Cut a video down to the part you actually need with this free tool to trim video online without uploading anything. Drop in a long recording, a screen capture or a phone clip, set the start and end time, and download just that section. There is nothing to install, no account to create and no watermark on the result: the whole job runs on your own device, in your browser.
Most online trimmers ask you to upload the whole video first, then throw most of it away, and the free tier often caps the file size or stamps a watermark on the download. This tool does the opposite. The default Lossless mode copies the original video and audio streams without re-encoding, so the quality is exactly the original and the cut finishes in seconds, even for a long recording. Your file never leaves your device, so there is no upload wait and no copy of your footage on anyone else server.
Key features
- Lossless by default: stream copy keeps the original quality with no re-encoding, so a trimmed clip looks exactly like the source.
- Nothing uploaded, nothing installed: trimming runs in your browser with FFmpeg compiled to WebAssembly. No account, no credits, no daily limit.
- Precise mode when the exact frame matters: re-encodes to H.264 and AAC so the cut lands exactly where you chose it.
- Mute in one tick: drop the audio track from the trimmed clip without a second tool.
- Save a frame as PNG: pause on the moment you want and save that frame as a picture for a thumbnail or a cover.
- MP4, WebM, MOV and MKV: videos from phones, screen recorders and most cameras, up to 500 MB.
How to use
- Drop your video onto the tool, or choose it from your device. MP4, WebM, MOV and MKV files up to 500 MB are accepted.
- Set the start and end time with the sliders, by typing seconds or minutes and seconds like 1:30, or by pressing Use current frame while the preview plays.
- Pick Lossless for speed and original quality, or Precise for a frame-exact cut, tick Mute if you want no audio, then click Trim video.
- Check the trimmed preview, then download it. The download keeps the same container as the source, except MOV clips download as MP4.
How lossless trimming works
The tool runs FFmpeg, the same video engine behind the desktop LosslessCut app, compiled to WebAssembly and running in your browser tab. In Lossless mode it does not decode and re-encode your video at all: it copies the compressed video and audio packets between your start and end points into a new file. That is why the cut is instant and why the quality cannot drop. The first trim downloads the FFmpeg engine itself, about 31 MB, which your browser then caches, so later trims start at once.
Precise mode works differently: it decodes the chosen range and encodes it again as H.264 video and AAC audio. That lets it cut on the exact frame, but it takes longer, roughly in proportion to the clip length, and re-encoding always loses a little quality, however small. Use Precise when the exact frame matters, for example cutting on a spoken line or an ad break, and use Lossless for everything else.
Honest limits worth knowing
Three limits are worth knowing before you start. First, a lossless cut can only start where the video stores a full frame, called a keyframe, so it starts at the keyframe at or before your start time. For a cut at the very beginning this changes nothing, but a mid-video cut can start a little early, usually within a couple of seconds. Check the preview before you share the clip, and switch to Precise if the start must be exact. Second, the whole file is held in memory while trimming, so the practical limit is your device memory: files above a few hundred megabytes can fail on phones, even though the tool accepts up to 500 MB. Third, the trimmed clip keeps the codecs of the source, so a clip from an unusual camera may play in some apps and not others; converting it is a separate job, and the MP4 output from a phone or screen recorder plays almost everywhere.
Once you have the clip, pull its audio out with our Video to MP3 Converter, or resize it for Reels with the Instagram Reels Resizer. This tool is part of our watermark tools collection: free, no account, and nothing to install.