Resize Video
Scale video dimensions to 16:9 for YouTube, 9:16 for TikTok/Reels, or 1:1 for Instagram feeds with padding and cropping options.
How to Use Resize Video
Load or Input Data
Select your input files or enter your data into Resize Video. Everything stays strictly on your local device.
Configure Settings
Customize output options, preview adjustments, and tune parameters to suit your exact needs.
Execute Client-Side Engine
The operation runs 100% inside your browser memory without transmitting bytes to external servers.
Save or Copy Result
Download your finalized file or copy the result to your clipboard with no waitlists or limits.
Why use ToolGenie for Resize Video?
Unlike traditional utility websites that upload your personal records, photos, and code snippets to remote cloud infrastructure, ToolGenie processes Resize Video directly inside your browser tab using WebAssembly and hardware acceleration.
Frequently Asked Questions
Can I convert landscape video to portrait (9:16)?▼
Yes, with smart center crop or contain fit modes.
Will resizing retain the original framerate?▼
Yes, video timestamps and framerates are maintained throughout the pipeline.
Can I select custom pixel dimensions?▼
Yes, enter custom width and height or lock the original aspect ratio.
Does this require GPU acceleration?▼
It utilizes native hardware WebCodecs for high-speed hardware-accelerated video scaling.
Are files uploaded to a remote server?▼
No, all transformation takes place entirely on your device.
More Video Tools
Explore other client-side utilities in this collection.
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Compress Video
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Video to GIF
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Extract Audio
Strip and save the sound track from any video file as MP3 or WAV.