Set a precise width and height or preserve the original aspect ratio automatically.
Free image resizer.
That’s it.
Resize JPG, PNG and WebP images online. Free and private.
Drop an image here
JPG, PNG, WebP, GIF, or BMP
Up to 40 MB and 24 megapixels. Animated images export as a still image.
New size
Output
Resize images online in seconds
Tuck is a free image resizer for changing image dimensions, adjusting file size, and converting common image formats. Everything happens locally in your browser, so your pictures never leave your device.
Resize and convert popular image formats. Adjust quality for JPG and WebP; PNG uses lossless encoding.
No server upload, registration, watermark or stored copy of your image.
Image resizing questions
How do I resize an image online for free?
Choose or drop an image, enter the width and height you need, select an output format, and download the resized copy. Tuck is free and requires no account.
Can I resize a JPG, PNG or WebP image?
Yes. Tuck accepts JPG, PNG, WebP, GIF and BMP files and exports JPG, PNG or WebP where supported by your browser. Animation is not preserved. Input is limited to 40 MB and 24 megapixels; output to 16 megapixels, with a maximum of 12,000 pixels per side.
How do I resize an image without stretching it?
Keep the aspect-ratio link enabled. Changing either the width or height will automatically calculate the other dimension. You can also use “Fit inside” or “Fill & crop.”
Are my images uploaded or stored?
No. Image processing happens inside your browser. Tuck does not upload or retain your files.
Will resizing make my image file smaller?
Smaller dimensions and lower JPG or WebP quality often reduce file size, but the result depends on the source and output format. PNG quality is not adjustable. Enlarging an image does not restore missing detail.
Does the resized image have a watermark?
No. Downloads are watermark-free and ready to use.