Resize Video for
TikTok, Instagram & YouTube
Change video aspect ratios instantly for any platform. Crop, fill, or add blurred backgrounds flawlessly in your browser.
Upload Video to Resize
Select a single file
Max size: 100MB
How to Resize Video in 3 Steps
Optimize your content for any platform in seconds.
Upload Video
Select the video file you want to resize from your device or cloud storage.
Choose Platform
Pick TikTok, Instagram, or YouTube to automatically apply the correct ratio.
Download Result
Download your perfectly sized video ready for instant social media posting.
Pro-Level Resizing Features
Social Media Presets
TikTok, Instagram Reels, YouTube Shorts, and Facebook ratios ready in one click.
Smart Backgrounds
Add blurred backgrounds or solid colors to fill empty space elegantly without stretching.
Zero Quality Loss
Maintain high-bitrate visual fidelity across all export sessions seamlessly.
Fast & Secure
Processed locally in your browser to protect privacy and speed up exports.
Reposition & Zoom
Control exactly how your video fits inside the new aspect ratio frame.
No Installation
Free online tool works on OS X, Windows, and Linux without required software.
When to Resize Your Videos?
Repurpose your content across the entire social media ecosystem with precision.
YouTube to TikTok/Reels
Turn widescreen YouTube clips into vertical 9:16 videos for short-form platforms.
Vertical to Square Feed
Resize mobile recordings into 1:1 square videos for clean Instagram feed posts.
Ads for Any Platform
Meet specific ad specifications for Facebook, Pinterest, or LinkedIn effortlessly.
Avoid Black Bars
Use smart cropping or blurred backgrounds to remove ugly black letterboxing.
Why Aspect Ratio Matters for Social Media
Every social platform has optimized dimensions designed to deliver the best user experience. TikTok, Instagram Reels, and YouTube Shorts are built for vertical mobile screens (9:16). Posting an unresized widescreen video results in tiny playback with large black bars, reducing engagement and reach.
Resize vs. Crop: The Difference
Resizing changes the frame dimensions (the container your video lives in). Cropping physically cuts off parts of the video to fit a new shape. Our tool allows you to "Fit" (resize without cutting, adding backgrounds) or "Fill" (crop to fit the center).
Platform Standards
- • Vertical: 9:16 (1080x1920)
- • Widescreen: 16:9 (1920x1080)
- • Square: 1:1 (1080x1080)
Pro Tip
Use "Fill" mode for high-action videos to keep focus on the subject, or use "Fit" + "Blurry Background" for cinemantic reposts.
Frequently Asked Questions
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Resize Your Video for Any Platform Instantly
Get TikTok, Instagram, and YouTube ready in seconds with no download required.