Best Free Open Source Software Tools
Discover open source projects and software with MIT, Apache, and GPL licenses.
The Ultimate Open Source Software Directory
Discover the best free open source software projects on the internet. Our curated directory features hundreds of high-quality GitHub projects with permissive licenses like MIT, Apache 2.0, and GPL - all free to use for personal and commercial projects.
Whether you need web frameworks like Next.js and React, databases like Supabase and PostgreSQL, CSS frameworks like Tailwind CSS, or developer tools for building modern applications - find everything you need to build faster and smarter.
500+
MIT License
300+
Apache 2.0
200+
GPL
Showing 97-101 of 101 projects
Anki
Education
Anki is a software application or technology listed in the Education category. Anki is an educational platform that supports learning, teaching, course management, and knowledge sharing through digital tools and resources. It is intended for users who need tools in the education space, including individual users, students, developers, creators, technical professionals, and organizations where applicable. Depending on the software and platform, it can be incorporated into personal, educational, development, creative, administrative, or professional workflows. This listing is designed to give visitors a clear overview of what Anki is used for and the type of tasks it can help accomplish, making it easier to discover and compare software available for similar requirements. Features, supported operating systems, licensing terms, system requirements, integrations, editions, and availability can change over time, so users should check the official Anki website linked in this listing for the latest technical documentation, downloads, compatibility information, and usage terms.
Moodle
Education
Moodle is a software application or technology listed in the Education category. Moodle is an educational platform that supports learning, teaching, course management, and knowledge sharing through digital tools and resources. It is intended for users who need tools in the education space, including individual users, students, developers, creators, technical professionals, and organizations where applicable. Depending on the software and platform, it can be incorporated into personal, educational, development, creative, administrative, or professional workflows. This listing is designed to give visitors a clear overview of what Moodle is used for and the type of tasks it can help accomplish, making it easier to discover and compare software available for similar requirements. Features, supported operating systems, licensing terms, system requirements, integrations, editions, and availability can change over time, so users should check the official Moodle website linked in this listing for the latest technical documentation, downloads, compatibility information, and usage terms.
Logseq
Knowledge Management
Logseq is a software application or technology listed in the Knowledge Management category. Logseq is a knowledge management application that helps users organize notes, documents, ideas, and information using interconnected workflows. It is intended for users who need tools in the knowledge management space, including individual users, students, developers, creators, technical professionals, and organizations where applicable. Depending on the software and platform, it can be incorporated into personal, educational, development, creative, administrative, or professional workflows. This listing is designed to give visitors a clear overview of what Logseq is used for and the type of tasks it can help accomplish, making it easier to discover and compare software available for similar requirements. Features, supported operating systems, licensing terms, system requirements, integrations, editions, and availability can change over time, so users should check the official Logseq website linked in this listing for the latest technical documentation, downloads, compatibility information, and usage terms.
Joplin
Notes
Joplin is a software application or technology listed in the Notes category. Joplin is a note-taking application that allows users to capture, organize, search, and manage personal or professional information efficiently. It is intended for users who need tools in the notes space, including individual users, students, developers, creators, technical professionals, and organizations where applicable. Depending on the software and platform, it can be incorporated into personal, educational, development, creative, administrative, or professional workflows. This listing is designed to give visitors a clear overview of what Joplin is used for and the type of tasks it can help accomplish, making it easier to discover and compare software available for similar requirements. Features, supported operating systems, licensing terms, system requirements, integrations, editions, and availability can change over time, so users should check the official Joplin website linked in this listing for the latest technical documentation, downloads, compatibility information, and usage terms.
Obsidian
Notes
Obsidian is a software application or technology listed in the Notes category. Obsidian is a note-taking application that allows users to capture, organize, search, and manage personal or professional information efficiently. It is intended for users who need tools in the notes space, including individual users, students, developers, creators, technical professionals, and organizations where applicable. Depending on the software and platform, it can be incorporated into personal, educational, development, creative, administrative, or professional workflows. This listing is designed to give visitors a clear overview of what Obsidian is used for and the type of tasks it can help accomplish, making it easier to discover and compare software available for similar requirements. Features, supported operating systems, licensing terms, system requirements, integrations, editions, and availability can change over time, so users should check the official Obsidian website linked in this listing for the latest technical documentation, downloads, compatibility information, and usage terms.
Frequently Asked Questions About Open Source Software
What is open source software?
Open source software is code that is publicly available for anyone to view, modify, and distribute. Popular licenses include MIT, Apache 2.0, and GPL. Our directory features the best open source projects with permissive licenses.
What's the difference between MIT and Apache licenses?
MIT is a permissive license with minimal restrictions - you can use the code commercially with attribution. Apache 2.0 is similar but includes patent rights protection. GPL requires derivative works to also be open source.
Can I use open source software for commercial projects?
Yes! MIT and Apache 2.0 licensed projects can be used commercially. Just check the specific license terms - most require attribution in your documentation or source code.
How do I contribute to open source projects?
Start by finding a project you're interested in, read their contribution guidelines, and look for 'good first issue' labels. Fork the repository, make your changes, and submit a pull request.
What are GitHub stars and why do they matter?
GitHub stars indicate community interest and popularity. More stars typically mean better documentation, active maintenance, and community support. Our directory shows star counts to help you find quality projects.