Remove setup and dead time
Cut away the moments before the real action begins and after it ends.
Video Trimmer
Remove unwanted time from the beginning, end or both sides of a video and export one clean clip.
Millisecond inputBoundary previewOriginal remains unchanged
Read the full guide1
Select video
2
Trim video
3
Preview
4
Download
1. Select video
Drop a video here
or click to choose a file
Supported formats: MP4, WebM, MOV, MKV
Maximum file size: 2 GB
Try a sample video:
2. Trim video
Time format: HH:MM:SS.mmm
Selected duration00:00:10.000
Time format: HH:MM:SS.mmm
3. Trim preview
Preview a few seconds around both cut points to avoid clipped speech, abrupt motion or incomplete transitions.Trim preview
Add a video
No videos have been added yet.
Reading video information…
00:00:0000:00:0000:00:0000:00:0000:00:00
00:00:00.000 / 00:00:15.000
4. Process trimmed video
Re-encode around the boundaries for closer timing. This can take longer and may change size or quality.
Files selected from your device stay in this browser while they are processed.
5. Result
Your video is ready.
Your video is ready.
Completed
Download trimmed video
- File name
- -
- Container
- -
- Duration
- -
- File size
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- Resolution
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Files selected from your device stay in this browser while they are processed.
How do I cut the beginning or end of a video?
Set the start time where the clip should begin and the end time where it should stop, preview both boundaries and process the range. Fast mode may snap to keyframes; precise mode can re-encode around the cuts to follow the requested time more closely.
Trimming versus splitting
Trimming exports one continuous range and discards time before and after it. Splitting creates several outputs from one source. Use the trimmer for one final clip; use the splitter when you need multiple chapters, highlights or regular chunks.
When to trim a video
Extract one highlight
Create a standalone clip around a specific answer, reaction, demonstration or event.
Meet a duration requirement
Remove nonessential time before applying compression or platform-specific delivery settings.
Clean screen recordings
Remove the cursor setup, window switching and stopping action from the final tutorial clip.
How to trim a video precisely
Load the source
Confirm duration and playback before moving the trim handles.
Set a rough range
Drag the timeline handles or use a quick preset to get close to the intended start and end.
Fine-tune both boundaries
Type timestamps or nudge by seconds. Inspect speech, gestures, transitions and audio tails at each side.
Choose processing accuracy
Use fast mode for speed when nearby keyframes are acceptable, or precise mode when exact timing is worth re-encoding.
Process, review and save
Open the result, confirm the first and last seconds and audio synchronization, then download before refreshing the page.
Avoid awkward cuts
Leave enough context
Starting exactly on the first spoken syllable can feel abrupt. Include a small natural lead-in when it helps the viewer understand the scene.
Listen beyond the picture
Room tone, music tails and the end of a word can continue after the visible action. Check audio at both boundaries before finalizing.
Keyframes explain timing shifts
Fast trimming can move a boundary to a nearby independently decodable frame. This is expected behavior for compressed inter-frame video, not a change to the source file.
Trim before heavy processing
Removing unused time before subtitles, resizing, conversion or compression reduces the number of frames that later steps must process.
Keep the source until verification
The tool creates a new file. Keep the source until the output opens correctly, starts and ends where expected and has synchronized audio.
Privacy and temporary result
A file chosen from your device is processed in the current browser. A remote URL must be fetched from its host and can be blocked by CORS or missing byte-range support. The trimmed result remains temporary until downloaded.
Trimming limitations
- Fast trimming may not match arbitrary frame times exactly.
- Precise trimming can re-encode video and affect size or quality.
- A direct URL may preview but still fail during export if the host does not allow the required requests.
- Browser memory limits can be lower than the displayed file-size limit.
- The output container can differ when the source container is not supported by the current export pipeline.
Video trimmer questions
Does trimming reduce video quality?
Fast stream-based trimming may preserve encoded data when the source and output are compatible. Precise trimming can re-encode around boundaries, so quality depends on the selected output settings.
Why is the cut a little early or late?
Fast mode can align to a nearby keyframe because compressed inter-frame video cannot always start at an arbitrary frame. Enable precise trimming when exact timing matters.
Can I enter milliseconds?
Yes when the timestamp fields support HH:MM:SS.mmm. Actual output accuracy still depends on frame timing, the selected mode and encoder behavior.
Can I trim a video from a URL?
Yes when the URL points directly to an accessible media file and the host permits browser requests such as CORS and byte ranges. Web-page or login-protected links usually do not work.
Is the original video overwritten?
No. The tool creates a separate trimmed file. Keep the original until the output has been checked and backed up.
Why can I preview but not export?
Preview needs decoding, while export also needs supported cutting, encoding and container writing. A browser may play a source codec that the current pipeline cannot encode or mux.
Can I keep only the middle of a video?
Yes. Set start after the beginning and end before the source finishes. The interval between those points becomes the output clip.
Should I trim before compressing?
Usually yes. Removing unused duration first reduces the amount of video that must be encoded and can make it easier to reach a delivery-size target without sacrificing as much quality.