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Drop-in replacement for builtin Go errors. This is a minimal error handling package with custom error types, user friendly messages, Unwrap & Is. With very easy to use and straightforward helper functions

A library to create your custom error builders producing structured errors with metadata from different sources and optional stacktraces

Fast parallel directory traversal library (used by [fzf](https://github.com/junegunn/fzf))

A simple HTTP middleware to automatically handle all your file upload needs

Modern full-lifecycle PDF library for Go — parse, extract tables, generate, and sign documents with zero CGO dependencies

High performant & accurate currency computation package

High performance 128-bit fixed-point decimal numbers

Go client library for interacting with Coinpaprika's API

Library for the crypto NOWPayments API

Invoice and billing document framework. JSON Schema based. Automates tax calculations and validation, with tooling to convert into global formats

Technical analysis library providing financial indicators, strategies, and backtesting framework

A programmable financial ledger that provides a foundation for money-moving applications

Immutable monetary amounts and exchange rates with panic-free arithmetic

Query OFX servers and/or parse the responses (with example command-line client)

High performance, high precision, zero allocation fixed-point decimal library for financial applications

Eliminates boilerplate code for parsing HTTP requests by binding cookies, headers, query params, path params, body to structs and more by using simple tags

Monad, Functional Programming features for Golang

Functional Experiment in Go

Functional helpers library providing Map, Filter, Reduce and other stream operations on generic slices Go1.18+ with lazy evaluation and error handling mechanisms

Functional programming framework for Go

Generic option and result types that optionally contain a value

Archetype-based Entity Component System (ECS) for Go

dead simple 2D game engine in Go

Go bindings for the [Simple DirectMedia Layer](https://www.libsdl.org/)

Performance oriented 2D/3D math package for Go

GPU application framework with windowing, input, and rendering built on WebGPU — reduces 480+ lines of GPU code to ~20, zero CGO (GoGPU ecosystem: [gg](https://github.com/gogpu/gg), [ui](https://github.com/gogpu/ui), [wgpu](https://github.com/gogpu/wgpu), [naga](https://github.com/gogpu/naga))

Game server skeleton implemented with golang

Scalable game server engine, featuring space-entity framework and hot-swapping

Generic 2D grid with ray-casting, shadow-casting and path finding

Game engine for creating retro games for modern computers. Inspired by Pico-8 and powered by Ebitengine

Hand-crafted 2D game library in Go

Feature rich type-to-type copy code generator

Generate any code based on Go types, including type-to-type converters (copy code) without reflection by default

Code generation tool providing generics, free-form macros, conditional compilation and HTML templating

Code generation for enum encoding from code comments

Generate OpenAPI 3.1 specs from Go source code via static analysis with automatic framework detection

Generate HTTP server and client from protobuf

Detects image borders and converts to GeoJSON for GIS operations

Publish Your GIS Data(Vector Data) to PostGIS and Geoserver

Go wrapper for GDAL

Compile shell scripts to Go

Transpile C code to Go code

Compiler from Go to Haxe to Javascript/C++/Java/C#

Library to manage component lifecycle in microservice architectures

Concurrency limiter with support for timeouts, dynamic priority and context cancellation of goroutines

A concurrent toolkit to help execute funcs concurrently in an efficient and safe way. It supports specifying the overall timeout to avoid blocking and uses goroutine pool to improve efficiency

CyclicBarrier for golang

Structured concurrency made easy

Solution for accumulation of events and their subsequent processing

A tiny library for writing concurrent programs using actor model