Cut the start or end off any clip in about a second — right here in your browser, with nothing uploaded anywhere.
Drag in an MP4 or MOV, or tap to pick one. It opens instantly — there is no upload step at all.
Drag the handles to keep just the part you want. Fast trim cuts losslessly at the nearest keyframe; exact trim is frame-precise.
Fast trims copy the video data without re-encoding, so a two-minute clip exports in about a second. Then it downloads — done.
Upload sites spend minutes moving your file to their servers before work even starts. Zimblu skips the network entirely.
We could not look at your video if we wanted to — it never reaches us. Processing runs inside your browser, on your hardware.
No account, no watermark, no export limit, no "pro" upsell wall in front of the download button.
No. Zimblu runs entirely in your browser using your device's own video hardware. The file never leaves your computer or phone — you can even switch off your internet connection after the page loads and trimming still works.
With "fast trim" on, Zimblu cuts at the nearest keyframe and copies the video data without re-encoding it. A cut that takes minutes on upload-based sites finishes in about a second, with zero quality loss.
Fast trim snaps your start point to the nearest keyframe and copies the video losslessly — near-instant. Exact trim cuts on the precise frame you choose, which requires re-encoding the clip once. Both keep the original audio untouched.
No watermark, ever. Fast trim is lossless — the video data is copied, not re-compressed. Exact trim re-encodes once at a bitrate matched to your source, which is visually indistinguishable for normal footage.
MP4 and MOV files with H.264 or HEVC video — which covers phone recordings, screen captures and most camera footage. Files up to about 1 GB or 15 minutes work comfortably in the browser; for longer videos the Zimblu iOS app has no limits.