Resize video for Instagram Reels (9:16), YouTube (16:9), or any custom resolution.
Drop a file or click to choose
MP4 · MOV · WebM supported
🔒 Your file is processed in your browser. It is not uploaded to any server for this tool.
Upload your video
Pick a platform preset (Reels, Shorts, YouTube)
Export at the new size
Instant — No Install
Works directly in your browser. No app download needed.
Private & Secure
Your video never leaves your device for free tools.
No Login Required
Just upload and start editing. No account needed.
No Watermark
Export clean videos without any CutKarlo branding.
Can I resize to 1080p?
Yes ? the social export panel lets you choose resolution up to 1920?080.
Free, no login, runs in your browser. Just upload and start.
No login · No watermark · No upload to server