ALTools
Trim Video
Remove multiple sections from a video and export the remaining parts as one file.
How to use this tool — step-by-step guideHow Video Trimming Works
Upload a video in common formats. Mark the sections you want to remove—intros, mistakes, or dead air. ALTools processes locally; files are never sent to a server and no account is required.
Preview on a timeline, add cut regions, and fine-tune start and end points. The tool removes marked spans and joins the remaining footage into a single MP4 in your browser.
Cut out ads or pauses, shorten talks and podcasts, remove bloopers from vlogs, or tighten screen recordings before publishing.
Because trimming runs locally, confidential footage stays on your device. Reversible editing until export—adjust regions as often as you need without re-uploading.
Export a shorter MP4 with only the parts you kept, ready to post or drop into another editor.
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Frequently Asked Questions
Can I remove more than one section?
Yes. Add multiple red segments on the timeline, drag edges to adjust, then export.
What happens to the parts I mark to remove?
Only the unmarked (kept) portions are joined in order into a single MP4. The video is re-encoded, so quality depends on the source and length.
How is this different from Extract Video Clips?
Trim Video marks sections to delete. Extract Video Clips marks sections to keep — better when you only want a few highlights from a long video.
Is my video uploaded?
No. Trimming runs entirely in your browser.