Is this a full video editor or just a trimmer?
It is the CutFast timeline: cut, captions, text, canvas ratio, and MP4 export. One-job tools like trim and merge stay on their own pages so search intent does not collide.
Online video editor in your browser
Drop a file or paste a link. Cut on the timeline, add captions, switch to 9:16 for Shorts, export MP4 — without installing an app.
FAQ
Can I paste a YouTube or Bilibili link?
Yes. Paste the URL and open the cut editor. CutFast pulls captions when they exist, then you edit on the timeline.
Does a dropped file leave my computer?
The preview and export on this page run in the tab. Opening the full timeline is a separate step you choose.
Can I export 9:16 for Shorts?
Yes. Switch the canvas to 9:16, 16:9, or 1:1 before you export MP4.
Where do captions come from?
From the source when you paste a link, or add them in the editor. The auto caption tool is a dedicated page if you only need subtitles.
How is this different from CapCut or Canva?
Those are full creative suites. CutFast is a browser editor for one clip: get in, cut, caption, export. No project cloud and no template mall.