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ThumbGlance icon

ThumbGlance

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ThumbGlance is a free tool for YouTube creators to preview one thumbnail and an optional title in six illustrative layouts. Its resizer accepts JPG, PNG and WebP, supports exact dimensions, Fit padding and centered Fill cropping, and exports JPG with adjustable quality or PNG...

Thumbnail resizer with exact dimensions, Fit/Fill placement, adjustable JPG quality and actual output bytes.

Cost / License

  • Free
  • Open Source (MIT)

Since

  • New

Updated

  • Updated Sep 2026

Platforms

  • Online
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ThumbGlance was added to AlternativeTo by Austin Lo on and this page was last updated .

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What is ThumbGlance?

ThumbGlance is a free tool for YouTube creators to preview one thumbnail and an optional title in six illustrative layouts. Its resizer accepts JPG, PNG and WebP, supports exact dimensions, Fit padding and centered Fill cropping, and exports JPG with adjustable quality or PNG with lossless encoding. The actual encoded file size is displayed before downloading. Images are processed locally in the browser without uploads, accounts or saved history. The source code is published under the MIT license. Layouts are illustrative; the tool does not predict click-through rate or automatically judge readability.