Free Image Aspect Ratio Resizer (16:9, 1:1, 9:16, 4:5) Online
Resize and pad images to standard social media aspect ratios (Instagram 1:1, Stories 9:16, YouTube 16:9, Portrait 4:5) without cropping key content. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.
Click to upload or drag & drop your image here
Supports JPEG, PNG, and WebP up to 50MB. Target limit: 50 KB.
How It Works
Upload Image
Select any JPG, PNG, or WebP picture.
Choose Target Aspect Ratio
Select 1:1 Square, 4:5 Portrait, 16:9 Landscape, or 9:16 Vertical.
Choose Canvas Fit Mode
Select blur fill, white border, or crisp letterbox padding.
Download Resized Image
Save high-resolution image ready for social posting.
Frequently Asked Questions
Related Image Utilities Calculators & Utilities
Interlinked precision tools in the Image Utilities collection.
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Compress photos and images to exactly 100KB for college applications, job portals, and official form submissions — 100% client-side, zero uploads.
Compress Image to 200KB
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