Resize without uploading
Image decoding, resizing and export happen locally in your browser.
Private · Browser-based · No upload
Resize & Crop Image Online
Resize by pixels or percentage, crop to common ratios or a custom area, then export locally.
JPG · PNG · WebP · AVIF · HEIC · HEIF · TIFF · SVG · JFIF
Choose imagesDrag or click to choose
—
Precise dimensions
Enter exact width and height or use a percentage while optionally locking the original ratio.
Flexible crop
Use Free, 1:1, 4:3, 3:2 or 16:9, then move or resize the crop box.
How to use Resize & Crop Image Online
- 1
Add an image
Choose, drag or paste the image you want to resize.
- 2
Resize changes dimensions, not the crop area
Set an exact width and height or scale by percentage. Keeping the aspect ratio locked avoids stretching; quick-width presets change width while preserving the selected proportions.
- 3
Crop removes pixels outside the selected area
Move and resize the crop box, use exact X/Y/Width/Height values, or choose a common aspect ratio. Cropping does not resize the selected pixels unless you switch back to Resize.
- 4
Export the resized image
Confirm the output dimensions, choose JPG, PNG, WebP or AVIF, then export the result.
About Resize Image Online
Resize changes output dimensions by pixels or percentage. Lock the aspect ratio to avoid accidental distortion.
Frequently asked questions
How do I resize without stretching the image?
Keep Lock aspect ratio enabled. Changing width, height, percentage, or a quick-width preset will preserve the original proportions.
Does resizing always make the file smaller?
No. Resizing changes pixel dimensions; file size also depends on output format, quality, transparency, and the image content.
Are my images uploaded to a server?
No. Supported image processing runs locally in your browser. Third-party decoder code may be loaded only when a format needs it, but your image itself stays on your device.
Private browser processing
ViewerPix processes supported images on your device. Your image files are not uploaded to a ViewerPix application server for this task.
Resize changes dimensions, not the crop area
Set an exact width and height or scale by percentage. Keeping the aspect ratio locked avoids stretching; quick-width presets change width while preserving the selected proportions.