Finding open source to add a capability to a website or a codebase. You paste a site and say what you want next (web scraping, payments, video avatars), and you get the GitHub projects that do it, each with why it fits and how to wire it in. Use it on your own site, or on someone else's.
A repo (short for repository) is a project's code, hosted on GitHub. Almost every open source tool lives in one. When this tool recommends a repo, it is pointing you at a real, installable project (its code, its docs, and the community around it) that you can add to yours.
Yes. Open source means the code is public and free to use, change, and ship. That is the whole idea. You do not pay to use these projects. You might choose to pay for hosting or a managed version of something, but the library itself is free.
Usually not. Most popular projects use permissive licenses (MIT, Apache 2.0, BSD) that let you use them commercially as long as you keep the license and attribution. A few use copyleft licenses (GPL, AGPL) that ask you to share your changes under the same terms, so glance at the license file if you are shipping a closed product. For the common MIT or Apache case, you are fine. This is a guide, not legal advice.
Yes, and it is one of the best ways to use it. Paste their site, find the right open source for a gap they have, and pitch them on adding it. Plenty of people do this as paid integration work: you bring the project and the plan, they get a better site.
A little helps for reading the recommendations. To actually integrate a project you will want a developer, or an AI coding tool like Claude Code. The "how" line on each result card is the starting point for that work.
Still curious? Send a question or try the tool.