Video Trimmer — Cut a Video in Your Browser
The Video Trimmer lets you cut a video down to just the part you want: pick a start point and an end point, preview the result, and export the trimmed clip. Everything runs inside your browser, so you can shorten a clip without installing software or waiting for an upload.
It is built for the everyday "I only need this section" task — trimming dead air off the beginning, cutting to a highlight, or grabbing a short clip out of a longer recording. A filmstrip timeline shows thumbnails across the whole video, and two draggable handles mark the range you keep.
How to Trim a Video
Load your video
Drag a video file onto the upload area, or click it to browse your device. The tool accepts the formats your browser can decode, including MP4, WebM, MOV, MKV and AVI. Once loaded, you see the player, the file details (dimensions, duration and size), and the timeline.
Set the start and end
Mark the range to keep in three ways: drag the Start and End handles on the timeline (the area outside your selection is dimmed), type exact times into the Start and End boxes (for example 0:05.0 or 12.5) and press Enter, or use the set-to-position buttons — or press I / O — to snap the start or end to the current playhead.
Preview the cut
Press play, click the video, or tap Space to watch your selection. With Loop selection on, playback repeats inside the chosen range so you can check the in and out points. Drag the timeline to scrub, or use , and . to step a single frame. The Selection readout shows the length of the trimmed clip.
Choose export options
Tick Remove audio to export a silent clip, or leave it off to keep the original sound. Where it applies, pick a Quality preset — High, Medium or Low — to balance clarity against file size.
Export and download
Click Trim & Export. A progress bar tracks the job, and you can cancel at any time. When it finishes, the result shows the file name, size and length — click Download to save it.
Features
Local, No-Upload Workflow
Open a video by drag-and-drop or the file picker. The file is read through a local browser link, so it is never uploaded — trimming starts instantly with no waiting.
Wide Format Support
Trim any format your browser can decode, commonly MP4, WebM, MOV, MKV and AVI — opened straight from your device.
Filmstrip Timeline
A strip of thumbnails spans the whole clip so you can see what is where at a glance, with two draggable handles and dimmed regions outside the selection.
Precise Selection Controls
Set your in and out points your way: drag the handles, type exact times into the Start and End boxes, or snap them to the playhead with the set buttons or the I and O keys.
Frame-Accurate Preview
Play your selection on a loop, scrub by dragging the timeline, and step one frame at a time with the comma and period keys to land the cut exactly.
Audio & Quality Options
Keep the original audio or export silent with Remove audio, and pick a High, Medium or Low quality preset to balance clarity against file size.
Export to MP4 or WebM
Export covers only your selected range, producing MP4 where the browser supports it and WebM otherwise, with a live progress bar and a cancel button.
Lossless Trim on Safari & iOS
On Safari and iOS, export switches to a lossless stream-copy engine that keeps the source quality and outputs MP4, so you can trim and save right on your phone.
Keyboard Friendly
Space to play or pause, arrow keys to seek (hold Shift for 5 seconds), comma and period to step frames, and I / O to set the start and end.
One-Click Download
When the trim finishes, the result panel shows the name, size and length of your clip — save it to your device with a single click.
Frequently Asked Questions
How do I trim a video online?
Drag a video onto the upload area or click to browse, set the start and end with the timeline handles or the time boxes, preview the cut, then click Trim & Export and download the result. There is nothing to install or sign up for.
Is my video uploaded anywhere?
No. The video is opened from a local link on your device and processed entirely in your browser. It is never sent to a server, and nothing is stored after you close the page. On Safari and iOS, only a small export engine is fetched from a public CDN the first time you export — your video file still stays on your device.
What video formats can I trim?
Any format your browser can decode, which commonly includes MP4, WebM, MOV, MKV and AVI. If a file cannot be opened, your browser does not support that format and you will see a message saying so.
What format is the exported file?
The tool exports MP4 when your browser supports recording MP4 (Chrome and Edge) and falls back to WebM otherwise (Firefox). On Safari and iOS it exports MP4 with a lossless engine. The badge near the export options shows which format you will get.
Does trimming reduce video quality?
On Chrome, Edge and Firefox the selected range is re-encoded, and you choose a High, Medium or Low quality preset to control the output. On Safari and iOS the trim is a lossless stream copy, so the clip keeps the original quality and codec.
Can I remove the sound from my clip?
Yes. Tick Remove audio before exporting to produce a silent clip, or leave it off to keep the original audio. The preview mute button only changes what you hear while previewing — it does not affect the exported audio.
Is the cut frame-accurate?
You can position the start and end down to a fraction of a second using the time boxes and the frame-step keys (, and .). The output starts and ends close to the points you set rather than being limited to keyframes.
Does it work on my phone?
Yes. Loading, previewing and setting the trim range work on mobile browsers, and the handles are sized for touch. Exporting works on Android Chrome, and on iOS it uses a lossless engine — note that very large videos may not fit in memory on some phones.
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