AlphaCut
Just set the start and end points, and it will trim that section and save it as a new file.
Drag and drop your video file here, or click to select
Supports MP4, WebM, MOV, MKV
Drag the slider or type in the times directly to precisely select your desired section.
Trimming is done 100% in your browser, so no data is sent to the server.
Re-encoding is required, so it may take time depending on the video length, but you can work directly in your browser without any additional installation.
There are no limits on the number of trims or file size.
Editing guide
Video trim means choosing a start and end point from a longer source and saving that continuous section as a new file. It is the first edit to make when you only need a meeting quote, a lecture chapter, a gaming highlight, a product demo moment, or the useful part of a screen recording.
AlphaCut's video trim tool lets you select the range in the browser without sending the source file to an external server. After trimming, you can crop for platform framing or compress the shorter file for upload and sharing limits.
Trimming keeps one continuous segment. It does not combine multiple scenes like a full editor, but it is the fastest way to remove unnecessary lead-in and ending footage.
Perfect frame-level lossless cuts depend on the file structure and keyframe positions. Browser-based tools may re-encode for compatibility and stable playback, especially across different containers and codecs.
Leave a small amount of breathing room before speech or action begins. Cutting exactly on the first sound can make the result feel abrupt, especially for interviews, tutorials, and demos.
Do the same at the end of the clip. For Shorts or Reels, the first second matters more, so you may choose a tighter start point to keep the hook immediate.
Shorter duration usually reduces file size, but upload limits may still require compression. If the clip is going to a vertical platform, crop after trimming so the main subject stays centered.
Play the exported file and check audio entry, caption timing, and scene transitions. If anything feels clipped, shift the start or end point by a second and export again from the original.
No. The entire trimming process occurs in your browser, so no data is sent to any server.
Segment trimming requires re-encoding, so it may take time depending on the video length and resolution. Longer videos will take more time.
Yes, you can drag the slider or directly input the start/end times.
It will be saved in the same format as the original. If you input MP4, it will output MP4; if WebM, it will output WebM.
Yes, it works on mobile browsers. However, for large videos, compressing on a PC is faster and more stable.
No need to trim manually. AI knows exactly where to cut. Just upload your video, and Shorts will be generated automatically.