Best open-source Go projects

A CLI tool that finds leaked credentials across Git, cloud storage, chat and other sources, and checks whether each one is still live.

A self-hosted web application firewall and reverse proxy that filters HTTP traffic to block attacks like SQL injection, XSS, and bot floods.

A collection of 70 hands-on cybersecurity projects with full source code, plus certification roadmaps and learning resources, organized from beginner to advanced.

A private, self-hosted search engine that indexes the web pages you visit and the files you keep, searchable from the browser, terminal, or an AI assistant via MCP.

A Go tool for searching and downloading music from many Chinese and international streaming platforms, via CLI, Web, TUI, or desktop app.

A fast, single-binary web UI for managing multiple qBittorrent instances, with automations and cross-seeding.

Self-hosted network speed testing and server monitoring tool that runs speed tests, traces routes, and sends alerts from one binary.

A web-based management platform for operating Fail2Ban across one or more Linux hosts, with centralized ban review, unban search, and alerts.