How to Reduce Image Size for Google Merchant Center
You uploaded your product feed and Merchant Center came back with a wall of warnings — “image too small” on some items, others flagged for the upcoming resolution change. Google's image rules are strict and they are getting stricter, so it pays to get your feed photos to the right dimensions and a sensible file size. Here is how to do it for free.
How to resize and compress feed images with QuickWand
QuickWand's free image compressor lets you cap dimensions and shrink file size in one pass, entirely in your browser.
- Open the Image Compressor and drag in all of your product images at once.
- Turn on Resize → Max size and set the longest edge to around 800–1200 px. That clears Google's new 500×500 px minimum comfortably and matches its 800×800 px recommendation.
- Set Quality to about 85% and watch the live size estimate so each photo stays light without losing detail.
- Click Download all (.zip) and use the optimized images in your feed.
The 2026 Merchant Center image spec, in plain English
Google updated its product data specification for 2026. The key points for images:
- Recommended: 800×800 px or higher, up to 64 megapixels.
- Current minimum (until 31 January 2027): 100×100 px for non-apparel products and 250×250 px for apparel.
- New minimum: Google has raised the minimum to 500×500 px. It will begin showing warnings in Merchant Center from 14 April 2026, with enforcement starting 31 January 2027.
- Accepted formats: JPEG, PNG, WebP, GIF, BMP, TIFF.
In short: get every image to at least 500×500 px now, aim for 800×800 px or more, and you are future-proof. Google may serve an optimized version of some too-small images automatically, but you should not rely on that — meeting the spec yourself avoids disapprovals.
Keep them compliant and fast
Meeting the pixel minimum does not mean uploading bloated files. A 1000×1000 px JPEG at 85% quality can easily sit under 200 KB, which keeps your store and any landing pages fast — and page speed feeds back into your overall shopping performance.
If your source photos are heavy PNGs, run them through the PNG to JPG converter first, and if a supplier handed you WebP files you want as standard JPEGs, the WebP to JPG converter handles that in one click.