Video Resizer
Format videos for TikTok, Reels, and Instagram.
Select Video to Begin
Drag & drop your file here, or click to browse. Processing is performed 100% locally on your computer with complete privacy.
Launch Video ResizerHow It Works
Upload Video
Choose your media file.
Choose Target Aspect Ratio
Select 9:16 (Vertical), 1:1 (Square), 4:5, or 16:9.
Fit or Crop
Select crop mode, letterbox padding, or smart background blur.
Download Resized Video
Export platform-ready media for TikTok, Reels, and Shorts.
Key Features & Benefits
Vertical Video Conversion
Convert landscape footage into viral vertical reels.
Blur Background Effect
Fill letterbox bars with aesthetic blurred video reflections.
High Resolution Output
Maintains sharp 1080x1920 HD and 4K output fidelity.
Instant Browser Processing
Fast exports without cloud rendering queues.
Frequently Asked Questions
What happens to the empty space?
When converting a landscape video to vertical, we pad the empty space at the top and bottom with solid black bars. This is the fastest way to reformat while maintaining the original video's full picture.
What resolutions are output?
To ensure maximum compatibility with social media platforms, we scale the output to standard high-definition widths (1080p). For example, 9:16 is output as 1080x1920.
Are my files uploaded to a server?
No, all processing happens locally on your device. Your videos never leave your browser, ensuring complete privacy.
Does it impact video quality?
We use a fast preset with x264 encoding to maintain strong video quality while optimizing processing speed within your browser.
Is the Video Resizer free?
Yes! You can reformat and resize your videos for free without any watermarks or hidden fees.