Video Trimmer

Trim video files online. Set start and end times with a visual timeline or manual input. Download trimmed video as WebM. Free, fast, and works entirely in your browser with no sign-up required.

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Video Trimmer

Trim video files online. Set start and end points with a visual timeline. Download as WebM.

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Privacy First: All video processing happens locally in your browser. No files are uploaded.

Frequently Asked Questions

How accurate is the trim?

Accuracy depends on browser seek precision, typically within 0.1 seconds. For frame-accurate trimming, use FFmpeg: ffmpeg -ss 00:00:05 -to 00:00:15 -i input.mp4 -c copy output.mp4

Why does export take a long time?

The browser must play the video in real time to capture frames. A 5-minute trim takes ~5 minutes to export.

What is the output format?

WebM (VP9). For MP4 output, convert the WebM using HandBrake or FFmpeg after downloading.

Is the Video Trimmer free to use?

Yes, the Video Trimmer is 100% free with no registration, no hidden fees, and no usage limits. All processing happens locally in your browser, ensuring complete privacy.

Is my data safe with this tool?

Absolutely. The Video Trimmer processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.

Does the Video Trimmer work on mobile devices?

Yes, the Video Trimmer is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

Do I need to create an account to use this tool?

No account or registration is needed. Simply open the Video Trimmer in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

How do I use the Video Trimmer?

Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.

Which browsers are supported?

The Video Trimmer works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

What is the difference between trimming and cutting a video?

Trimming and cutting overlap in everyday use, but they describe slightly different actions. Trimming usually means shortening a clip from its ends — pulling in the start point, the end point, or both — so you keep one continuous segment and discard everything outside it. Cutting can mean the same thing, but it also describes splitting a clip into pieces or removing a section from the middle and joining the remaining parts. This tool focuses on trimming: you mark a single start and end and keep the region between them as one clip. That makes it ideal for grabbing a highlight, dropping dead air at the front, or isolating one moment. For mid-clip removals or stitching multiple segments, a full editor is the better fit. Load your file above and drag the handles to set your trim.

How do I trim a video to 60 seconds for Instagram Reels or TikTok?

Load your video, then set the selection so the gap between the start and end points is exactly 60 seconds. The live badge shows the current trim duration as you adjust, so you can watch it tick toward 1:00. For precision, use the manual time inputs in MM:SS.ms format — for example, set the start to 00:05.00 and the end to 01:05.00 for a clean 60-second cut. The visual timeline and the typed values stay in sync, so dragging a handle updates the numbers and vice versa. Once the region is right, export and download the WebM, which uploads cleanly to Reels, Shorts, and TikTok. Note that each platform has its own length limits, so confirm the current cap before publishing. Open the trimmer above to clip your segment to the exact length you need.

Can I convert the trimmed WebM file to MP4?

Yes. The trimmer exports WebM (VP9) because that is what the browser's built-in recorder produces, but you can convert the result to MP4 afterward with a free tool. HandBrake offers a simple drag-and-drop interface: load the WebM, pick an MP4 preset, and start the encode. If you prefer the command line, FFmpeg converts in one step with ffmpeg -i input.webm output.mp4. WebM itself already uploads fine to YouTube, Instagram, TikTok, and most social platforms, so conversion is only necessary when a destination specifically requires MP4 or when you are importing into editing software that does not read WebM. For a frame-accurate MP4 with no re-encoding at all, the tool also surfaces a copy-paste FFmpeg trim command. Trim your clip above first, then convert the download if a particular workflow needs MP4.

Why is the trimmed file size smaller than the original video?

Two things change the file size when you trim. First, you are keeping only part of the source, so a 15-second cut from a 60-second clip carries roughly a quarter of the original footage and lands near a quarter of the size — the live badge estimates this by scaling the source size to how much of the video you keep. Second, the export re-encodes your selection to WebM using the VP9 codec at 30 frames per second, and that encoding can shift the size up or down depending on how the original was compressed. Because it re-encodes rather than copying the original stream, the result is not a byte-for-byte slice; it is a freshly rendered clip. That is also why the estimate is approximate rather than exact. Load a video above and the badge will preview the projected output size as you adjust your selection.

What video file formats can I load into the trimmer?

The trimmer accepts the common formats that phones, screen recorders, and cameras produce: MP4, WebM, and MOV. MP4 is the near-universal default from smartphones and most cameras, MOV is the typical output from Apple devices and screen-capture apps, and WebM is common from web recordings. Because the tool relies on your browser to decode and play back the video for frame capture, playback support depends on the codecs your browser can read — standard H.264 MP4 and VP9 WebM work everywhere, while less common codecs inside a container may not preview. Whatever you load, the export is always WebM (VP9), regardless of the input format. If a file refuses to load, re-encoding it to a standard MP4 first usually resolves it. Drag your MP4, MOV, or WebM into the tool above to start setting your trim points.

About the Video Trimmer

The Video Trimmer is a free online tool for cutting a clip out of a longer video. Load a file, mark where the segment should begin and end, and download just that section — no editing suite, no account, and no upload. It is built for the everyday cut: clipping a highlight for a Reel or Short, lopping off a few seconds of dead air at the start of a screen recording, or pulling a single quotable moment out of a longer talk to share on social.

Everything happens inside your browser. The video you load never leaves your device — there is no server upload, no storage, and no sign-up wall. That matters when the footage is an unreleased ad, a client review cut, or personal video you would rather not hand to a third-party service.

Setting your start and end points

The trim selection works two ways, and they stay in sync:

  • Visual timeline — a track represents the whole video. Drag the start handle and the end handle to scrub the in and out points, and the highlighted region shows exactly what will be kept.
  • Manual time inputs — type precise times in MM:SS.ms format (for example 00:03.50 to 00:12.00) when you know the exact moment you want.

When a clip loads, the tool defaults to a selection from the start to the 10-second mark, then leaves the rest to you. A live badge shows the trim duration and an estimated output size, which it projects from the source file size in proportion to how much of the video you keep — so a 15-second cut from a 60-second clip lands near a quarter of the original size.

How the export works (and what to expect)

The Video Trimmer captures your selection by playing it back and recording the frames to a new file. It draws each frame to a canvas at 30 frames per second and encodes the result through your browser's built-in recorder. Two practical consequences follow from this approach:

  • Export runs in real time. Because the video has to play through to be captured, a 5-minute selection takes roughly 5 minutes to export. Keep the browser tab active and in the foreground until it finishes.
  • The output is WebM (VP9). The downloaded file is named after your source with a _trimmed suffix. WebM plays natively in Chrome, Firefox, and Edge and uploads cleanly to YouTube, Instagram, TikTok, and most social platforms.

This is frame-capture trimming, not a stream copy, so the cut is precise to roughly a tenth of a second rather than locked to exact keyframes. If you need a frame-accurate MP4 with no re-encoding, the tool surfaces the exact FFmpeg command for it: ffmpeg -ss 00:00:05 -to 00:00:15 -i input.mp4 -c copy output.mp4.

Who it is for and when to reach for it

A browser-based trimmer is the fastest path when you have one quick cut to make and do not want to open desktop software or send your footage to an online editor:

  • Social clips — trim a long recording down to a 15-, 30-, or 60-second segment that fits a Reel, Short, or TikTok.
  • Cleanup — drop the silent lead-in on a screen capture or the few seconds before a presenter starts speaking.
  • Sharing a moment — isolate one answer from an interview or one play from a game to post on its own.

Supported inputs include MP4, WebM, and MOV — the common formats from phones, screen recorders, and cameras. For heavier projects with multiple cuts, transitions, or guaranteed MP4 output, a full editor or FFmpeg is the better fit; for a single fast trim done privately in the browser, load your file above and start dragging the handles.