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How to Generate Product Thumbnail Sets for Coupang, Smartstore, and Instagram

June 17, 2026 EasySolve Seller Tools Team

Tired of Adjusting Thumbnail Sizes for Every Marketplace?

When managing online storefronts, listing a single product requires creating multiple variations of cover photos to satisfy diverse e-commerce requirements:

  • Naver Smartstore: 1000 x 1000px (1:1 square ratio)
  • Coupang Cover Photo: 1000 x 1000px
  • Instagram Post: 1080 x 1080px (or 1080 x 1350px portrait)
  • eBay / Amazon: 1000 x 1000px up to 1600px+

Since the thumbnail is the very first visual anchor a potential buyer sees, ensuring your photo looks crisp, un-stretched, and centered is paramount to driving conversions.

💡 Checklist for Perfect Product Images

  • Zero distortion (maintain the original aspect ratio).
  • Product positioned dead center so it stands out immediately in search results.
  • High-res canvas outputs that won't look blurry when compressed by marketplace servers.
  • Clean, professional background borders (e.g. solid white #FFFFFF) where padding is needed.

EasySolve Product Image Maker (Image Set Creator) Features

EasySolve's Product Image Maker lets you upload a single master photo and, with just one adjustment, generate multiple optimized crops for Coupang, Smartstore, Instagram, and more.

1. Choose Between 'Cover' and 'Contain' Modes

Depending on your product shape, you can fit the image into the target square viewport in two ways:

  • Cover: Expands the image to fill the square box completely. While some outer edges are cropped out, this creates a bold, edge-to-edge listing cover.
  • Contain: Fits the entire image inside the square box. Any blank outer spaces are filled with a custom background color (typically solid white), ensuring the entire product silhouette remains fully visible.

2. Interactive Scale (Zoom) & Position Adjustments

Fine-tune size using a real-time slider to zoom in or out. You can also drag the image inside the viewport with your mouse or finger to make sure the product sits perfectly centered.

3. Batch Generation and ZIP Export

Once you edit the master image, the generator processes the Coupang preset (1000px), Smartstore preset (1000px), and Instagram preset (1080px) in the background. Clicking download exports them all instantly inside a structured ZIP file direct from your browser memory.

Unmatched Speed and Complete Security

Unlike Photoshop or online editors, EasySolve requires no boot times or logins. Furthermore, because our tools run entirely client-side, your unpublished, proprietary product photos never touch our servers. This ensures your commercial designs remain completely private.