n8n was founded in 2019 and is headquartered in Berlin, Germany. It is a Fair-code licensed open-source workflow automation platform with 400+ integration nodes, self-hosting and AI workflows.
Sentry, founded in 2008 and headquartered in San Francisco, is the leading open-source error tracking and performance monitoring platform serving 100,000+ teams. It supports 40+ language SDKs, APM distributed tracing, and Session Replay, with both SaaS and self-hosted deployment.
Tuta (formerly Tutanota), founded in 2011 in Hanover, Germany, is a pioneer in end-to-end encrypted email. Features the proprietary TutaCrypt encryption protocol, fully open source codebase, and a 1GB free plan.
Founded in 2008 and headquartered in San Francisco, USA, GitHub is the world's largest code hosting and collaboration platform. With 100M+ developers and 400M+ repositories, it delivers Git hosting, GitHub Actions CI/CD, Copilot AI, and project management.
Font Awesome is a web icon library created in 2012 in Boston, USA, offering 9000+ vector icons, with a free tier of 2000+ commercially usable icons and support for Web Font, SVG, and front-end components.
Plausible is an open-source, privacy-friendly web analytics tool founded in 2019 in Tallinn, Estonia, with an about 1KB script, no cookies, and out-of-the-box GDPR compliance, with cloud hosting from $9/month and free self-hosting, used by 1,000,000+ websites.
Created by Paul Falstad in 1990 at Princeton University, Zsh (Z Shell) is a powerful open-source Unix shell and the default shell of macOS.
Co-founded in 2009 by brothers Artyom Zorin and Vladimir Zorin, headquartered in Dublin, Ireland, Zorin OS is an Ubuntu-based Linux distribution.
Created by Jason A. Donenfeld in 2016, WireGuard is a modern, high-speed, secure open-source VPN protocol with about 4,000 lines of code, integrated into the Linux 5.6+ kernel.
Weaviate is an open-source vector database supporting similarity search, hybrid search, and AI-native integration, developed by Dutch company SeMI Technologies, suitable for AI applications such as RAG and semantic retrieval.
Created by Evan You in 2014, Vue.js is a progressive JavaScript frontend framework known for its progressive design, low learning curve, and excellent documentation, one of the most popular JavaScript frontend frameworks globally.
Created by Rich Harris in 2016, Svelte is an open-source frontend framework that takes a compiler-first approach, compiling applications to native JavaScript at build time, significantly reducing bundle size and improving runtime performance.
SQLite is an embedded relational database engine created by D. Richard Hipp in 2000 and released under the Public Domain license. It is the most widely deployed database engine in the world, with over 1 trillion active databases.
Ruby on Rails, released by David Heinemeier Hansson (DHH) in 2005, is an open-source web application framework known for "convention over configuration," with built-in ActiveRecord, MVC architecture, and a rich Gem ecosystem, a mainstream choice for building web apps efficiently.
MariaDB is an open-source database fork of MySQL created by MySQL original founder Michael "Monty" Widenius, maintained by MariaDB Corporation Ab (Helsinki, Finland).
Gitea is a community-driven lightweight self-hosted Git service, forked from Gogs in 2016. Built with Go, it is known for minimal resource usage and one-click installation, popular among small teams and individual developers.
Django is the most popular Python web framework, maintained by the Django Software Foundation, known for its batteries-included design (ORM, Admin, built-in auth), security defaults, and rapid development, a representative framework for Python web development.
CrowdSec is an open-source collaborative intrusion prevention system (IPS) founded in 2019 in France, using a globally community-shared malicious IP reputation database to identify and block network attacks in real time.
ClickHouse is the world's leading open-source column-oriented database management system, designed for real-time analytics and large-scale data queries. Open-sourced by Yandex in 2016, ClickHouse Inc was founded in 2021 with a $300M Series B round.
Caddy is a modern open-source web server known for automatic HTTPS and simple configuration, created by Matthew Holt in 2015, written in Go.
Graylog, founded in 2010 and headquartered in Houston, Texas, USA, is an open-source centralized log management platform offering log collection, search, alerting, and analysis with a 3-component architecture that scales to TB-level data.
Kolab Now, founded in 2008 in Switzerland, is built on the open-source Kolab groupware framework. It offers end-to-end encrypted email, calendar, contacts, tasks, and file management as a secure collaboration suite under Swiss privacy law.
Uptime Kuma is a free, open-source, self-hosted uptime monitoring tool released in 2021 with Docker one-click deployment. Supports 20+ monitor types (HTTP, Ping, Port, SSL), a beautiful status page, and 90+ notification channels.
Logz.io is a cloud log analytics platform based on the open-source ELK Stack, offering managed ELK, AI anomaly detection, infrastructure monitoring, and distributed tracing to simplify observability.