Thumbnail Maker
Make YouTube/social thumbnails at exact sizes.
100% Client-Side · In-Memory Only
Interactive Tool Workspace
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How to Use Thumbnail Maker
- Upload an image to serve as your background canvas.
- Select a platform preset: YouTube (1280×720), Reels/Shorts (1080×1920), Instagram (1080×1080), or Twitter Header (1500×500).
- Choose your image fit mode: Cover (fill and crop) or Contain (fit whole image).
- Pick a background color and download your high-resolution thumbnail PNG.
Features & Guarantees
- Accurate pixel dimensions for all major social media platforms.
- Smart cover/contain centering calculation.
- Export crisp 24-bit PNG files.
Frequently Asked Questions
What is the recommended size for YouTube thumbnails?
YouTube recommends 1280×720 pixels with a minimum width of 640 pixels and 16:9 aspect ratio.