16:9 to 9:16 Video Resizer & Converter
Repurpose landscape YouTube videos, podcasts, and widescreen footage into vertical 9:16 TikToks and Instagram Reels with dynamic blurred background fills or clean letterboxing.
Drag & drop your horizontal or square video
Convert to vertical 9:16 with dynamic blur in seconds (100% in-browser)
Aspect Ratio Guide for 2026 Ads
Best for TikTok Ads, Instagram Reels, and YouTube Shorts.
Takes up maximum screen real estate in standard Instagram & Facebook feeds.
Standard square video for multi-placement carousels.
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Why Use Smart Blurred Backgrounds for Vertical Repurposing?
When landscape (16:9) video is converted to vertical (9:16), plain black letterboxing leaves dead space that feels outdated and triggers lower watch-through rates. Generating an enlarged, motion-synchronized blurred duplicate behind the main video fills the vertical viewport seamlessly while maintaining viewer focus on your central content.
Frequently Asked Questions
What aspect ratios are supported?
You can convert to 9:16 (TikTok, Reels, Shorts), 1:1 (Square Feed Ads), 4:5 (Instagram Portrait Feed), or 16:9 (Landscape YouTube).
How is the converted video exported?
The resized video is recorded in-browser using WebM/VP9 encoding directly from your graphics hardware and downloaded straight to your computer.
Does this tool watermark my exported videos?
No. All free tools created by Reelic are 100% watermark-free and completely free to use for commercial projects.
Is my video kept private?
Yes. Processing takes place entirely in client memory on your browser without any server communication.