Youtube is meant to remove video editing tools that are not very used by its users. The catalytic date appears to be September 20 2017.
Unless you are a frantic user YouTube, you may not be aware that the popular website has a video editor and photo slideshow for editing your videos in its tools. And maybe you're learning it a bit late, after Youtube decided to abolish them. If you have already tried it and you are in the middle of editing your video, you will have to finish it and publish it by 20 September, as says Google on the YouTube support page.
The possible reason that these tools are removed is of course because they are not in demand and this is the reason why the whole thing is responsible procedure είναι εξαιρετικά αργή σε σχέση με το να επεξεργαστεί κάποιος το βίντεο του, τοπικά στον υπολογιστή του, με δικά του προγράμματα. Η επεξεργασία μέσω Youtube απαιτεί να ανεβάσετε το βίντεό σας να το επεξεργαστείτε και να κατεβάσετε το τελικό αντίγραφο. Τούτου λεχθέντος, σαν ιδέα ήταν μια καλή επιλογή για τους χρήστες Chromebook ή children with low power laptops or tablets.
However, Google points out that there are many available free and paid third-party processing tools. In other words, the app was useful as a way for YouTube to attract customers when it came in 2010. But with so many apps out there, it's no longer worth the resources.
If you're willing to pay and have a decent Intel or Mac machine, there are interesting stand-alone applications for the job, such as Adobe Premiere CC, Allpe's Mac-only Final Cut Pro X, and Avid's pro-oriented Media Composer. Avid also has one free application called Media Composer First, Apple has iMovie for Mac and Clips for iOS, while Microsoft has Windows Movie Maker. If you just want a web editor, there are options like Magisto and WeVideo that work in most browsers, including Chrome on the Chromebook.
Finally, Google maintains Youtube enhancement tools, which can filter, mute and cut videos.