Trim Video
Free online video trimmer with two modes: near-instant lossless cutting or frame-precise re-encoding. Runs entirely in your browser — no upload.
About this tool
Cut out exactly the part of a video you want to keep. Choose Fast mode to copy the data without re-encoding — near-instant and lossless, with the cut point snapping to the nearest keyframe — or Precise mode to re-encode for frame-exact cuts exported as MP4. Everything is processed locally in your browser.
How to use
- Click or drag to select a video file
- Preview the video to find the segment you want
- Enter the start and end time in seconds, and pick Fast or Precise mode
- Click "Trim" and download the cut video
FAQ
Which mode should I choose?
Fast mode is the default and right for most cases — it finishes almost instantly with zero quality loss. Pick Precise mode when the exact cut point matters, such as cutting on a specific frame.
Why does Fast mode start slightly earlier than I specified?
Video is stored as keyframes plus delta frames, and a copied segment can only start at a keyframe. Fast mode snaps the cut to the nearest keyframe, which may be up to a few seconds earlier. Precise mode re-encodes and cuts exactly where you asked.
What format is the output?
Fast mode keeps the original container (MP4 or WebM) since nothing is re-encoded. Precise mode always exports MP4 (AVC + AAC), which plays on virtually any device.
Are my videos uploaded to a server?
No. Decoding and encoding all run locally in your browser. Your files never leave your device.
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