Add an effect
Effects animate over time, so they need a clip on a timeline to run against. The full editor has 20 of them with live preview — this page takes you there with your file.
An effect has a phase: it builds, peaks and fades. That needs a position on a timeline, which is exactly what a one-shot conversion does not have.
The editor has 20 effects, all previewed against your own footage rather than a stock clip.
Preview and export share the same rendering path, so what you approve is what you get.
FAQ
How many effects are there?
20 in the editor.
Can I control the timing?
Yes — an effect can cover a whole clip or just part of it.
Can I stack several?
Yes, within reason; each one costs export time.
Will the preview match?
Yes, same code path.
Is it free?
Yes.