Trim Video
Cut a video to a specific time range. Drag the markers, preview, download.
Cut a video to a specific time range — keep just a segment from the middle, or remove dead time from the start or end. Drop a video, drag the start and end markers, preview the cut, download.
How it works
4-step walkthrough
How it works
4-step walkthrough
- 1
Drop the video
MP4, MOV, MKV, WebM. Dropvert decodes the file with HTML5 video so you can preview while picking the cut points.
- 2
Drag the start and end markers
Two range sliders set the cut window. The preview seeks to the active marker so you can see the exact frame where the cut starts or ends.
- 3
Pick stream-copy or re-encode
Stream-copy (default): fast, lossless, but cuts snap to the nearest preceding keyframe (typically 1–2 seconds of slack). Re-encode: slower, slightly larger output, but cuts on any frame for frame-accurate trims.
- 4
Trim and download
Output is MP4 with H.264 / AAC — universal compatibility.
Why use Dropvert
Local-first, free, no upload required
Why use Dropvert
Local-first, free, no upload required
- Visual marker dragging with live video preview at the active marker.
- Frame-accurate option when stream-copy's keyframe snap isn't precise enough.
- Stream-copy mode is essentially instant for any source size.
- Browser-side — works on private footage without upload.
- No watermark on the output.
Frequently asked questions
5 answered
Frequently asked questions
5 answered
- What does "stream-copy" mean?
- FFmpeg can either decode a video and re-encode it (slow but flexible) or copy the encoded data directly without touching it (fast and lossless). Stream-copy is the default here — it's the right choice for most quick trims. The trade-off: video can only be cut on keyframes (typically every 1–2 seconds), so the actual cut may snap to slightly before your chosen start time.
- When should I turn on frame-accurate?
- When you need to cut at a specific frame — e.g., a specific word in a podcast, a specific gesture in a clip — and the keyframe snap from stream-copy lands on the wrong frame. Frame-accurate mode re-encodes the trimmed segment, taking a few minutes but cutting exactly where you want.
- Will the audio stay in sync?
- Yes. Both stream-copy and re-encode preserve audio sync. If sync is off in your source, it'll be off in the output too — Dropvert doesn't fix that.
- How long does trim take?
- Stream-copy: ~1 second per minute of source duration. Re-encode: ~25–50% of the trimmed clip's duration. A 30-second re-encoded trim takes ~10–15 seconds on average hardware.
- Is the output watermarked?
- No.
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