Resize Image
Resize JPG, PNG and WebP images by pixels or percentage directly in your browser.
Compress Image
Reduce JPG, PNG and WebP file sizes directly in your browser.
Your files stay on your device.
Drop an image to make it smaller 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.
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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.
Formats and limits
JPG, PNG and WebP, up to 40 megapixels; the result keeps the format of the original. PNG is lossless, so it gets smaller mainly with fewer pixels. AVIF, GIF, BMP, HEIC and TIFF images open in the same workspace but are not written back in their format: resize or convert them into JPG, PNG or WebP.
Frequently asked questions
Does compressing an image reduce its quality?
JPG and WebP compression removes detail your eyes are least likely to notice. At a quality around 70 to 85, most photos look practically the same while the file gets much smaller. At very low settings you will start to see blocky areas and smeared edges, so check the preview before you download.
PNG is lossless: saving it again never changes a single pixel. Sometimes that alone makes the file a little smaller; bigger savings need smaller dimensions.
Can I compress an image to a specific file size?
Yes. Choose "Maximum file size" (a PNG always uses it) and pick a size, or Custom for your own value. The tool looks for the highest quality that stays at or below that size. If that would make the image look noticeably worse, it scales the image down instead and tells you the new dimensions: a slightly smaller image at good quality usually looks better than a full-size one full of artefacts. The result is never larger than the size you chose.
Why is PNG harder to compress?
PNG stores every pixel exactly, which is great for screenshots, logos and graphics with transparency, but it has no quality setting to trade detail for size. For photos, PNG files are often much larger than a JPG or WebP of the same picture. To make a PNG noticeably smaller, the only option without changing the format is to reduce its dimensions.
Does compressing 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.