Crop · Browser-first processing
Use the calculator without a file or load an image to create a centre-cropped result for common and custom ratios.
Select a supported file or enter the requested values, then run the tool.
This browser tool does not upload the selected source to ImgNimble. Closing or refreshing clears the selected files and generated result from the page.
Common questions
Aspect Ratio Toolkit reads the selected input into browser memory and performs its documented operation on this device. It does not submit the source file to ImgNimble while using this browser-first workspace.
Calculated dimensions and, when an image is selected, a cropped PNG or JPEG.
Aspect ratio describes shape, not resolution or quality. Centre cropping may remove content near the edges.
Aspect Ratio Toolkit validates the selected file before processing. Use JPG, JPEG, PNG, WEBP, GIF, HEIC, HEIF, SVG within the 40 MB per-file limit. Keep an untouched original for comparison.
The Aspect Ratio Toolkit workflow runs in browser memory. ImgNimble does not receive the source file for this local operation; refreshing or closing the page clears the selected input and generated in-page result.
Practical checks
Use the calculator without a file or load an image to create a centre-cropped result for common and custom ratios.
Keep the source, download the Aspect Ratio Toolkit result as a new file, and verify dimensions, transparency, colour, metadata and visual detail before replacing any production asset.