Image Resizer
What Is
Image Resizer is a browser-based tool that changes image dimensions using the Canvas API. It supports resizing by exact pixel width/height, scaling by percentage, and locked aspect ratio mode.
The tool uses high-quality image smoothing to produce sharp results at any size.
How to Use
- Open the Image Resizer in your browser.
- Upload your image by clicking or dragging.
- Enter desired width/height in pixels or use percentage slider.
- Toggle maintain aspect ratio to auto-calculate the other dimension.
- Preview and download in your preferred format.
Examples
Input: Image: 4000×3000 → width 800
Process:
Resize by width, keep aspect ratioResult: resized.jpg (800×600, -97% file size)
Input: Image: 1920×1080 → 50%
Process:
Resize by percentage 50%Result: resized.jpg (960×540)
Related Searches
People also search for: image resizer, resize images, scale images, image dimensions, photo resizer, picture resize.
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Frequently Asked Questions
Can I resize without losing quality?
Downscaling preserves quality well. Upscaling uses bicubic interpolation for best results but cannot add original detail.
Maximum image size?
Any dimension works, but very large images (over 10000px) may need more memory.
Maintain aspect ratio?
Yes, the option auto-calculates the second dimension.