How do I trim a video in my browser?

Drop your video into the Video Trimmer, drag the start and end sliders to the section you want to keep, and click Trim & export. The clip is cut on your own device, never uploaded, and downloads as an MP4.

Does trimming upload my video anywhere?

No. The Video Trimmer runs entirely in your browser. Your video is read from your device, trimmed locally, and never sent to ArrayKit or any server.

Is the cut frame-accurate?

Yes. The selected range is re-encoded rather than sliced on the nearest keyframe, so the clip begins and ends exactly at the timecodes you choose.

What video formats can I trim?

You can trim common formats including MP4, MOV, MKV and WebM. The trimmed clip is exported as a widely compatible MP4.

Is there a limit on how long a video I can trim?

There is no imposed file-size limit, so you can load a clip of any length. The practical ceiling is your device's memory, since trimming happens locally in one browser tab.

Can I split a video into several clips instead?

For cutting one video into multiple parts, use the Split Video tool. The Video Trimmer is best for exporting a single selected section.

Trim & Cut Video in Your Browser

Cut a clip from any video by choosing a start and end point — right in your browser, and your video never leaves your device.

The Video Trimmer runs entirely in your browser. Your video is read and trimmed on your own device and is never uploaded to ArrayKit — the file you load never leaves your computer.

Open the Split Video tool

About Video Trimmer

Video Trimmer cuts a clip out of a longer video right in your browser — pick a start and end point and export just that section, without uploading anything. Drag the start and end handles to frame the moment you want, trim off a slow intro or an unwanted ending, and download the result in seconds. It works on MP4, MOV, MKV, WebM and more, and the cut is frame-accurate because the selected range is re-encoded rather than sliced on the nearest keyframe. Your video is read from your device, trimmed locally, and never leaves your computer. Built for anyone shortening a screen recording, clipping a highlight, or tidying up footage before sharing it — no software to install and nothing sent to a server.

Features

Set a start and end point with draggable sliders and live timecodes
Frame-accurate cuts — the selected range is re-encoded, not keyframe-sliced
Trims MP4, MOV, MKV, WebM and more, exporting a clean MP4
Preview the source before trimming and the clip after
Runs entirely in your browser — your video is never uploaded
No file-size limit, and you can cancel a long trim at any time
One-click download of the trimmed clip

How to use the Video Trimmer

Drop a video file onto the page or click to choose one
Drag the start and end sliders to select the section to keep
Click Trim & export and wait for the clip to render
Preview the trimmed clip and download it

Example

Input

Start 0:05   End 0:20

Output

trimmed clip · 0:15

Keep only seconds 5 to 20 of the source — exported entirely in your browser.

Common errors & troubleshooting

The exported clip starts or ends slightly off. — Nudge the start and end sliders — trimming is frame-accurate, so the cut matches the timecodes you set.
Trimming a long 4K video is slow. — The selected range is re-encoded locally in a single browser tab. Trim a shorter section, or trim first and compress afterwards if you also need a smaller file.
The video will not load or errors out. — The source may use an unsupported or DRM-protected codec. Try a standard MP4, MOV, MKV or WebM export.

Frequently asked questions

How do I trim a video in my browser?: Drop your video into the Video Trimmer, drag the start and end sliders to the section you want to keep, and click Trim & export. The clip is cut on your own device, never uploaded, and downloads as an MP4.
Does trimming upload my video anywhere?: No. The Video Trimmer runs entirely in your browser. Your video is read from your device, trimmed locally, and never sent to ArrayKit or any server.
Is the cut frame-accurate?: Yes. The selected range is re-encoded rather than sliced on the nearest keyframe, so the clip begins and ends exactly at the timecodes you choose.
What video formats can I trim?: You can trim common formats including MP4, MOV, MKV and WebM. The trimmed clip is exported as a widely compatible MP4.
Is there a limit on how long a video I can trim?: There is no imposed file-size limit, so you can load a clip of any length. The practical ceiling is your device's memory, since trimming happens locally in one browser tab.
Can I split a video into several clips instead?: For cutting one video into multiple parts, use the Split Video tool. The Video Trimmer is best for exporting a single selected section.

Related tools

Split Video — Split a video into multiple parts by time or count and download them as a ZIP, in your browser.
Video Converter — Convert MOV, MKV, AVI, WebM and MP4 videos to MP4 or WebM in your browser — nothing uploaded.
Video Compressor — Compress video files in your browser — adjustable quality, resolution and format, nothing uploaded.
Video Resizer — Resize video for Reels, YouTube, square and more with letterboxing, in your browser.
Extract Audio from Video — Extract the audio from a video as MP3, WAV or M4A, in your browser — nothing uploaded.
Mute Video — Remove the audio track from a video in your browser — nothing uploaded.