About the IG Portrait Post Tool
The 4:5 portrait ratio (1080x1350px) is Instagram's secret weapon for organic reach — it takes up 20% more vertical screen space than a square post, reducing the chance that users scroll past your content before engaging. DCPIXEL resizes any image to this format with intelligent smart-fill cropping.
100% Private — Processed in Your Browser
Every file stays on your device. DCPIXEL processes images entirely using the browser's built-in Canvas API and WebAssembly — zero server uploads, zero data collection.
Free — No Account, No Limits
DCPIXEL is completely free with no daily limits, no watermarks, and no registration. We never process your files on our servers, so we can offer this permanently at no cost.