An anonymous reader shares a report: How many YouTube videos are there? What are they about? What languages do YouTubers speak? As of 14 February 2025, the platform's will have been running for 20 years. That is a lot of video. Yet we have no idea just how many there really are. Google knows the answers. It just won't tell you.

Experts say that's a problem. For all practical purposes, one of the most powerful communication systems ever created -- a tool that provides a third of the world's population with information and ideas -- is operating in the dark. In part that's because there's no easy way to get a random sampling of videos, according to Ethan Zuckerman, director of the Initiative for Digital Public Infrastructure at the University of Massachusetts at Amherst in the US. You can pick your videos manually or go with the algorithm's recommendations, but an unbiased selection that's worthy of real study is hard to come by.

A few years ago, however, Zuckerman and his team of researchers came up with a solution: they designed a computer program that pulls up YouTube videos at random, trying billions of URLs at a time. You might call the tool a bot, but that's probably over selling it, Zuckerman says. "A more technically accurate term would be 'scraper'," he says. The scraper's findings are giving us a first-time perspective on what's actually happening on YouTube.

[...] The first question was simple. How many videos have people uploaded to YouTube? [...] Zuckerman and his colleagues compared the number of videos they found to the number of guesses it took, and arrived an estimate: in 2022, they calculated that YouTube housed more than nine billion videos. By mid 2024, that number had grown to 14.8 billion videos, a 60% jump.

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