About Trim video
Trim video online to keep a short demonstration, remove an unwanted introduction, or share a selected passage. You can cut a video without uploading by choosing start and end times on your device. MP4 and WebM exports depend on the input tracks and the browser's available codecs.
How to cut a clip from a video
- Select a local video and inspect its duration.
- Enter start and end times in seconds and choose MP4 or WebM.
- Select Process, preview the exported clip when supported, and download it.
A practical example
- Input
A 60-second video; Start: 10; End: 25; Container: MP4.
- Result
An MP4 clip covering the selected 15-second interval, if the browser supports its tracks.
A precise boundary may require re-encoding. This is not a promise of lossless cutting or identical output size.
Supported input and limitations
- One file up to 512 MB is accepted. Available memory, decoders, and encoders can impose lower limits.
- Unsupported track combinations produce an error. Do not assume every MP4, MOV, WebM, or MKV file will work in every browser.
Processing happens on your device. Read about local processing and optional workspace recovery.
Frequently asked questions
Can I trim an MP4 without re-encoding?
Compatible tracks may be copied, but precise cut points can require re-encoding. The tool does not guarantee a lossless stream-copy result.
Why does video trimming fail in my browser?
A container can hold codecs that the browser cannot decode or encode. Try another output container or a current browser with support for the source tracks.