Resize any image to the perfect dimensions
Scale photos to exact pixel sizes for Instagram, Facebook, LinkedIn, YouTube thumbnails, and more. Choose a preset or enter custom dimensions — your image is processed in the browser and never uploaded to a server.
Use this tool freeFeatures
Social-media presets
One-click sizing for Instagram posts (1080 x 1080), Facebook covers (820 x 312), LinkedIn banners (1584 x 396), YouTube thumbnails (1280 x 720), and X/Twitter headers (1500 x 500).
Lock or unlock aspect ratio
Keep the original proportions by locking the aspect ratio, or unlock it to stretch and fit any custom canvas size you need.
Batch resize
Drop multiple images at once and resize them all to the same target dimensions in a single pass. Download results as a ZIP file.
Real-time preview
See the resized output side-by-side with the original before you download, so you can confirm sharpness and composition at the new size.
How to use
Upload your image
Drag and drop a JPEG, PNG, or WebP file — or click to browse your device. Files up to 50 MB are accepted.
Choose your dimensions
Pick a social-media preset from the dropdown, or type in custom width and height values in pixels.
Preview and download
Check the resized preview, then hit Download to save the new image to your device in the original format.
Specifications
| Supported formats | JPEG, PNG, WebP |
| Max file size | 50 MB |
| Max resolution | 10,000 x 10,000 px |
| Processing | Client-side (browser only) |
| Batch limit | 20 images per session |
| Output quality | Lanczos resampling |
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Common questions
Does resizing reduce image quality?
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Downscaling rarely causes visible quality loss. Up-scaling beyond 200 % can introduce softness — for best results, pair the resizer with our AI Enhance tool to sharpen enlarged images.
Is my image uploaded to a server?
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No. All processing happens inside your browser using the Canvas API. Your file never leaves your device.
What dimensions should I use for an Instagram post?
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Instagram recommends 1080 x 1080 px for square posts, 1080 x 1350 px for portrait, and 1080 x 566 px for landscape. Our preset menu includes all three options.
Need smarter resizing?
AI Enhance can upscale images up to 4x while adding realistic detail. Try it after resizing for pixel-perfect results.
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