Shrink an image's file size with a quality slider, and see exactly how many kilobytes you saved. Fast, free, and built for simple browser-based workflows.
No image selected yet. Compression happens in your browser — the file is never uploaded.
Choose an image, pick a quality level, then click Compress Image.
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Image Compressor is a free online tool that re-encodes a photo at a lower quality setting so the file takes up far less space. Pick a quality level, click once, and the page tells you how many kilobytes you saved -- no account, no upload, and nothing to install.
It earns its keep whenever a file is too heavy for where it is going: a 6 MB camera photo that a contact form rejects at 2 MB, product images slowing a shop page to a crawl, screenshots for a support ticket, or holiday pictures you want to email without them bouncing back. Dropping the quality to 0.7 and capping the width at 1600 pixels usually takes a large photo down to a fraction of its size with no visible difference.
Your photo never leaves the device. The compression runs on a canvas inside your browser, so nothing is uploaded to this site or anywhere else -- and because the result is a fresh re-encode, the camera model and GPS location stored in the original are dropped along the way. That is worth knowing before you post a picture publicly.
Click Choose Image and pick a JPEG, PNG or WebP file. Its dimensions and current file size appear underneath, so you know what you are starting from.
Drag the Quality slider. It starts at 0.7, a good balance for photos; lower values shrink the file further and start to soften fine detail.
Type a number into Max Width to scale the photo down at the same time. On a large camera image this saves far more space than quality alone.
Click Compress Image, read the line below the preview showing how much you saved, then click Download. Clear resets everything for the next photo.
Yes! All our tools are 100% free to use with no hidden costs, no registration required, and no credit card needed.
Absolutely. All tools run entirely in your browser (client-side). Your data never leaves your device and is not sent to our servers.
Yes, once the page is loaded, the tool will continue to work even if you lose internet connection since it runs in your browser.
Yes! All our tools are free for both personal and commercial use.
It depends on the original. A large camera photo saved at quality 0.7 often drops by most of its size, while an image that is already compressed may barely move. The tool shows the exact before and after figures after each run, so you can adjust the slider and try again.
JPEG and WebP are lossy, so yes -- some detail is discarded, which is what makes the file smaller. At 0.7 the loss is usually invisible at normal viewing size. Choose PNG if you need lossless output, though the file will be considerably larger.
That usually means the original was already well compressed, or you converted a photo-like JPEG to PNG, which stores every pixel exactly. The tool warns you when this happens. Try a lower quality, the WebP format, or a smaller Max Width.
Compressing keeps the pixel dimensions and stores them in fewer bytes. Resizing changes the dimensions themselves. This tool can do both at once through Max Width. If you only need new dimensions and no quality loss, use the Image Resizer instead.
WebP gives the smallest file and is supported by every current browser, so it is the best default for the web. JPEG is the safest choice for email and older software. PNG is lossless and best kept for logos, screenshots and anything with sharp edges.
No upload limit exists, because nothing is uploaded -- your device memory is the only real ceiling. The tool accepts JPEG, PNG and WebP files. HEIC photos straight from an iPhone are not supported by most browsers, so convert those to JPEG first.