Guides5 min read
How to Crop a Video Without Losing Quality
Crop a video to remove black bars or change its shape. Why cropping always re-encodes, how to keep quality high, and a no-re-encode trick.
Crop video
Crop a video to any region or aspect ratio — free, instant, and private. Nothing leaves your device.
Drop a video here, or click to browse
MP4, MOV, WebM, MKV, or AVI — up to 2GB
Everything you need to crop video fast
Drag-to-crop directly on the video
Resize and reposition the crop box right on the video preview frame, with the same interaction as PixelTools' image cropper.
Aspect ratio presets
Snap to 1:1, 16:9, 9:16, 4:3, or 3:4 for social platforms, or leave it free-form for any custom shape.
Works with your existing format
Drop in MP4, MOV, WebM, MKV, or AVI — no need to convert first. The cropped result is saved as a widely-compatible MP4.
Instant download, no waiting on uploads
Because there's no upload step, cropping starts the moment you press the button — no queue, no server-side processing time.
Private by design
Your video never leaves your device. PixelTools runs entirely in your browser using ffmpeg.wasm — zero server uploads, zero data stored.
Three steps to a perfectly framed clip
- 1
Upload your video
Drag and drop a video onto the page, or click to browse. Supports MP4, MOV, WebM, MKV, and AVI files up to 2GB.
- 2
Drag the crop box, or pick an aspect ratio
Resize and reposition the crop box directly on the video preview, or snap to a common ratio like 16:9, 9:16, or 1:1 for social media.
- 3
Download your cropped video
Your video is cropped instantly in your browser. Download the result as MP4. Nothing is uploaded to any server — your file stays on your device.
Built for anyone who works with video
Whether you are reframing a clip for TikTok, cutting out a watermark, or zooming in on the part of the shot that matters — PixelTools crops it in your browser in seconds.
Reframing for vertical platforms
Crop a landscape recording down to 9:16 to fit TikTok, Reels, or Stories without black bars.
Removing unwanted edges
Cut out a webcam overlay, a watermark, or a sliver of black bar along the edge of a screen recording.
Focusing the frame
Zoom in on the part of the shot that matters — a speaker, a product, a section of a screen — by cropping away the rest.
Matching a platform's exact ratio
Use the 1:1, 16:9, or 4:3 presets to prep a clip for a specific feed or embed without guessing pixel dimensions.
Frequently asked questions
Is PixelTools video cropper free?
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Yes, completely free with no limits. Crop as many videos as you want, as often as you want. No subscription, no trial, no account required.
Are my videos uploaded to a server?
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No. PixelTools crops videos entirely in your browser using ffmpeg.wasm. Your files never leave your device — there is no server upload, no cloud processing, and no data stored anywhere.
What video formats can I crop?
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PixelTools accepts MP4, MOV, WebM, MKV, and AVI as input. The cropped output is always saved as MP4 for the widest compatibility across phones, editors, and platforms.
Can I crop a landscape video to vertical (9:16) for TikTok or Reels?
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Yes. Pick the 9:16 aspect ratio preset, then drag the crop box to frame the part of the video you want to keep — the rest is cut away in the output.
Does cropping change my video's resolution?
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The output resolution matches whatever area you select with the crop box — cropping a smaller region produces a smaller-resolution video, since the parts outside the box are removed rather than scaled.
Can I crop video online up to 2GB?
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Yes — PixelTools crops video online, entirely in your browser, for files up to 2GB. There's no upload size limit imposed by a server because there is no server: everything runs locally. Because every frame is re-encoded at the new crop dimensions, processing time on a 2GB file depends on the source video's length and resolution as well as your device's performance.
Can I crop with a free-form (non-locked) aspect ratio?
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Yes. Choose "Free" to drag the crop box to any width and height, independent of a fixed ratio.
How is this different from other online video croppers?
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Most online video croppers upload your file to a server for processing, which is slow for large files and means your video leaves your device. PixelTools crops everything locally in your browser with no upload and no usage limits.
From the blog
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Crop your video now
Free, instant, no account needed.