How do I use the Image Aspect Ratio Converter?

Upload an image from your device so the browser can measure its native dimensions and current aspect ratio. Choose a target ratio such as 1:1, 4:3, 16:9, 3:2, 9:16, 2:3, or enter a custom width and height ratio. Switch between crop mode to trim the edges or pad mode to preserve the full image and add solid color borders. Use the overlay preview to see what stays in crop mode, then review the converted canvas preview and output dimensions. Pick PNG or JPEG, then download the converted image directly from the browser without uploading it to a server.

Is the Image Aspect Ratio Converter free?

Yes, the Image Aspect Ratio Converter is completely free. It runs entirely in your browser with no signup, no download, and no data sent to any server.

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converter

Image Aspect Ratio Converter

Upload an image, preview crop or pad conversions for common aspect ratios, and download the result as PNG or JPEG.

image ratio converterchange image ratiocrop aspect ratio

Crop or pad to a new ratio

Convert image aspect ratios in the browser

Upload an image, compare its current aspect ratio with a target preset, preview the crop overlay, and download the converted result as PNG or JPEG.

Upload image

Current ratio

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Output size

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Target ratio Download format

Mode

Padding color

Upload an image to begin. Crop mode trims edges; pad mode adds solid borders.

Source preview

Target 1:1

Your uploaded image will appear here with an overlay preview.

The crop overlay will show the part of the image that stays in the final result.

Converted preview

Canvas output

How to use

How to convert an uploaded image to a new aspect ratio with crop or pad mode

1 Upload an image from your device so the browser can measure its native dimensions and current aspect ratio.
2 Choose a target ratio such as 1:1, 4:3, 16:9, 3:2, 9:16, 2:3, or enter a custom width and height ratio.
3 Switch between crop mode to trim the edges or pad mode to preserve the full image and add solid color borders.
4 Use the overlay preview to see what stays in crop mode, then review the converted canvas preview and output dimensions.
5 Pick PNG or JPEG, then download the converted image directly from the browser without uploading it to a server.

Aspect ratio conversion is useful for social media posts, product images, thumbnails, print layouts, and any workflow where one source image must fit several destination formats. Crop mode is helpful when you want a clean full-frame result, while pad mode is better when every part of the original image must remain visible.

Doing the conversion in the browser keeps the workflow fast and private for everyday edits. Because you can compare the overlay and output canvas immediately, the tool is also useful when you need to experiment with multiple ratios before deciding which composition looks best.

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