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Curated coding interview preparation materials for busy software engineers

Virtual whiteboard for sketching hand-drawn like diagrams

Gin is a high-performance HTTP web framework written in Go. It provides a Martini-like API but with significantly better performance—up to 40 times faster—thanks to httprouter. Gin is designed for …

Square’s meticulous HTTP client for the JVM, Android, and GraalVM.

An open source payments switch written in Rust to make payments fast, reliable and affordable

A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.

ORM for TypeScript and JavaScript. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, SAP Hana, WebSQL databases. Works in NodeJS, Browser, Ionic, Cordova and Electron platforms.

🌺 Minimalist Vim Plugin Manager

A book-in-progress about the Linux kernel and its insides.

A runtime for writing reliable asynchronous applications with Rust. Provides I/O, networking, scheduling, timers, ...

A memory leak detection library for Android.

🌟 JavaScript Style Guide, with linter & automatic code fixer

Library for fast text representation and classification.

Bind Android views and callbacks to fields and methods.

A logger for just about everything.

Simple, open source, lightweight and privacy-friendly web analytics alternative to Google Analytics.

Simple, unobtrusive authentication for Node.js.

lightweight, idiomatic and composable router for building Go HTTP services

💥 A Lodash-style Go library based on Go 1.18+ Generics (map, filter, contains, find...)

An authorization library that supports access control models like ACL, RBAC, ABAC in Golang: https://discord.gg/S5UjpzGZjN

Analyzes resource usage and performance characteristics of running containers.

Diem’s mission is to build a trusted and innovative financial network that empowers people and businesses around the world.

🧰 The Rust SQL Toolkit. An async, pure Rust SQL crate featuring compile-time checked queries without a DSL. Supports PostgreSQL, MySQL, and SQLite.

⚠️ The Truffle Suite is being sunset. For information on ongoing support, migration options and FAQs, visit the Consensys blog. Thank you for all the support over the years.

HTTP server mocking and expectations library for Node.js

Full PHP development environment for Docker.

A Java API for generating .java source files.

The fastest way to build beautiful Electron apps using simple HTML and CSS

React + Redux starter kit / boilerplate with Babel, hot reloading, testing, linting and a working example app built in