Image Resizer Online
Change image dimensions by pixel size or percentage. Choose output format and quality.
Runs entirely in your browser
Click or drag image here
Supports JPG, PNG, WebP, GIF
Choose fileRate Image Resizer4.7(199 votes)Rate Image Resizer
Specialized use cases
Resize Image for Passport Photo - Exact 2x2 Inches & 35x45mmCrop and resize your photo to official passport dimensions (2x2 inches / 35x45mm / 600x600 px) locally in your browser. Compliant with US, Schengen, and Indian visa guidelines.Resize Image for Instagram Story - Exact 1080x1920 PXCrop and resize photos to the optimal 9:16 aspect ratio (1080x1920 pixels) for Instagram Stories and Reels without distortion.Resize Image for YouTube Banner - 2560x1440 PXResize and format channel art to YouTube's official 2560x1440 pixel dimensions with safe area guidance.
How to use Image Resizer
- 1Upload your image (JPG, PNG, or WebP).
- 2Enter the new width and height in pixels, or set a percentage scale.
- 3Click 'Resize' and download the resized image instantly.
Privacy & security
Image resizing is done entirely in your browser using HTML5 Canvas. Your images are never uploaded to any server.
Your images are resized locally in browser memory. Nothing is sent to any server.
Frequently asked questions
Can I resize while keeping the aspect ratio?
Yes. Lock the aspect ratio by clicking the chain icon — changing one dimension automatically updates the other.
Will resizing reduce image quality?
Scaling down looks sharp. Scaling up significantly beyond the original size will cause pixelation.
Which formats are supported?
JPG, PNG, and WebP images are supported. The output format matches the original.