Trim video
Cut a segment from your MP4 video by choosing the start and end points.
How to trim an MP4 video online for free
Upload your MP4 file
Drag and drop your video, or click to select it. You can preview it directly on the page.
Choose the start and end of the trim
Play the video to the point you want and click "Use current position" to mark the start and end, or type the seconds directly.
Download your trimmed video
Click the trim button and download the new file, containing only the segment you selected.
Why trim a video on PDFDocks?
Trimming a video is useful to keep only the part you're interested in, without needing to download editing software. PDFDocks does it directly in your browser, without uploading your video to any server.
Is it safe to trim a video online with PDFDocks?
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Yes. Your video is never uploaded to a server: the trimming happens directly in your browser.
Why doesn't the trim start exactly at the second I chose?
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To make the trim nearly instant, the entire video isn't reprocessed — existing frames are reused instead. That's why the start adjusts to the nearest keyframe, which may shift the cut forward by a fraction of a second.
Does video quality get lost when trimming?
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No. The trimmed segment maintains exactly the same quality as the original video.
Do I need to install any software?
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No, there's nothing to install. It works directly from your browser.
Is there a file size limit?
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We haven't set any artificial limits. The only real limit is your device's memory.
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