Image Resizer - Free Online Tool
Image Resizer
Resize Any Image to Exact Dimensions
Drag & drop an image, or click here
Understanding Image Resizing
Fit Platform Requirements
Resize an image to meet exact dimension requirements for a website, social platform, or upload form.
Aspect Ratio Lock
Keep width and height proportional automatically to avoid stretching or squashing your image.
Faster Page Loads
Serving an image at its actual display size (rather than a larger original) reduces page weight and load time.
Local Processing
Resizing happens entirely in your browser using the Canvas API — your image is never uploaded.
Resizing vs. Cropping
Resizing scales the entire image up or down to new dimensions, potentially distorting it if the aspect ratio changes — which is why the aspect-ratio lock is on by default. If you need to change the image's proportions by removing part of the frame instead of stretching it, use the Image Cropper tool instead.
Key Takeaways
- Exact Pixel Control: Specify the precise width and height you need in pixels.
- Aspect Ratio Lock: Optionally keep proportions locked to avoid unwanted distortion.
- Client-Side Only: All resizing happens locally in your browser — no data is ever sent to a server.