What is Miko Bulk Image Resizer?

What it does

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

1. Install

   Add the app from the Shopify App Store. It opens inside your Shopify admin.

2. Choose the products or collections to run

   The whole catalog, a hand-picked set, a collection, or a tag, vendor or product type.

3. Pick a resize mode and settings

   Longest side, width and height, a percentage, a target file size, or a watermark on its own.

4. Preview the before and after on your own photos

   Real dimensions and file sizes, measured on the full size result.

5. 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.

Who it is for

Shopify merchants whose product photos arrive in every size and shape: stores with slow pages caused by heavy image files, stores that want an even product grid where every card is the same shape, and stores with hundreds of images that have no alt text. It suits a catalog of any size, because you can test it on five products before you run the rest.

Key features

• 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

Plans at a glance

There is one way to pay: by usage. There is no monthly fee and no tier to choose.

The full detail is in Billing and limits.

Next step

Install the app and run a safe first job: Getting started →