Image Compressor
Reduce JPG, PNG and WebP file size in your browser. Set a quality or a target size in KB. Images are never uploaded.
Quality and format · Same as input · 80
Size · Original size
EXIF data such as GPS location is not copied to the converted files.
How to compress images
- 1
Add images
Drop JPG, PNG or WebP files onto the page, click to browse, or paste with Ctrl+V. You can add several at once.
- 2
Choose format and quality
Keep the input format or switch to JPEG or WebP, then move the quality slider. 75 to 85 suits most web photos.
- 3
Optionally limit size
Set a max width or height to scale large photos down, or a target size in KB to fit an upload limit.
- 4
Download
Check the before and after sizes, then download each file or all of them as a ZIP.
Compressing images: what to know
Which quality to pick
For photos on a web page, 75 to 85 is usually hard to tell apart from the original at normal viewing size. For email attachments or forms with a size limit, 60 to 70 is a reasonable floor. Below about 50, JPEG shows blocky patches in smooth areas like sky and smears the edges of text.
JPEG, WebP or PNG
JPEG and WebP are lossy: they throw away detail you are unlikely to notice. PNG is lossless and keeps every pixel. In Google's comparison, WebP files were 25 to 34% smaller than JPEG at the same visual quality, and WebP can keep transparency. Some older programs and upload forms still accept only JPEG, so pick JPEG when you do not know where the file will end up.
Why a PNG screenshot may not shrink
Screenshots are mostly flat color and sharp text, which PNG already stores compactly. Saved as JPEG, they pick up noise around letters and can end up larger. Re-saving a PNG as PNG in the browser does not run the extra optimization that desktop tools apply, so it rarely gets smaller. Try WebP or a smaller max width. If nothing beats the original, the tool returns the original.
Hitting a target size
Enter a size in KB, such as 200 for a form that rejects anything larger. The tool encodes the image at up to eight quality levels between 5 and the slider value and keeps the highest that fits. If even the lowest quality is too big, the image has too many pixels: set a max width such as 1600 px.
Fewer pixels beat lower quality
Halving the width of a 4000 × 3000 photo leaves a quarter of the pixels, which usually saves more than any quality setting. Max width and height only shrink images, never enlarge them. For exact dimensions use the Image Resizer. To change between PNG, JPEG and WebP without these size controls, use the Image Converter.
Metadata and privacy
Images are processed on your device and never uploaded. Compressed files carry no EXIF data such as GPS location or camera model. The photo's rotation is applied to the pixels first, so it stays upright.