How to use this image tool
- Select the image file.
- Review the available options and limits.
- Run the tool and inspect the output statistics.
- Download the newly generated result.
#217 · Crop Rotate & Transform Tool
Golden Ratio Crop Guide
Preview and apply a centered golden-ratio crop in landscape or portrait orientation, then download the cropped image as PNG or JPEG.
Image Tool
Local browser processing%
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Ad space
What this tool does
This guide finds the largest centered rectangle that matches the golden ratio. The overlay previews what will remain before the crop is exported.
The crop uses φ = 1.6180339887 and fits the largest matching rectangle inside the source image.
The result is calculated from the selected file in this browser session. Large images may use substantial memory.
Supported formats
Uses image formats that the current browser can decode. JPEG, PNG, and WebP have the broadest support. Animated images are read as a single decoded frame.
| Format | Support |
|---|---|
| JPEG / PNG | Broad browser support |
| WebP | Modern browsers |
| GIF | First decoded frame |
Tips for better results
- Keep the original file until you have checked the download.
- Test demanding settings on a smaller copy first.
- Compare the preview at 100% zoom when judging edges or compression.
FAQ
Does Golden Ratio Crop Guide upload my image?
No. Processing happens in your browser. The page does not send the selected image to a server.
Why can an image fail to open?
The browser may not decode that file variant, the file may be damaged, or its pixel dimensions may exceed available memory.
Does the download preserve camera metadata?
No guarantee is made. Canvas-generated images normally omit original EXIF and other application metadata.
Can I use the result for print work?
Yes for planning and ordinary printing, but browser rendering does not provide press-grade ICC color management.
What happens when I press Reset?
The selected files, previews, generated Blob, progress, and temporary object URLs are cleared from the page.
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Processing notes
| Step | Browser action |
|---|---|
| Input | Decode locally |
| Output | Create a new Blob |
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