Trim Your Video In Seconds
Your file is never uploaded to a server. All trimming happens directly in your browser, on your device, using WebAssembly (FFmpeg).
Drag your video here
or click to choose a file · MP4, WebM, MOV
Format: minutes:seconds.milliseconds (e.g. 01:23.500). You can also type into a field and press Enter.
File Info
Cut Mode
How to Trim a Video
Trimming a video has never been this simple. With ZeroCutLab's Video Cutter, just drag a video file from your computer or phone into the upload area above, or click "Choose File" to select one. Once the video loads, drag the blue handles on the timeline that appears to set the start and end points, or type values manually with second and millisecond precision if you prefer. Use "Preview Selection" to check the trimmed section before downloading, then click "Cut & Download" to finish the job. When it's done, your trimmed MP4 file downloads automatically to your device.
Privacy and the Advantages of Browser-Based Processing
Unlike traditional online video editors, ZeroCutLab's Video Cutter never uploads your videos to a server. All trimming and conversion happens directly inside your own browser, using your own processor, thanks to WebAssembly (WASM). This means your private, corporate, or personal content never leaves your device — and video processing can continue even if your internet connection drops. The long wait times, file size limits, and privacy concerns that come with server-based solutions simply don't apply here. And because there's no server cost, the service can be offered completely free.
Frequently Asked Questions
Are my videos uploaded to a server?
No. Your video file never leaves your device; everything happens locally in your browser.
Which video formats are supported?
You can upload MP4, WebM and MOV files, and download the result as MP4.
What's the difference between "Fast" and "Precise" cut mode?
Fast mode cuts without re-encoding (stream copy), so it produces a result in seconds, but the cut point may shift to the video's nearest keyframe. Precise mode re-encodes the video to cut exactly at the second you selected, but it can take longer depending on your device's power.
Does it work with large files?
It's limited by your browser's memory and your device's processing power, but most short-to-medium length videos work without issue. Some slowdown in the browser tab is normal with very large files.