When to use it
Use it for upload requirements, thumbnails, profile photos, docs screenshots, blog images, and small visual prep.
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Image Resizer
Resize an image in-browser when you need dimensions, not a full design app.
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Resize image
Files stay in this browser. Canvas export also strips embedded metadata.
Original
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Resized preview
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Output
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Saved
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Change
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smaller is better
What this tool does
Image Resizer changes width, height, or percentage locally, with aspect-ratio lock, preview, and download.
How it works
Load an image, set dimensions or scale percentage, preview the result, and download the resized file.
Useful for
- Matching exact upload dimensions.
- Making thumbnails.
- Reducing screenshot dimensions.
Limitations
Canvas resizing is practical for everyday images, but very large files can be limited by device memory.
Questions before the button mashing
Can it keep aspect ratio?
Yes. Keep the lock enabled to update the other dimension automatically.
Is resizing local?
Yes. The image is processed in your browser.
Related tools
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Image Compressor
Compress images locally with a quality slider, optional max dimensions, preview, and size savings.
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Convert Image to WebP
Convert common image files to WebP locally with quality control and before-and-after sizes.
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JPG to PNG Converter
Convert JPG or JPEG images to PNG locally and download the converted file.
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Remove Image Metadata
Re-encode images through canvas to strip most common metadata before sharing.