A single photo often has to appear as a square social post, a portrait cover, a wide article header, and a product thumbnail. Re-cropping it for every destination takes time and usually produces inconsistent framing.
One Image, Multiple Ratios puts those crops in one workspace: upload one source image, select the formats you need, adjust each frame separately, and export the set. It does not generate new content or add borders. It selects different regions from the original image.
What it solves
- Repeated cropping: no need to open an editor for every destination and import, crop, and export the same photo again.
- Inconsistent framing: each ratio keeps its own position and zoom, so switching frames does not carry adjustments from one crop to another.
- Re-uploading originals: images are read and processed in the current browser, not uploaded to a server.
- Unclear output size: crops export as PNG at the original pixel density of the selected region, without extra upscaling or downscaling.
- Downloading files one by one: select several ratios and export the complete set as a ZIP.
One limitation matters: the tool reads one source image at a time, but can export several ratios from that image. It is not a batch cropper for multiple different photos.
When to use it
Preparing covers for several platforms
The same story may need 1:1, 3:4, 4:5, 9:16, and 16:9 versions. Choose the required frames first, then adjust the subject in each one. This is easier to keep consistent than cropping separately for every platform.
Product listings and detail pages
A marketplace listing often uses a square image, while a detail page or recommendation slot may need portrait or landscape art. Leave some room around the product when shooting, then reframe each version so the item does not feel too tight in one place and too distant in another.
Article headers, inline images, and thumbnails
A single article may need a wide header, a square thumbnail, and a portrait sharing image. Deriving all of them from one source makes it easier to control where the title and subject sit.
Desktop and phone wallpapers
Landscape suits a desktop; portrait suits a phone. Select 16:9 and 9:16, then adjust each composition so the important part of the artwork survives on both screens.
Design delivery and asset archives
When one key visual has to be delivered in several sizes, export the whole set of PNGs at once. File names include the ratio, such as photo_1x1.png and photo_9x16.png, which keeps the delivery easy to organize.
Step by step
- Open One Image, Multiple Ratios and choose or drop one JPG, PNG, WebP, or AVIF image.
- Select the ratios you need on the right. The defaults are 1:1, 3:4, and 9:16; you can select all or keep only a few.
- Click any preview on the left to make it the active frame. Drag the image, use the arrow keys, or adjust the horizontal and vertical position sliders. The zoom slider changes how much of the source image is kept.
- If you need the opposite orientation, use Swap orientation to exchange the frame width and height. If the target ratio is already selected, the frames merge and the existing target composition is kept.
- Check each preview. If a composition drifts, use Reset to center and start again.
- Download the current PNG, or choose Export ZIP to save every selected ratio in one archive.
Each ratio keeps its own position and zoom. Replacing the source image resets all frames to center, so review them again.
Framing tips
- Start with the tightest ratio. Check 9:16 or 2.35:1 first, make sure the subject fits, then move on to looser frames.
- Leave a safety margin. Keep important content away from the edges when shooting or choosing the source, so there is room to reframe later.
- Zoom is not upscaling. The zoom slider changes how much of the source is retained. Exports do not enlarge a smaller region.
- Do not expect automatic padding. The tool crops to fill the frame and does not add borders. If the whole image must remain visible, choose a ratio closer to the source.
- Check the destination preview. Ratio names describe common uses; each platform may still crop or overlay other elements.
Output, privacy, and limits
- Output is lossless PNG at the original pixel size of the crop. Multiple ratios are packed into a ZIP.
- Decoding, previews, cropping, and ZIP creation all run in the current browser. Images are not uploaded to a server.
- One source image at a time, up to 80 MB, 64 megapixels, and 16384 pixels on the longest edge. Device memory limits can still prevent reading or export.
- The combined image data in a ZIP is limited to 256 MiB. If the result is too large, select fewer ratios or download images individually.
- Exports are re-encoded static PNGs and do not keep source metadata or animation. Transparent pixels are preserved; the checkerboard in the preview is not part of the export.
- Closing the page discards the image and adjustments from this session.
Frequently asked questions
Can I process several different source images at once?
No. The tool reads one source image at a time, but can export several ratios from it. For multiple photos, open them one by one, or use Image Compressor first to control file size.
Why is the exported image smaller than the source?
The export contains the selected crop, not the entire source image. It keeps the crop's original pixels, but its pixel dimensions are smaller than the full image. A tighter zoom keeps a smaller region.
Why do the crops return to the center after I replace the image?
Replacing the source resets every frame so the previous composition is not applied to a different photo. Select the current ratio and reframe as needed.
Will the tool add white or black borders?
No. It crops to fill the frame and does not add padding. If the subject is cut off, choose a ratio closer to the source or leave more room when shooting.
Is transparency preserved?
Yes. PNG exports keep transparent pixels inside the crop. The checkerboard in the preview is only a background guide and is not included in the result.
Related tools
To reduce the source file size first, use Image Compressor. To change the output format, use Image Converter. If you also need a device frame around a screenshot, continue with Device Mockup.