Add a transition
A transition lives between two clips, so it needs a timeline to sit on. The full editor has 13 of them with live preview, and this page takes you there with your files.
A transition is not something you apply to a clip, it is something that happens between two of them. That only exists once there is a timeline.
The editor has 13 transitions — dissolve, wipes, slides and the rest — each with an adjustable length and a live preview.
What plays in the preview is what gets exported. The two are the same code path, so there is no surprise at the end.
FAQ
How many transitions are there?
13, each with an adjustable duration.
Can I put one at the very start?
A fade from black at the start is an entrance animation rather than a transition, and the editor has those too.
Does the preview match the export?
Yes, they run the same rendering path.
How long should a transition be?
Half a second is the usual default; longer reads as deliberate, shorter as a cut.
Is it free?
Yes.