Select an image
Choose a JPG, PNG, or WebP file. Its original dimensions automatically fill the width and height fields.
Image Resizer
Resize an image to exact dimensions while keeping control of quality and format.
Your resized image
—Original
—New size
—Dimensions
How to resize an image by pixels
Set an exact width and height for a website, profile, presentation, form, or email attachment while processing the original locally.
Enter new dimensions
Keep aspect ratio locked to prevent distortion, or unlock it when an exact width and height are required.
Choose a format
Select JPG, PNG, or WebP, adjust quality where applicable, and download the resized result.
Resize JPG, PNG, and WebP privately
The image is decoded, resized on an in-browser canvas, and downloaded without being uploaded to FreNiMi. Width and height can be set from 1 to 12,000 pixels, subject to browser and device memory limits.
Reducing dimensions usually lowers file size because the output contains fewer pixels. Enlarging an image creates more pixels but cannot restore details that were missing from the source.
Practical image-sizing tips
- Keep aspect ratio enabled for photographs and logos.
- Use WebP for many modern website images.
- Use JPG for broadly compatible photographs.
- Use PNG when transparency or lossless graphics matter.
Frequently asked questions
Are images uploaded to FreNiMi?
No. Supported images are processed locally in your browser and downloaded directly to your device.
Will resizing improve a blurry image?
No. Enlarging can add pixels but cannot recover missing visual detail.
How do I avoid stretching?
Leave Lock aspect ratio selected. Changing either dimension will automatically calculate the other value.
Which format should I choose?
WebP is a strong choice for the web, JPG for broad photo compatibility, and PNG for transparent or lossless graphics.