Crop Video Online
Free online video cropper. Crop any video or image to a specific region — remove black bars, change aspect ratio for TikTok / Instagram / YouTube, focus on a subject, or trim a section out. Runs in your browser via FFmpeg WebAssembly. No upload, no watermark, no sign-up.
Drop files here or click to browse
Max 10240.0 MB per file · drop multiple for batch
or press Ctrl+V to paste
100% private — files never leave your device
·Free — no sign up, no watermark
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How to Use Crop Video Online
- Drop your video onto the cropper (MP4, MOV, MKV, WebM, AVI all work)
- Set Width and Height — the dimensions of the region you want to keep
- Set X Offset and Y Offset — where the crop region starts (0,0 = top-left of the video)
- Preview to confirm, then click Process and download the cropped video
Features
- Crop video to any custom width × height with pixel-precise X and Y offsets
- Remove black bars (letterbox / pillarbox) from any video in one pass
- Reframe for TikTok / Instagram / YouTube by cropping to the right aspect ratio first, then resize
- Live preview before processing — see exactly which region you're keeping
- Browser-native via FFmpeg WebAssembly — your video never uploads to a server
- Output as MP4, MOV, MKV, or WebM with audio preserved; also crops images (JPG, PNG, WebP)
- Free with no watermark, no sign-up, no file size cap below your plan limit
Frequently Asked Questions
- How do I crop a video online?
- Upload the video, set Width × Height for the region you want to keep, set X / Y Offset for where the region starts, click Process. The video cropper runs in your browser via FFmpeg WebAssembly and finishes in seconds for short clips, minutes for long ones.
- How is this video cropper different from Clideo or Online-Convert?
- Speed and privacy. Clideo / Online-Convert upload your video to their server, queue it, re-encode, and send it back — slow on long videos and your file briefly lives on their disk. This cropper runs locally in your browser; nothing leaves your device and there's no queue. Free with no watermark or sign-up cap.
- How do I remove black bars from a video?
- Measure the visible content area (you can use the preview to eyeball it), then set Width × Height to the content size and X / Y Offset to skip the bars. Example: a 1920×1080 video with letterbox bars has content at 1920×800 starting at Y=140 — those four numbers crop the bars out cleanly.
- How do I crop a video to square for Instagram?
- For a 1920×1080 source, set Width=1080, Height=1080, X=420, Y=0 to extract a 1080×1080 square from the center. For TikTok / Reels vertical (9:16), use Width=1080, Height=1920 on a tall enough source (or pair with our video resizer after cropping).
- Does the cropper preserve audio?
- Yes — the audio track passes through unchanged. Only the video stream is re-encoded to the new dimensions.
- Can I crop an image instead of a video?
- Yes — drop a JPG, PNG, or WebP onto the same cropper and it'll crop the image with identical pixel-precise control. Output is a clean PNG or your chosen image format.
- What happens if I set the crop area larger than the video?
- FFmpeg clamps it: anything beyond the video boundary gets ignored, and you end up with the largest valid sub-region. To avoid this, keep Width + X Offset within the source width, and Height + Y Offset within the source height.