Resize a video with one-click presets — ½ or ¾ of the source, or 1080p / 720p / 480p — or type exact width × height. Aspect-ratio mismatches are letterboxed cleanly. Everything runs locally in your browser using WebCodecs — your file is never uploaded to a server, so it stays private and conversion starts instantly. Need more than one operation? Use the "Continue this clip in" links in the workspace — your edits carry over to crop, trim, resize and compress without re-uploading the file.
How to resize video
- Drop a video onto the box above, or paste a video URL.
- Pick a size preset or type exact width and height.
- Lock or unlock the aspect ratio with the lock toggle.
- Click Export to download the resized video. To crop, trim or compress further, use "Continue this clip in" below — your size carries over.
Frequently asked questions
- Will resizing keep the aspect ratio?
- You can lock the aspect ratio or set width and height independently — mismatched ratios are letterboxed cleanly.
- Can I resize for Instagram or TikTok?
- Unlock the aspect ratio toggle, then type the target width × height (e.g. 1080 × 1080 for square or 1080 × 1920 for vertical). Source content that doesn't match the new aspect is letterboxed.
- Is the video uploaded?
- No. Everything runs locally in your browser using WebCodecs — your file is never uploaded to a server, so it stays private and conversion starts instantly.