What is Miko Bulk Image Resizer?
Resize, compress, watermark and describe product images across a whole catalog, previewed before anything changes.
Miko Bulk Image Resizer works on the images that are already on your store. It handles product images and collection images, and it changes them in place. You never download a file and you never upload one back. You choose how your images should look, check a preview built from your own photos, then run it. Every original is kept for 30 days, so any run can be undone. No theme changes, and no customer or order data is read.
How Miko Bulk Image Resizer works
Install → Choose the products or collections to run → Pick a resize mode and settings → Preview the before and after on your own photos → Run it. Miko replaces each image in place, keeps the original for 30 days, and records the run in History so you can restore it.
Key capabilities
- Resize in place, on product images and collection images, with no downloading or re-uploading
- Five resize modes, from a simple longest-side cap to an exact frame, a percentage, a target file size, or a watermark on its own
- Preview before you commit, built from your own photos, with real dimensions and file sizes
- Undo, restore a whole run or a single image with one click for 30 days
- Image Health, a free read of your catalog that finds oversized images, missing alt text and inconsistent shapes
- Bulk alt text, template based, with its own undo, and never charged
- Watermarks, your logo in one of nine positions, with a live preview
- Filenames, keep your own or rebuild them from the product title
- Scheduled runs, weekly or monthly, plus an option to tidy new products as they are added
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