Resize images for OnBuy.
Drop your photos and download them at 1,000 × 1,000 pixels for OnBuy. Each photo is fitted inside that size and padded, so the product is never cut. It runs in your browser; nothing is uploaded.
Choose the size.
Sizes come from each marketplace's own help pages, summarised in the guides (checked 24 September 2026).
What OnBuy asks for.
Source: OnBuy — OnCommerce API Documentation v2 (Image Download Requirements; Content Scope); Seller Terms v3.0.0 · checked 12 October 2026
OnBuy product images: 500 × 500 pixels recommended, 1,000 × 1,000 maximum, up to 10 MB, JPG, JPEG, PNG or GIF, white background where possible.
- Size used
- 1,000 × 1,000 px — OnBuy's maximum; it recommends 500 × 500 pixels for best results.
- Formats
- JPG, JPEG, PNG and GIF only
- Recommended
- 500 × 500 pixels for best results
- Maximum
- 1,000 × 1,000 pixels
- File size
- Maximum 10 MB
Resizers by marketplace.
Resizing for OnBuy, answered.
What size does this tool use for OnBuy?
1,000 × 1,000 px — OnBuy's maximum; it recommends 500 × 500 pixels for best results.
Is the product cropped when resizing for OnBuy?
No. The photo is scaled to fit inside the target size and the remaining space is filled with the padding colour, so the whole product stays in frame.
Where do these figures come from?
From OnBuy — OnCommerce API Documentation v2 (Image Download Requirements; Content Scope); Seller Terms v3.0.0, read on 12 October 2026. Marketplaces update their rules; the official page is the final reference.
Your next collection, shot this week.
20 credits at sign-up, no card required. Images made with free credits carry a watermark.