Video Trimmer
Trim video clips precisely by time, with optional cropping. All processing happens locally in your browser; files never leave your device.
$Drag in a video file, or click to select
Video is processed only in your browser memory
Video is read into browser memory — nothing is uploaded
Time range, crop area, format and quality
FFmpeg WASM transcodes and exports locally
Free Online Video Trimmer
Local · No uploadsTrim a video online without uploading it. Set exact start and end points, crop the frame, adjust the output resolution, and export MP4 — no account, no watermark, and no upload. It’s useful for removing intros and outros, cutting highlights for social media, and reframing a recording for vertical or square layouts.
Quick Answers
- Cut points are precise to the second, the frame area can be cropped by dragging a selection box on the video, and output defaults to MP4 (H.264) — playable on virtually every device and platform.
- The default CRF 23 is visually close to the source: lower CRF means better quality and larger files; higher CRF means smaller files with slightly lower quality.
- A stream-copy cut (-c copy) can only start on keyframes, which may be several seconds off; frame-accurate trimming requires re-encoding.
- Crop dimensions are automatically rounded to even numbers (H.264 with yuv420p needs 2×2 pixel alignment). Everything runs in your browser — files are never uploaded.
How to Trim a Video
- 1
Upload your video file — drag and drop works
- 2
Set the start and end times using the timeline or exact second values
- 3
Optionally enable frame cropping to change the aspect ratio or output resolution
- 4
Click Process, then download the trimmed video
Common Uses for Video Trimming
- Remove intros, outros, ads, and dead air from screen recordings
- Cut highlights for TikTok, YouTube Shorts, and Instagram Reels
- Crop the frame to remove unwanted edges or reframe a horizontal shot
- Trim a long recording down to the one moment you need before sharing it
Things to Keep in Mind
- This page cuts one time range per pass; to split a video into several clips, process the next range after downloading the first one
- Trim ranges beyond the video length are automatically clamped to the end
- Output defaults to MP4 (H.264) for maximum compatibility; a few players may not support other formats
- There is no arbitrary upload-size limit, but very large files are still limited by your browser’s available memory
How to Choose a Video Trimmer
- vs. desktop FFmpeg: no command line, no installation — open your browser and go
- vs. upload-based online tools: your file never leaves your device and the export has no watermark
- vs. full editors like CapCut or Premiere: no project setup or import — faster for removing an intro or cutting out one section
How Video Trimming Works
- Trimming happens in two steps: locate the segment by start/end time, then re-encode that range. Re-encoding is what makes any cut point exact — a "stream copy" cut can only land on keyframes, which can be several seconds off.
- The default CRF 23 is visually close to the source; the quality cost of frame-accurate cuts is hard to notice on typical footage. For maximum fidelity, lower the CRF in the quality settings.
- Frame cropping maps to FFmpeg's crop filter, which requires even width and height — H.264 with yuv420p needs pixels aligned on a 2×2 grid, so this tool automatically rounds crop dimensions to even numbers.
Video Trimming FAQ
Can I trim a video without uploading it?
Yes. FFmpeg WASM processes the file in your browser, so the video stays on your device. Close or refresh the page and your session is gone.
Will the trimmed video have a watermark?
No. The tool doesn’t add a watermark or require an account to export the MP4.
Does trimming reduce video quality?
By default it uses CRF 23 encoding, which is visually close to the original. You can adjust the quality setting — lower values mean better quality and larger files; higher values mean smaller files with slightly lower quality.
Which video formats are supported?
Input supports MP4, MOV, MKV, WebM, AVI, and other common formats. Output defaults to MP4 (H.264), the most widely compatible option.
How precisely can I set the cut points?
Down to the second. Drag the timeline for a rough cut, then type exact timestamps to fine-tune.
Can I trim a large video online?
Yes, and there’s no fixed upload-size limit because nothing is uploaded. Browser memory still sets the practical ceiling, so a 4K recording will take longer than a short 1080p clip.
Do I need to download or install anything?
No. Trimming happens entirely in your browser — nothing to install, nothing to sign up for.
What's the difference between trimming and editing a video?
Video editing usually refers to the full workflow — cutting, splicing, captions, effects — in dedicated software. This page focuses on trimming: cutting out a segment by time range or frame area. It's faster and easier than a full editor, and it's all you need for quick cuts.