Thumbnail Maker

Create perfect thumbnails for YouTube, blogs, and social media — fast and free.

Drag & drop an image here, click to browse, or paste from clipboard

Choose Thumbnail Size

Width: Height:

Original

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Thumbnail

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Dimensions

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Format: Quality: 90%

Frequently Asked Questions

What size should a YouTube thumbnail be?

YouTube recommends 1280×720 pixels (16:9 ratio) with a minimum width of 640px. The 1280×720 preset in this tool is perfect for YouTube thumbnails.

What's the best thumbnail size for blog posts?

For blog featured images, 1200×630 pixels works well for most platforms and social sharing. For smaller inline thumbnails, 300×300 or 150×150 are common choices.

Should I use PNG or JPEG for thumbnails?

JPEG is usually better for photo-based thumbnails because it produces smaller files. PNG is better when you need transparency or have graphics with sharp edges and text.

What is the ideal quality setting for JPEG thumbnails?

A quality setting of 80-90% gives the best balance between file size and visual quality. Below 70%, compression artifacts become noticeable. For web use, 85% is a great default.

Can I make circular or rounded thumbnails?

This tool creates square or rectangular thumbnails. To make circular thumbnails, you can use CSS border-radius on your website, or use our Profile Picture Crop tool which supports circular cropping.