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Image
Image Resizer
Resize an image by exact pixels while preserving its aspect ratio.
How this tool works
The browser reads the source dimensions, calculates the matching height when aspect lock is enabled, draws the image to a bounded canvas, and exports a new file in a supported format.
Tested examples
01
Input1600 × 900 image resized to 800 px wide
Expected resultAn 800 × 450 image when aspect ratio is locked.
02
Input1200 × 1200 image resized to 600 × 400
Expected resultA 600 × 400 result when aspect lock is disabled.