Zoven

Video Trimmer

Cut video online, trim MP4, MKV, MOV by start and end time

What is the Video Trimmer?

The video trimmer works like this: it cuts video segments by start/end timestamps with frame-accurate keyframe awareness. Everything happens on your device - the input never leaves your tab unless the tool clearly states it performs a server-side lookup.

How to use the Video Trimmer

1. Select your audio or video file.
2. Set the conversion options (format, quality, range).
3. Process - the browser engine handles it locally.
4. Download the output.

Features

• Powered by in-browser FFmpeg (WebAssembly)
• Your files never upload anywhere
• Progress shown while processing runs

Common mistakes to avoid

• Choosing bitrates below the platform minimum
• Re-encoding already-compressed files repeatedly

Examples

Input	Result
Keep 02:10-04:35 of a vlog	A 2m25s clip, other parts untouched

Best used for

• Getting a reliable answer for video trimmer without installing an app
• One-off tasks done in under a minute from any device
• Checking results before committing them to something important
• Working on a phone where desktop software is unavailable

Privacy

Audio and video processing runs on your device with WebAssembly FFmpeg; your files are never uploaded.

Frequently asked questions

Why did my trim re-encode?

Cutting only between keyframes allows lossless trimming; other cut points require a quick re-encode for a clean file.

How frame-accurate is trimming?

Cuts land on keyframes with sub-second precision for the in-between frames - visually the segment starts and ends exactly where you scrubbed it.

Why did trimming re-encode my video?

Cutting between keyframes requires it - cuts landing exactly on keyframes export losslessly, and the tool uses that fast path whenever the timestamps allow.

More like this

Zoven offers 200+ free browser tools. Browse by category - Calculators, Converters, Generators, Developer Tools and Media Tools - or read workflow guides on the Zoven blog.