FILE - In this April 30, 2019, file photo, Facebook CEO Mark Zuckerberg makes the keynote speech at F8, Facebook's developer conference in San Jose, Calif. The Boston-based renewable energy developer Longroad Energy announced in May that Facebook is building a massive new solar farm in West Texas, a project believed to be one of the largest in the nation and the social media giant's first direct investment in renewable energy. (AP Photo/Tony Avelar, File)

Facebook wants to rid the internet of garbage. But it can’t do that alone. So today, it’s making two of its photo- and video-flagging technologies open-source and available on GitHub.

It hopes the algorithms will help others find and remove harmful content — like child exploitation, terrorist propaganda and graphic violence.

Currently, when Facebook finds offensive photos and videos, it removes them and its algorithms assign a hash, or a digital fingerprint. Its technology can then use those hashes to determine whether two files are the same or similar, even without the original image or video.

So when multiple copies of, say, terrorist videos appear online, Facebook has a better chance of spotting them.

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