Thumbnail Resizer
Prepare thumbnails for YouTube, Twitch, and video platforms with exact 16:9 proportions and browser-local export.
100% Client-Side Canvas Processing: Resizing executes directly in your browser without uploading your photos or graphics to any remote server.
Drag and drop an image, or click to browse
Supports PNG, JPG, WebP, SVG, and GIF formats
Select Target Preset
Live Canvas Preview & Export
Target: YouTube Video Thumbnail (1280×720 px • 16:9)
Scaling:
Upload an image above to see the live scaled canvas preview.
Looking specifically for video thumbnail dimensions?Open Thumbnail Resizer →
How It Works
- Runs locally in your browser using standard Web APIs.
Frequently Asked Questions
Are my files uploaded?
No. This tool processes input locally in your browser and creates the result on your device.
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