--- title: "Resize image to 400 × 400 px — free, no cropping | Herofab" description: "Resize photos to exactly 400 × 400 pixels in your browser. The whole product stays in frame, padded and never cropped. Free; nothing is uploaded." url: https://herofab.app/tools/resize-image-to-400x400 language: en updated: 2026-11-06 --- # Resize an image to 400 × 400 px. Drop your photos and download them at exactly 400 × 400 pixels. Each photo is fitted inside that size and padded, so the product is never cut. It runs in your browser; nothing is uploaded. ![Blush satin slip dress on a white background · Resize image to 400 × 400 px](https://herofab.app/img/ex/slip-dress-white-1100.webp) Made with Herofab · Packshot studio ## Choose the size. Sizes come from each marketplace's own help pages, summarised in the [guides](https://herofab.app/guides/) (checked 24 September 2026). ## Who asks for 400 × 400 px. Lines from Herofab's platform guides that name 400 × 400 px, whether as a recommendation, a minimum or a limit. Each row links to the guide and its official source. | Platform | Rule | What the guide says | Read | | --- | --- | --- | --- | | [Heureka](https://herofab.app/guides/heureka-image-requirements) | Clothing and shoes | Heureka.cz's fashion conditions require a quality image in the matching colour for every colour variant and recommend 160,000 pixels (about 400 × 400) or more; clothing should not be shown folded or hung but ideally on a figure, and a shoe image should show only the shoes | 10 October 2026 | | [Amazon Brand Store](https://herofab.app/guides/amazon-brand-store-image-size) | Brand logo | At least 400 × 400 pixels, up to 5 MB | 12 October 2026 | | [Shopware](https://herofab.app/guides/shopware-product-image-size) | Thumbnails | Three thumbnail sizes are generated by default for every uploaded image: 400 × 400, 800 × 800 and 1,920 × 1,920 pixels | 12 October 2026 | | [Etsy shop banner](https://herofab.app/guides/etsy-shop-banner-size) | Profile photo | Recommended size 400 × 400 pixels | 12 October 2026 | | [Amazon Ads](https://herofab.app/guides/amazon-ads-image-size) | Logo | 1:1 aspect ratio with a minimum size of 400 × 400 pixels for component-based creative; a brand logo must be the registered logo and fill the entire image or sit on a white or transparent background | 12 October 2026 | | [Orderchamp](https://herofab.app/guides/orderchamp-product-photo-requirements) | Brand images | Logo minimum 400 × 400 pixels (1:1), thumbnail minimum 400 × 400 pixels (1:1), founder picture and 3–8 inspirational images minimum 870 × 840 pixels | 12 October 2026 | | [Fruugo](https://herofab.app/guides/fruugo-image-requirements) | Minimum | 400 × 400 pixels; provide the highest resolution available | 12 October 2026 | ## From a phone photo to 400 × 400 px. Common 12-megapixel phone photo shapes fitted inside 400 × 400 px: how much each is scaled, the area the photo fills and the padding added on each side (↔ left + right, ↕ top + bottom). The tool above uses the same calculation. | Phone photo | Scale | Photo area | Padding | | --- | --- | --- | --- | | 4,032 × 3,024 · 4:3 | 9.9% | 400 × 300 px | ↕ 50 + 50 px | | 3,024 × 4,032 · 3:4 | 9.9% | 300 × 400 px | ↔ 50 + 50 px | | 4,032 × 2,268 · 16:9 | 9.9% | 400 × 225 px | ↕ 88 + 87 px | | 2,268 × 4,032 · 9:16 | 9.9% | 225 × 400 px | ↔ 88 + 87 px | | 3,024 × 3,024 · 1:1 | 13.2% | 400 × 400 px | — | ## 400 × 400 px in numbers. - **Aspect ratio:** 1:1 - **Megapixels:** 0.16 - **Print size at 300 dpi:** 3.4 × 3.4 cm · 1.33 × 1.33 in ## Other sizes. [100 × 100 px](https://herofab.app/tools/resize-image-to-100x100) · [150 × 150 px](https://herofab.app/tools/resize-image-to-150x150) · [300 × 300 px](https://herofab.app/tools/resize-image-to-300x300) · [500 × 500 px](https://herofab.app/tools/resize-image-to-500x500) · [600 × 600 px](https://herofab.app/tools/resize-image-to-600x600) · [640 × 640 px](https://herofab.app/tools/resize-image-to-640x640) · [800 × 800 px](https://herofab.app/tools/resize-image-to-800x800) · [1,000 × 1,000 px](https://herofab.app/tools/resize-image-to-1000x1000) · [1,024 × 1,024 px](https://herofab.app/tools/resize-image-to-1024x1024) · [1,080 × 1,080 px](https://herofab.app/tools/resize-image-to-1080x1080) · [1,200 × 1,200 px](https://herofab.app/tools/resize-image-to-1200x1200) · [1,500 × 1,500 px](https://herofab.app/tools/resize-image-to-1500x1500) · [1,600 × 1,600 px](https://herofab.app/tools/resize-image-to-1600x1600) · [2,000 × 2,000 px](https://herofab.app/tools/resize-image-to-2000x2000) · [2,048 × 2,048 px](https://herofab.app/tools/resize-image-to-2048x2048) · [2,200 × 2,200 px](https://herofab.app/tools/resize-image-to-2200x2200) · [2,560 × 2,560 px](https://herofab.app/tools/resize-image-to-2560x2560) · [1,200 × 628 px](https://herofab.app/tools/resize-image-to-1200x628) · [1,920 × 1,080 px](https://herofab.app/tools/resize-image-to-1920x1080) · [1,080 × 1,920 px](https://herofab.app/tools/resize-image-to-1080x1920) · [720 × 1,280 px](https://herofab.app/tools/resize-image-to-720x1280) · [762 × 1,100 px](https://herofab.app/tools/resize-image-to-762x1100) · [750 × 1,000 px](https://herofab.app/tools/resize-image-to-750x1000) · [Marketplace image resizer](https://herofab.app/tools/marketplace-image-resizer) ## 400 × 400 px, answered. **Which platforms ask for 400 × 400 px?** Heureka, Amazon Brand Store, Shopware, Etsy shop banner, Amazon Ads, Orderchamp, and Fruugo. The table on this page gives each rule in full and links to the platform's guide. **What aspect ratio is 400 × 400 px?** 1:1. The image has 0.16 megapixels and prints at 3.4 × 3.4 cm (1.33 × 1.33 in) at 300 dpi. **Is the product cropped when resizing for 400 × 400 px?** 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.