eBay Product Photo Resizer & Compressor (1600×1600 px)
Format product listings to eBay's recommended 1600×1600 pixel specification to activate high-definition zoom and boost seller ratings.
Strict 100% In-Browser Binary Compression
Tested on 50+ official Indian exam engines (SSC, UPSC, IBPS, NTA, Passport Seva). Zero server upload, zero data collection.
eBay requires product images to be at least 500 pixels on the longest side, but strongly recommends 1600 × 1600 pixels to enable high-definition magnification and zoom features for buyers. Photos must be in JPEG or PNG format under 7 MB with clean borders. ResizeInKB formats your eBay inventory photos instantly.
How to eBay Product Photo Resizer & Compressor (1600×1600 px)
- 1Upload your eBay listing photographs.
- 2Our preset formats the image to 1600×1600 pixels in high-grade JPEG.
- 3Adjust crop framing to center the product against a clean background.
- 4Download and attach directly to your eBay listing draft.
Target Specifications
Official Portal Upload Criteria Comparison
| Exam / Portal Name | Photo Limit | Signature Limit | Dimensions | Required Format |
|---|---|---|---|---|
| SSC (CGL/CHSL/MTS) | 20 KB - 50 KB | 10 KB - 20 KB | 3.5 x 4.5 cm | JPG / JPEG |
| UPSC Civil Services | 20 KB - 300 KB | 20 KB - 300 KB | 350x350 px min | JPG / JPEG |
| IBPS Bank Exams | 20 KB - 50 KB | 10 KB - 20 KB | 200x230 px | JPG (Black Ink) |
| NEET / JEE (NTA) | 10 KB - 200 KB | 4 KB - 30 KB | 4x6 Postcard | JPG / JPEG |
How Client-Side Image Binary Compression Works Under the Hood
When you select a target size (e.g., 20KB or 50KB), ResizeInKB executes an in-browser binary search algorithm using the HTML5 HTMLCanvasElement.toBlob() API. It dynamically adjusts JPEG quantization matrices and pixel dimensions directly inside your browser's V8 JavaScript engine memory. Because no HTTP requests send image data across the network, your processing is instant, works offline, and keeps your private photos completely secure.