Advanced Photo Dimension Sorter, Resizer & Device Preview
Upload any photo → resize to all dimensions at once → preview on every device → bulk download. 70+ presets for every social media, reel, and website format. 100% free, 100% in your browser.
Upload & Resize Your Photo
Drag and drop or click to browse. Supports JPG, PNG, WebP, GIF, BMP, SVG. All processing runs locally — your photos never leave your device.
Resize Settings
Select sizes below using checkboxes, then click Resize to All Selected Sizes. Every result shows a live preview with individual download and device preview.
Browse, Sort & Select Dimensions
70+ presets. Check boxes to select sizes, then scroll up and click Resize. Or use "Select All Visible" / "Select by Category" for quick batch selection.
Custom Dimension Calculator
Enter width and height to calculate aspect ratio, megapixels, orientation, and file size.
Key Formulas in Photo Dimension Calculations
1. Aspect Ratio
2. Megapixels
3. Proportional Scaling
4. Fit Scale
5. Fill Scale
6. Uncompressed File Size
How to Choose the Right Photo Dimensions
Each platform enforces specific image requirements. Incorrect sizing causes cropping, blurring, or wasted bandwidth. This tool gives you exact presets and one-click batch conversion.
Social media: Match native resolution. Instagram processes at 1080 px wide.
Reels and video: 1080 × 1920 (9:16) fills mobile screens on TikTok, Reels, Shorts.
Website assets: Hero at 1920 × 1080 in WebP stays under 200 KB with sharp quality.
Understanding Resize Modes
Fit keeps the full image visible with white padding. Fill & Crop covers edge-to-edge and trims overflow — best for social media. Stretch forces exact dimensions but may distort.
Frequently Asked Questions
Square: 1080×1080 (1:1). Portrait: 1080×1350 (4:5). Landscape: 1080×566 (1.91:1).
Yes. Upload your image, check dimension cards, click Resize. All sizes generate with live preview thumbnails. Use Download All for bulk save.
Click Preview on any result card. A popup shows realistic phone, tablet, and desktop frames with your image inside. You can also download directly from the preview.
1080×1920 (9:16 vertical). YouTube Shorts uses the same format.
Fit keeps all content with padding. Fill covers the canvas and crops overflow. Stretch forces exact dimensions. Use Fill for most social media.
No. 100% browser-based via Canvas API. Zero network requests during processing.
Yes. After resizing, click "Download All" to save every size. Or "Download All as JPEG" to convert everything to compressed JPEG for smaller files.
MP = (Width × Height) ÷ 1,000,000. Example: 4000×3000 = 12 MP.