Resize any photo to the perfect Facebook cover size (820x312px). Smart fill avoids distortion. Real-time preview, free, browser-based, no upload required.
1. Upload Image
Max 50MB
2. Select Format
Upload an image to see the preview
About the Facebook Cover Tool
Facebook cover photos must be exactly 820x312 pixels on desktop and 640x360 on mobile. Our resizer applies a smart cover-fill algorithm to any image, ensuring your cover fits perfectly without stretching or black bars.
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.
Frequently Asked Questions
What are the correct image dimensions for Instagram in 2025?+
Square: 1080x1080px (1:1) | Portrait: 1080x1350px (4:5) | Reels/Stories: 1080x1920px (9:16) | Landscape: 1080x566px. Our presets are updated to match current platform specifications.
Will resizing for social media crop my image?+
Yes, to fit the exact platform ratio without black bars. We use a smart cover-fill algorithm that centers your subject. You can see a real-time preview before downloading.
Can I resize the same image for multiple platforms?+
Yes. Resize for Instagram, then switch the preset to YouTube or LinkedIn and download a new version — all without re-uploading.
What format is the output image?+
PNG by default for maximum quality. This ensures crisp logos, text overlays, and screenshots. For photos, the visual difference from JPG is negligible at social media display sizes.
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