Resize Image Online Free
Change image dimensions to exact pixels. Lock aspect ratio, use social media presets, or enter custom sizes. 100% private — images never leave your browser.
Click to upload or drag your image here
JPG, PNG, WebP • Maximum size: 50 MBResize Settings
Common Sizes
Output Quality: 90%
Higher quality = larger file size. Lower quality = smaller file size.
Resizing image
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☕ Support Kimosabe ToolsFast & Accurate Image Resizing
Whether you need to fit a social media requirement or reduce dimensions for a website, our tool uses high-quality smoothing built directly into your browser for sharp, accurate results.
Your photos stay on your device throughout the process. No uploads to our servers means maximum privacy.
Set exact pixel dimensions or use presets for Instagram, Facebook, HD video, and more.
Toggle the aspect ratio lock to maintain proportions automatically, or unlock for freeform resizing.
No watermarks, no file limits, no registration needed. Completely free to use.
Frequently Asked Questions
Can I resize an image without losing quality?
Reducing an image generally preserves quality well. Enlarging always involves some quality loss since new pixels must be interpolated. Our tool uses the browser's high-quality smoothing algorithm for the sharpest results in both cases.
Will resizing change the file format?
No. JPG images are saved as JPG, PNG as PNG, and WebP as WebP. If you also want to change format, use our Image Converter tool after resizing.
How do I resize an image for Instagram?
Upload your image, then click the Instagram preset (1080×1080). The dimensions fill in automatically. Click Resize and download. For Stories (1080×1920) enter the dimensions manually.
Is there a maximum size I can resize to?
Upload limit is 50 MB. Output dimensions are capped at 10,000 × 10,000 pixels to protect your browser from running out of memory on very large canvases.