Web Image Tools

Focused browser utilities for image web tasks.

Create a small square PNG suitable as a favicon source.

Resize an image to a custom thumbnail size.

Calculate proportional banner dimensions.

Convert a small uploaded image to a browser data URL.

Related guides

Favicons are tiny website icons, so simple shapes and strong contrast work better than fine detail.

Smaller appropriately sized images can reduce page transfer size and improve perceived loading speed.

A thumbnail should match its display aspect ratio closely to avoid unnecessary cropping or stretching.

When processing happens locally in the browser, the tool can perform many operations without uploading the image to a remote server.