Resize Video
Resizing videos is essential for social media content creation. Each platform has specific dimension requirements - Instagram posts use 1:1 (1080x1080), TikTok and Reels use 9:16 (1080x1920), while YouTube prefers 16:9 (1920x1080). Our free online video resizer offers quick presets for these popular formats, plus the flexibility to enter any custom dimensions you need. With support for MP4, MOV, and AVI formats, you can resize any video directly in your browser without installing software.
Why Resize Video?
Professional video editing software can be expensive and complex for simple resizing tasks. Our online video resizer provides one-click presets for Instagram, TikTok, and YouTube, plus custom dimension inputs for any other need. Perfect for content creators publishing to multiple platforms, social media managers repurposing content, marketers optimizing video ads, and anyone needing specific video dimensions. The tool works entirely online, ensuring fast processing and protecting your privacy.
Features That Make a Difference
Social Media Presets
One-click presets for Instagram (1:1 - 1080x1080), TikTok/Reels (9:16 - 1080x1920), and YouTube (16:9 - 1920x1080). Instant platform optimization.
Custom Dimensions
Enter any width and height up to 4K (3840x2160). Perfect for specific requirements, video ads, or unique aspect ratios.
Aspect Ratio Control
Choose to maintain aspect ratio (fit video without distortion) or force exact dimensions. Full control over how your video is resized.
Auto-Calculate Option
Enter just width or just height, and we'll automatically calculate the other dimension to maintain aspect ratio.
Universal Format Support
Upload MP4, MOV, or AVI videos. Output is always in MP4 format for maximum compatibility across all platforms.
Quality Preservation
Advanced scaling algorithm maintains video quality when resizing. Your videos look sharp at any dimension.
Fast Processing
Efficient encoding ensures quick processing. Most videos are resized in just a few minutes regardless of dimensions.
Why Choose Our Tool?
Unlike complex video editors or paid services, our tool combines convenience with flexibility. Quick presets for Instagram, TikTok, and YouTube eliminate guesswork, while custom dimension inputs handle any other requirement. No subscriptions, no watermarks, no hidden fees. Our privacy-first approach means your videos are processed securely and deleted automatically. Whether you're a professional content creator managing multiple platforms or someone needing specific dimensions, our tool provides the perfect balance of speed and control.
Common Use Cases
Instagram Content
Use 1:1 preset (1080x1080) for Instagram posts. Perfect square format for feed posts that look great on all devices.
TikTok & Reels
Use 9:16 preset (1080x1920) for vertical videos. Optimized for TikTok, Instagram Reels, YouTube Shorts, and Stories.
YouTube Videos
Use 16:9 preset (1920x1080) for widescreen content. Standard YouTube format that works perfectly for desktop and mobile viewing.
Video Ads
Enter custom dimensions to match ad platform specifications. Facebook, Google Ads, LinkedIn ads all have specific size requirements.
Multi-Platform Publishing
Quickly create versions of the same video for different platforms. Upload once, export to Instagram, TikTok, and YouTube formats.
Optimization Tips
For best results, ensure your video file is under 75MB. Use presets for social media - they're optimized for each platform. For custom dimensions, maintain aspect ratio when you want to fit video without distortion, or disable it when you need exact dimensions (like for presets). When entering one dimension, leave the other empty for auto-calculation. Maximum supported dimensions are 3840x2160 (4K). Always start with higher quality source videos for best results when resizing.
Privacy & Security
Your privacy is our top priority. All video processing happens over secure HTTPS connections with end-to-end encryption. We never access the content of your videos, and all files are automatically deleted from our servers within one hour of processing. No registration or personal information is required to use our service. Your videos remain private and secure throughout the entire process.