detect areas of interest such as faces, edges, and high-contrast regions, ensuring that the cropped output retains meaningful content. The library is particularly useful for generating thumbnails or resizing images while preserving key visual elements. It supports different aspect ratios and can be customized to prioritize certain features depending on the use case. smartcrop is designed to be efficient and easy to integrate into applications that require automated image processing. It can be used in web services, content management systems, or media pipelines. Overall, smartcrop provides an intelligent approach to image cropping that improves visual quality. -
8
cache2go
Concurrency-safe Go caching library with expiration capabilities
cache2go is an in-memory caching library for Go that provides a simple and efficient way to store and retrieve data with optional expiration policies. It supports multiple independent cache tables, allowing developers to organize cached data according to different use cases or domains. The library includes features such as automatic expiration, callbacks on data eviction, and thread-safe operations for concurrent environments. It is designed to be easy to integrate into Go applications, offering a straightforward API for common caching tasks. cache2go can help improve performance by reducing the need for repeated computations or database queries. It also provides flexibility in managing cache lifecycles and behaviors. Overall, it is a practical solution for adding caching capabilities to Go applications. -
9
OpenAI Go
The official Go library for the OpenAI API
OpenAI Go is the official Go client library for accessing the OpenAI API. It enables developers to integrate OpenAI’s models and features into Go applications with a clean and idiomatic interface. The library provides support for a wide range of API endpoints including chat completions, assistants, embeddings, image generation, audio processing, and batch jobs. It includes built-in tools for handling authentication, managing API requests, and parsing structured responses. The repository also offers examples to help developers quickly set up projects and test different API calls. Designed for reliability and ease of use, it is maintained to stay aligned with the evolving OpenAI API specifications. -
Try Google Cloud Risk-Free With $300 in CreditUse your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.
-
10
OpenID Connect SDK for Go
Easy to use OpenID Connect client and server library written for Go
This project is an easy-to-use client (RP) and server (OP) implementation for the OIDC (OpenID Connect) standard written for Go. The RP is certified for the basic and config profile. -
11
XLSX
Go (golang) library for reading and writing XLSX files
xlsx is a library to simplify reading and writing the XML format used by recent version of Microsoft Excel in Go programs. Version 3.0.0 introduces some more breaking changes in the API. All methods that can return an `xlsx.File` struct now accept zero, one or many `xlsx.FileOption` functions as their final arguments. These can be used to modify the behavior of the resultant struct, in particular they replace the `…WithRowLimit` variants of those methods with the result of calling `xlsx.RowLimit` and they add the ability to define a custom backing store for the spreadsheet data to be held in whilst processing. The full API docs can be viewed using go’s built in documentation tool. -
12
migrate
Database migrations, CLI and Golang library
Database migrations are written in Go. Use as CLI or import as a library. Migrate reads migrations from sources and applies them in correct order to a database. Drivers are "dumb", migrate glues everything together and makes sure the logic is bulletproof. (Keeps the drivers lightweight, too.) Database drivers don't assume things or try to correct user input. When in doubt, fail. Package migrate reads migrations from sources and runs them against databases. Sources are defined by the `source.Driver` and databases by the `database.Driver` interface. The driver interfaces are kept "dump", all migration logic is kept in this package. -
13
Coraza
OWASP Coraza WAF is a golang modsecurity compatible firewall library
Coraza is an open-source, enterprise-grade, high-performance Web Application Firewall (WAF) ready to protect your beloved applications. It is written in Go, supports ModSecurity SecLang rulesets and is 100% compatible with the OWASP Core Rule Set. Coraza is a drop-in alternative to replace the soon-to-be abandoned Trustwave ModSecurity Engine and supports industry-standard SecLang rule sets. Coraza runs the OWASP Core Rule Set (CRS) to protect your web applications from a wide range of attacks, including the OWASP Top Ten, with a minimum of false alerts. CRS protects from many common attack categories including: SQL Injection (SQLi), Cross Site Scripting (XSS), PHP & Java Code Injection, HTTPoxy, Shellshock, Scripting/Scanner/Bot Detection & Metadata & Error Leakages. Coraza is a library at its core, with many integrations to deploy on-premise Web Application Firewall instances. -
14
Google Cloud Client Libraries for Go
Google Cloud Client Libraries for Go
The Cloud Client Libraries are the recommended way to access Google Cloud APIs programmatically. The Cloud Client Libraries support accessing Google Cloud services in a way that significantly reduces the boilerplate code you have to write. The libraries provide high-level API abstractions so they're easier to understand. They embrace idioms of the language, work well with the standard library, and integrate better with your codebase. By default, each API will use Google Application Default Credentials for authorization credentials used in calling the API endpoints. This will allow your application to run in many environments without requiring explicit configuration. -
15
Vegeta
HTTP load testing tool and library. It's over 9000!
Vegeta is a versatile HTTP load testing tool built out of a need to drill HTTP services with a constant request rate. It can be used both as a command line utility and a library. You can install Vegeta using the Homebrew package manager on Mac OS X. Both the library and the CLI are versioned with SemVer v2.0.0. After v8.0.0, the two components are versioned separately to better isolate breaking changes to each. CLI releases are tagged with cli/vMAJOR.MINOR.PATCH and published on the Github releases page. As for the library, new versions are tagged with both lib/vMAJOR.MINOR.PATCH and vMAJOR.MINOR.PATCH. The latter tag is required for compatibility with go mod. The JSON format makes integration with programs that produce targets dynamically easier. Each target is one JSON object in its own line. The method and url fields are required. If present, the body field must be base64 encoded. The generated JSON Schema defines the format in detail. -
16
Functional programming library golang
functional programming library for golang
This library aims to provide a set of data types and functions that make it easy and fun to write maintainable and testable code in Golang. Write many small, testable, and pure functions, i.e. functions that produce output only depending on their input and that do not execute side effects. Offer helpers to isolate side effects into lazily executed functions (IO). Expose a consistent set of compositions to create new functions from existing ones. For each data type, there exists a small set of composition functions. These functions are called the same across all data types, so you only have to learn a small number of function names. The semantic of functions of the same name is consistent across all data types. -
17
env
A simple and zero-dependencies library to parse environment variables
Parse environment variables to structs in Go. In Go, it’s dead simple to get the value from an environment variable. If you have a type that is not supported out of the box by the lib, you are able to use (or define) and pass custom parsers (and their associated reflect.Type) to the env.ParseWithFuncs() function. Env supports by default anything that implements the TextUnmarshaler interface. That includes things like time.Time for example. The upside is that depending on the format you need, you don't need to change anything. The downside is that if you do need time in another format, you'll need to create your own type. By default, slice types will split the environment value on ,; you can change this behavior by setting the envSeparator tag. If you set the envExpand tag, environment variables (either in ${var} or $var format) in the string will be replaced according with the actual value of the variable. -
18
Distribution
The Docker toolset to pack, ship, store, and deliver content
Distribution is a repository that contains the Open Source Docker Registry implementation, which is for the storage and distribution of Docker and OCI images using the OCI Distribution Specification. The goal of this project is to provide a simple, secure yet professional-grade and scalable content distribution system that lets users store, package, manage and exchange content in a reliable and efficient way. It also allows users to hack or roll their own content atop healthy open source components and implement their own solutions. The repository has three main components: the registry, libraries for interacting with distribution components, and the documentation related to the registry. -
19
Excelize
Go language library for reading and writing Microsoft Excel
Excelize is a library written in pure Go providing a set of functions that allow you to write to and read from XLAM / XLSM / XLSX / XLTM / XLTX files. With Excelize chart generation and management is as easy as a few lines of code. You can build charts based off data in your worksheet or generate charts without any data in your worksheet at all. Excelize provided streaming API for generating or reading data from a worksheet with huge amounts of data. Simply runs Excelize on macOS, Linux and Windows operating systems without a hustle. With Excelize chart generation and management is as easy as a few lines of code. You can build charts based on data in your worksheet or generate charts without any data in your worksheet at all. -
20
Interactsh
An OOB interaction gathering server and client library
Interactsh is an open-source tool for detecting out-of-band interactions. It is a tool designed to detect vulnerabilities that cause external interactions. Interactsh Cli client requires go1.17+ to install successfully. interactsh-client with -sf, -session-file flag can be used store/read the current session information from user defined file which is useful to resume the same session to poll the interactions even after the client gets stopped or closed. Running the interactsh-client in verbose mode (v) to see the whole request and response, along with an output file to analyze afterwards. Using the server flag, interactsh-client can be configured to connect with a self-hosted Interactsh server, this flag accepts single or multiple server separated by comma. Default servers are subject to change/rotate/down at any time, thus we recommend using a self-hosted interactsh server if you are experiencing issues with the default server. -
21
eBPF
ebpf-go is a pure-Go library to read, modify and load eBPF programs
Package ebpf is a toolkit for working with eBPF programs. eBPF programs are small snippets of code which are executed directly in a VM in the Linux kernel, which makes them very fast and flexible. Many Linux subsystems now accept eBPF programs. This makes it possible to implement highly application-specific logic inside the kernel, without having to modify the actual kernel itself. This package is designed for long-running processes which want to use eBPF to implement part of their application logic. It has no run-time dependencies outside of the library and the Linux kernel itself. eBPF code should be compiled ahead of time using clang, and shipped with your application as any other resource. Use the link subpackage to attach a loaded program to a hook in the kernel. Note that losing all references to Map and Program resources will cause their underlying file descriptors to be closed, potentially removing those objects from the kernel. -
22
Cobra
A Commander for modern Go CLI interactions
Cobra is a library for creating powerful modern CLI applications, and at the same time a program to generate applications and command files. It provides a simple interface for creating powerful CLI interfaces, and will also generate application scaffolding so you can quickly develop your Cobra-based application. This scaffolding includes easy subcommand-based CLIs, fully POSIX-compliant flags, global, local and cascading flags, among many others. The structure of Cobra is based on commands, flags and arguments. The commands represent actions, the central point of the application; flags modify the behavior of commands; while arguments are things. With these easy-to-use concepts, users will natively understand how to use the application. -
23
GWeb
Interact with browser from Go. Manually crafted WebAPI interoperation
gweb, strictly typed WebAPI library on top of syscall/js. Like flow or TypeScript but for Go. You need it if you want to interact with the browser from the wasm-compiled Go program. The library provides only useful methods and attributes from WebAPI. No obsolete and deprecated methods, no experimental APIs that are only supported by a few engines. Only what we really need right now. WebAPI has a long history of incremental changes and spaces for unimplemented dreams. However, we can see the full picture to provide a better experience and more namespaces. -
24
Go Tools
Various packages and tools that support the Go programming language
This subrepository holds the source for various packages and tools that support the Go programming language. Some of the tools, godoc and vet for example, are included in binary Go distributions. Others, including the Go guru and the test coverage tool, can be fetched with go get. Packages include a type-checker for Go and an implementation of the Static Single Assignment form (SSA) representation for Go programs. This repository uses prettier to format JS and CSS files. The version of prettier used is 1.18.2. It is encouraged that all JS and CSS code be run through this before submitting a change. However, it is not a strict requirement enforced by CI. This repository uses Gerrit for code changes. -
25
Gonum
Set of numeric libraries for the Go programming language
Gonum is a set of numeric libraries for the Go programming language. It contains libraries for matrices, statistics, optimization, and more. Gonum is a set of packages designed to make writing numerical and scientific algorithms productive, performant, and scalable. Gonum contains libraries for matrices and linear algebra; statistics, probability distributions, and sampling; tools for function differentiation, integration, and optimization; network creation and analysis; and more. We encourage you to get started with Go and Gonum if you are tired of sluggish performance, and fighting C and vectorization, and also if you are struggling with managing programs as they grow larger. Get Gonum if you want code to be fully transparent, and want the ability to read the source code you use. It is useful if you’d like a compiler to catch mistakes early, but hate fighting linker and unintelligible compile errors.
