Lower the quality or the pixel width until the file is small enough, and compare the before and after sizes before you download.
Runs in your browser — nothing is uploaded
Large photos slow down websites and fail upload limits. Two settings do most of the work: quality controls how much detail the encoder discards, and max width reduces the number of pixels. Together they often shrink a camera photo from several megabytes to a few hundred kilobytes.
WebP usually gives the smallest file at a given quality, so it is the default. Choose JPEG when the destination only accepts JPEG. Compression is lossy, so keep the original file if you may need full quality later.
The result shows the original size, the new size and the percentage change. If the new file is larger, the tool says so, which usually means the image was already well compressed or the quality is set too high.
Most photographs look almost identical at WebP quality 75 to 85 or JPEG quality 80 to 85, and the file typically shrinks by 70 to 90 percent from a camera original. Lower the quality further only when you can see blockiness in skies or around edges.
Only if you set a max width. Leave it empty to keep the original pixel size. A max width below the original scales the image down proportionally, which reduces the file size more than quality alone and suits web display.
WebP is smaller at the same visual quality and supports transparency. JPEG is supported everywhere, including older email clients and print workflows. Choose WebP for websites and apps, and JPEG when a form, portal or printer requires it.
This happens when an image is already heavily compressed and you raise the quality, or when a small image is re-encoded at high quality. Choose a lower quality value or keep the original. The tool warns you when the output is larger than the input.
Yes. The image is redrawn and encoded again, so camera metadata and GPS coordinates are removed. That helps when you share a photo privately, but keep a separate copy if you need the metadata.
No. Compression runs in your browser with a canvas, so the file never reaches a server. That makes it suitable for confidential documents and private photos as well as public images.