Video Pack Resizer
Turn one video into a full platform pack — 9:16 for TikTok, Reels and Shorts, 1:1 and 4:5 for feeds, 16:9 for YouTube — entirely in your browser. Your file is never uploaded; all resizing happens on your own device. The first run loads the video engine (about 32 MB, from this site). Keep videos under ~200 MB.
See where TikTok and Reels place their buttons, username and caption text, so nothing important in your frame gets covered. Preview ratio:
Working with a still image instead? Try the Safe-Zone Preview for thumbnails and photos.
Every size exports at the full platform resolution (1080-wide or 1920-wide) — if your source is smaller, it is scaled up to fit, exactly like CapCut and other editors do.
0% = keep the left edge · 100% = keep the right edge
0% = keep the top · 100% = keep the bottom
Video Pack Resizer — FAQ
Is my video uploaded anywhere?
No. The resizing engine runs entirely in your browser tab, on your own device. Your file never leaves your computer or phone, and there is no server queue — closing the tab erases everything.
What resolution do the exports come out at?
Exactly the size each platform expects: 1080×1920 for 9:16, 1080×1080 for 1:1, 1080×1350 for 4:5 and 1920×1080 for 16:9. If your source is smaller it is scaled up to fit, the same way CapCut and other editors handle it.
Crop to fill or blurred background — which should I choose?
Crop to fill looks cleanest when the subject stays near the part of the frame you're keeping — use the position sliders and the safe-zone preview to check. Blurred background is safer when the action spans the whole frame (sports, group shots, screen recordings), because nothing is cut off. Need pixel dimensions for a different aspect ratio? The Aspect Ratio Converter works them out for you.
More free tools: Aspect Ratio Converter · Safe-Zone Preview · Video Compressor · Video Speed & Reverse · Video Toolkit · All tools