MOV Trimmer — Trim QuickTime Files Online Free
iPhone and Mac cameras export to MOV. This trimmer cuts them frame-accurately without re-encoding — perfect for trimming a screen recording or a Live Photo before sharing.
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Tamaño máximo: ~2 GB (según memoria)
Why use this MOV Trimmer?
- Native MOV support — no need to convert to MP4 first.
- Stream-copy lossless: the H.264 / HEVC stream is repackaged with new boundaries.
- Browser-only — sensitive iPhone footage never leaves your device.
- Output stays MOV (or MP4 with one click via the Video Converter).
How to use it
Drop the MOV file onto the trimmer
iPhone exports up to 4 GB are typical; the trimmer handles them as long as your browser has enough memory.
Pick the start and end points
For LivePhoto-style clips, the typical good cut is 1.5 seconds.
Download the trimmed MOV
Output stays in QuickTime format, ready for AirDrop or Final Cut Pro.
FAQ
Will macOS QuickLook and Photos still preview the trimmed file?
Yes — the trimmer preserves the QuickTime container including the moov atom, so Preview, QuickLook, and Photos all behave normally.
My MOV uses HEVC — does that work?
Yes. Stream-copy operates at the container level, so H.264 and HEVC inside MOV both trim losslessly.
Does this run in my browser?
Yes — the tool uses FFmpeg compiled to WebAssembly. Your file never uploads to a server, never leaves your device, and there is no signup or watermark.