UseFreeTools

Browser Video Trimmer

Re-record a selected short interval from a local supported video and download the resulting WebM clip.

Files stay on your device No sign-up Free to use
How this works

The tool runs in this browser. Your file or text is not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.

Privacy details

Drop your file here

or choose one from your device

One browser-decodable MP4/MOV-family or WebM video. Up to 256 MiB, 60 minutes, 8.3 megapixels, one video track and at most one audio track.

    End must be after start and within the source. Choose at most 10 minutes; browser playback timing is approximate.

    How to use Browser Video Trimmer

    1. Choose a video and enter Start time and End time as offsets from its beginning.
    2. Keep the end within the source and the selected duration below the output limit.
    3. Run the trim with the page visible, then review the first and last moments and any audio.

    Example: Browser Video Trimmer

    Retain the middle two seconds of a four-second clip.

    You add
    Source: a four-second supported video. Start time: 1; End time: 3 seconds.
    You get
    The new WebM shows the selected 1–3 second interval, with a nominal duration of two seconds and the actual recording duration stated in the result.

    Options

    Start time (seconds)
    Start is the requested seek offset in seconds from the source beginning. It is not an exact frame number.
    End time (seconds)
    End must follow Start and stay within the clip. Their difference sets the intended interval; the result reports actual recorded duration.

    Supported inputs and limits

    Records the selected interval. Cut boundaries depend on browser seeking and playback. Use a browser-decodable MP4/MOV-family or WebM with one video track and at most one audio track. Total selected input: 256 MiB; source frames: 8,294,400 pixels (4K). Sources may be up to 60 minutes, but whole-clip jobs require a clip of 10 minutes or less. Selected or combined output: up to 10 minutes and 128 MiB, 2,073,600 pixels (1080p) and 1,920 pixels per side. Recording runs in real time and the page must stay visible. WebM export re-encodes the media, so quality, frame timing and sound timing depend on the browser and device. Metadata, subtitles and extra tracks are not preserved. Seek cues are not built; check playback before using the file. Larger jobs need more device memory.

    Where your input is processed

    This tool processes your input in this browser. Your text and files are not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.

    The cut is a new recording

    Playback starts at the selected seek time and runs toward the end time while the browser records. Timing is approximate rather than sample- or frame-exact. If a precise edit point matters, inspect the exported clip in its intended player. The original video, metadata and encoding are not preserved as a lossless stream.

    Leave room under the maximum

    A selection nominally at the 20-second limit can overrun due to recording delays and be refused. Choose a shorter interval so the browser can finish within the actual-duration cap. An end before the start, outside the source or leaving no usable interval cannot produce a valid cut.

    Questions about Browser Video Trimmer

    Are trim boundaries frame-perfect?

    No. Seeking and native recording can shift the selected boundaries slightly.

    Does trimming avoid re-encoding?

    No. Decoded playback is recorded as a new WebM, so quality and size may change.

    Can I trim a long source to a short result?

    A supported source may be up to 60 minutes, while the selected export must stay within 10 minutes.

    Project manager: Tony Hines · Content updated 4 October 2026 · Report a problem

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