Compress Image
Reduce JPG, PNG and WebP file sizes directly in your browser.
Resize Image
Resize JPG, PNG and WebP images by pixels or percentage directly in your browser.
Your files stay on your device.
Drop an image to resize it Release to open it
JPG, PNG, WebP, AVIF, GIF and BMP images up to 50 MB; HEIC and TIFF where this browser can decode them.
Images are processed on your device. Nothing is uploaded, and your original is never changed.
Help improve UNQIRO
Allow anonymous usage statistics? UNQIRO would count only which tool was used, whether it finished and which links between the tools and the Format Lab were followed. Your files, text and results are never included, and this use is not counted.
Good to know
- With Keep aspect ratio on, one side is enough; nothing is cropped or stretched. A percentage scales both sides.
- Enlarging adds pixels, not detail: a bigger image looks softer at full size.
- JPG, PNG and WebP up to 40 megapixels. AVIF, GIF and BMP (HEIC and TIFF where the browser can decode them) are resized into JPG, PNG or WebP. For a file under a size limit, use Compress Image instead.
Frequently asked questions
Does resizing an image reduce quality?
Making an image smaller removes pixels, so fine detail is lost, but on screen the result usually looks sharp at its new size. For JPG and WebP, the quality setting also affects the result; PNG is saved without loss.
Can I resize a PNG with transparency?
Yes. If you keep PNG (or choose WebP) as the output format, transparency is preserved. JPG cannot store transparency, so if you save as JPG you choose a background colour for the transparent areas.
Does resizing keep the photo metadata?
Not in the new image: your browser saves it without camera details, the date taken or GPS location. Photos are turned upright first, so they still display correctly. To see what a photo contains first, open Image Metadata. If the tool offers your original unchanged, its metadata stays as it was.