Free Open Source Tools is a simple guide to free and open-source AI and digital tools. This site lists only free and open-source tools, plus clearly labelled free-tier tools.
Every listing is checked against the official site, and each tool page links to the official site or official GitHub repository. Each listing also shows whether it is open-source or free-tier.
Please note: “free-tier” is not the same as open-source. A free-tier tool offers a free plan, but its code may not be open-source. Open-source tools are labelled “Open-source”, and free-tier tools are labelled “Free-tier”.