There is no enforced limit on how long you can make your Clipchamp projects, but we recommend limiting video lengths to 10 minutes or less for the best performance.
Videos longer than 10 minutes may still work, but they are more liable to cause issues on some computers when exporting, depending on the CPU, graphics card, memory, disk space, and other factors.
If you'd like to use Clipchamp with longer videos, it's a good idea to run a test by adding a longer clip into an editing project, making a few quick edits to it and exporting it to check if the process completes before spending more time on more extensive edits.
Webcam and screen recordings in Clipchamp are currently limited to 30 minutes maximum length.
Please see the following article to make sure Clipchamp works well for you.