Resize image
Resize JPG, PNG, WebP, and AVIF images in batches by dimensions, percentage, long or short edge. Fit, crop, pad, prevent enlargement, and create multiple sizes locally in your browser.
Extend image canvas
Add independent padding around an image without cropping it, choose the image anchor, and export with a transparent or solid-colour canvas.
Local processing: your source images stay on this device.
Files
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No images selected yet.
Settings
ID photo compositionOn-device detection only suggests a crop; you can still adjust it before export.
This image’s crop has not been confirmed.
ID photo backgroundOptional on-device portrait cut-out; the original never leaves your device.
Dimensions
Preset sizeCommon platform sizes
Select one or more sizes; each image is exported in every selected size.
Icon safe area
One composition generates favicon, PWA and common app sizes, plus a manifest.
Crop areaDrag the box to resize or reposition it
Rotation0°
Quality
Padding on each sidepx
Upscale imageReal-ESRGAN · 2×
Frame rangeLeave the last frame blank to use the rest.
Base64 increases data size. This tool limits input to protect browser memory.
How to use
Extend image canvas
What this tool is for
Add independent padding around an image without cropping it, choose the image anchor, and export with a transparent or solid-colour canvas.
How to use it
Enter top, right, bottom, and left padding or a larger canvas size, then choose the image anchor and a transparent or solid background. The source is not cropped, making this suitable for borders, centring, and layout space.
Results and next steps
Each selected source produces one result card with preview, pixel dimensions, format, and size. Download one file, selected files, or the complete ZIP.
Privacy and local processing
Processing runs in your browser. Source images are not uploaded by this tool.
Before you start
Your browser must decode images into memory. Very large files, long animations, and large batches may require substantial memory. Check the preview and export details, and verify the latest official requirements before submitting identity, application, or print-ready images.
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