Video Thumbnail Resizer
Create perfect video thumbnails for YouTube, Vimeo, and other platforms. AI-optimized dimensions for maximum engagement.
Upload Image
Drag and drop an image here, or click to select
Support JPG, PNG, WebP formats, max 10MB
Size Presets
Example Images
Professional Step Guide
Follow these steps to easily achieve professional-grade image resizing
Upload Thumbnail Image
Upload your thumbnail image or video screenshot. Works with any image format and automatically optimizes for video platform requirements. Perfect for content creators, marketers, and businesses looking to improve their video engagement rates. The tool handles both landscape and portrait orientations.
Choose Video Platform
Select the video platform you're targeting - YouTube (1280x720), Vimeo, TikTok, Instagram Reels, or custom sizes. Each preset is optimized for the platform's specific requirements and best practices. The dimensions are designed to look great on both desktop and mobile devices.
Thumbnail Optimization
AI optimizes your thumbnail for maximum visual impact and engagement. Enhances clarity, adjusts composition, and ensures the image will stand out in video feeds. The optimization process considers both technical requirements and engagement best practices.
Download Engaging Thumbnail
Download your optimized thumbnail ready for upload. The image is sized perfectly for your chosen platform and optimized for high click-through rates. Ready to use immediately with no additional editing required.
Frequently Asked Questions
Common questions about image resizing
What's the ideal size for YouTube thumbnails?
YouTube recommends 1280x720 pixels (16:9 aspect ratio) with a minimum width of 640 pixels for optimal display.
Can I create thumbnails for multiple platforms at once?
You can resize the same image for different platforms by selecting different presets for each platform.
Will my thumbnails look good on mobile devices?
Yes, our optimization ensures thumbnails look great on both desktop and mobile viewing experiences.
What file format should I use for thumbnails?
We output high-quality JPG format which is supported by all major video platforms and provides optimal file size.
Four Simple Steps to Smart Image Resizing
Use our AI image resize tool to quickly adjust images to any desired dimensions while maintaining optimal quality
Upload Image
Select or drag an image file to the upload area. Supports JPG, PNG, WebP formats up to 10MB. You can also paste from clipboard or choose from example images.
Choose Size
Select from preset social media, web, and print sizes, or set custom width and height. Option to maintain original aspect ratio is available.
AI Processing
Our AI smart resize algorithm optimizes image quality for the target dimensions, ensuring the best visual quality and clarity while resizing.
Download Result
Preview the resized image and download the high-quality result with one click. Supports PNG format for optimal quality preservation.
Start Using Now
No registration required, free to use. Supports multiple size presets and custom dimensions for various use cases.
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Unleash your marketing potential with AI-powered tools designed to create impactful videos for your business.
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What our clients are sharing.
Discover the glowing feedback from our delighted customers worldwide.

Sarah Green
Portrait Photographer
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John Doe
CEO
What impresses me most about Converters.pro is how it maintains brand consistency across all generated videos while still keeping the content fresh and engaging.
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