Resize video online for social platforms.
Scale video to 4K, 1080p, 720p, 480p, or 360p for TikTok, Instagram Reels, YouTube Shorts, and YouTube while maintaining aspect ratio.
Your file stays in this browser tab.
Scale to 4K, 1080p, 720p, 480p, or 360p.
Exports a clean file without a watermark.
Need automated resolution management?
This tool resizes one file at a time. Cutsio helps teams search, organize, review, and prepare media across their video library.
Common questions.
How do I resize a video for TikTok, Instagram Reels, or YouTube?
Choose the resolution that matches your destination, then export the resized MP4. For vertical platforms, use the video reframe tool to change the aspect ratio before resizing.
Is my video uploaded anywhere?
No. The resize runs entirely in your browser tab. Your file never touches a server.
Does it maintain aspect ratio?
Yes. The video is scaled to fit the target resolution while preserving the original aspect ratio. Letterboxing may be added if the aspect ratio differs.
What resolution should I pick?
1080p is standard for social media. 720p is good for web playback. 480p and 360p are best for smaller file sizes or low-bandwidth sharing.
What formats are supported?
MP4, MOV, WebM, MKV, and most common video formats. The output is always MP4 with H.264 video and AAC audio.