Resize Image Online
Set the exact width and height you need. Aspect ratio locks by default to keep proportions. Everything runs in your browser.
Drop a photo to start
JPG, PNG, WebP, HEIC up to 40 MB · stays in your browser
Never uploaded · 100% browser-side
How it works
- 1
Drop your photo
Drag & drop or browse to upload your image.
- 2
Set new dimensions
Type a width or height; the other locks to keep your aspect ratio. Unlock to stretch freely.
- 3
Download the resized image
Save the result, or open it in our AI editor for more edits.
Why use this online tool
Aspect-locked by default
Type one dimension; the other follows. Avoids stretched-looking output.
Bicubic-quality scaling
We use the browser's high-quality Canvas resampler - clean results without the pixelation cheap tools produce.
Privacy-first
Your image is never uploaded. Resizing happens entirely on your device.
Free, no watermark
Unlimited resizes, no signup, no overlay on the result.
When to use it
- Email attachment size - resize to 800-1200 px wide before sending
- Web upload limits - shrink to fit a marketplace's max dimensions
- Print preparation - upscale to a target physical size at the right DPI
- Social media - resize to the platform's recommended dimensions
- Performance - reduce huge phone photos before embedding on a website
Frequently asked questions
- Will resizing reduce my image quality?
- Reducing dimensions (downscaling) is essentially lossless - you keep all the detail visible at the smaller size. Increasing dimensions (upscaling) introduces blur because pixels are interpolated. For AI upscaling without blur, use our AI image upscaler instead.
- Can I resize by percentage instead of pixels?
- Yes - type a percentage in the width or height field (e.g. '50%') and the tool calculates the pixel count for you.
- What's the maximum output size?
- Up to 10000 × 10000 pixels. Larger than that hits browser memory limits on most devices.
- How do I resize without changing the aspect?
- Aspect-lock is on by default - just type one dimension and the other follows. Unlock the toggle to set both freely (the result may look stretched).
- Does this work on mobile?
- Yes - the resize widget works in any modern mobile browser. For very large photos, desktop browsers handle bigger files more comfortably.
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Need more than just resize image online?
Our AI editor goes way beyond simple transforms - background removal, style transfer, upscaling, photo-to-anime, and 50+ more AI tools. First 5 edits are on us.
Open AI editor - 5 free credits