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Trim Video

Cut a clip from a video by setting a start and end time, right in your browser.

Video
Drop a video here or click to browse
or paste from clipboard (Ctrl+V) · MP4, MOV, WebM, MKV
Files stay in your browser. Nothing is uploaded.
Trim range

Use mm:ss or seconds, for example 0:05 or 12.

How to trim a video online

  1. Add your video

    Drop an MP4, MOV, WebM, MKV, or AVI file onto the tool. The end field fills in with the full length automatically.

  2. Set the range

    Type the start and end as mm:ss, h:mm:ss, or plain seconds, for example 0:05 or 12, to mark the part you want to keep.

  3. Trim

    Click Trim video. The tool copies the streams without re-encoding when it can, and falls back to a clean H.264 re-encode when the cut needs it.

  4. Download

    Check the range, clip length, and file size on the result card, then click Download to save the trimmed MP4.

Why use this tool

Stream copy first

The trim seeks to your range and copies the video and audio streams directly, which is near instant and loses no quality because nothing is re-encoded.

Automatic re-encode fallback

If the cut points fall between keyframes and the copy produces a broken clip, the tool re-encodes with H.264 and AAC for a frame-accurate result.

Flexible time entry

Start and end accept mm:ss, h:mm:ss, or plain seconds with decimals, and the end field pre-fills with the full video length.

Bounded to your video

The range is clamped to the actual duration and validated before anything runs, so an out-of-range value cannot produce a broken cut.

Cut on your device

The trim runs inside the browser, so the footage is never uploaded anywhere.

About this tool

This trimmer cuts a video down to the range between a start and an end time, entered as mm:ss, h:mm:ss, or plain seconds. It runs entirely inside your browser and tries the cheapest route first: seeking to the range and copying the video and audio streams into a new MP4 with no re-encoding. When the requested cut lands between keyframes and the copy produces a broken clip, it automatically re-encodes with H.264 and AAC instead, trading a little time for a frame-accurate result.

Trimming is usually step one of every other video job: isolating the useful minute of an hour-long recording, cutting dead air off the front of a screen capture, or pulling a highlight out of a match. A stream-copy trim finishes almost immediately even on long files; the re-encode fallback takes longer in proportion to the selected range, and very large files are more comfortable on a desktop browser than on a phone.

The file stays on your device throughout. A trimmed clip is also the ideal input for the rest of the catalog: send it to the video compressor to meet an upload limit, to video to GIF for a shareable animation, or to extract audio to keep just the sound of that segment.

Frequently asked questions

How do I trim a video?
Drop a video onto the tool or click to browse. The start and end fields fill in with the full length automatically, so set the start and end of the part you want to keep, then click Trim video. The tool cuts the clip and shows you its length and file size. Click Download to save the trimmed MP4.
What time format should I use for the start and end?
You can type times as mm:ss (for example 1:30 for one minute thirty seconds), as h:mm:ss for longer videos, or as plain seconds (for example 90). The fields are bounded by the length of your video, so you can trim anywhere within it.
Is my video uploaded to a server?
No. The entire trim runs locally in your browser. Your video never leaves your device, is never uploaded, and is not stored or logged anywhere. The first time you trim, the tool downloads the video engine once; after that it stays ready for the rest of your session.
Will trimming reduce the quality of my video?
When it can, the tool copies the original video and audio streams without re-encoding, so there is no quality loss at all and the cut is very fast. If the start or end falls between keyframes, it re-encodes that clip with H.264 and AAC for a clean, frame-accurate result, which keeps quality high while making sure the clip plays correctly.
Which video formats are supported?
You can drop in MP4, MOV, WebM, MKV, AVI, and most other common video files. The output is always an MP4 with H.264 video and AAC audio, which plays on virtually every device, browser, and editor.
Is there a limit on video size or length?
There is no fixed limit, but because everything runs in your browser using your device memory, very large or very long videos take longer and use more RAM. A stream-copy trim is near instant even for long files; a clip that needs re-encoding takes longer the longer the selected range is.

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