Select images
Choose JPG, PNG or WebP files from your device, or drag them into the compressor.
Compress JPG, PNG and WebP Images Online
Compress single or multiple images without uploading them to a server. Adjust JPG/WebP quality, reduce PNG color variety or try to reach a target file size while keeping the original pixel dimensions.
Browser processing
Dimensions preserved
Actual size comparison
JPG
PNG
WebP
JPG, PNG and WebP image compressor
Choose JPG, PNG or WebP images, or drag and drop them here
Up to 20 files · Maximum 20 MB per file · Original dimensions preservedRe-encodes JPG and WebP without resizing. Lower values usually create smaller files.
Reduces visible RGB color variety while preserving alpha transparency. Savings are not guaranteed.
The tool tries stronger compression without resizing. Some images cannot reach the selected target.
How target mode behaves
JPG/WebP use a quality search. PNG tries progressively smaller color capacities. The closest useful output is returned when the target cannot be reached.
Select one or more supported images to begin.
How to compress an image
Choose a mode
Use direct quality controls or select an approximate target file size for each image.
Review and download
Compare sizes, dimensions and settings, then download each useful compressed result.
How each format is compressed
| Format | Compression method | Important limitation |
|---|---|---|
| JPG / JPEG | Lossy re-encoding at the selected or automatically searched quality | Lower quality can introduce blockiness, ringing and lost detail |
| WebP | Lossy WebP re-encoding while preserving transparency | Browser WebP encoding support is required |
| PNG | RGB color-value reduction followed by PNG re-encoding | Output is not guaranteed to be an indexed PNG, and savings vary |
What changes during compression?
- The decoded pixel width and height remain unchanged.
- JPG and WebP can lose visible detail because they use lossy encoding.
- PNG color reduction can alter gradients, photographs and subtle shades.
- PNG and WebP alpha transparency remains available.
- EXIF, GPS, comments and most other embedded metadata are removed.
- Animated WebP files become a static image of the first visible frame.
- A target file size is an attempt, not a guarantee, when resizing is disabled.
Frequently asked questions
The browser decodes the image and re-encodes it at the selected quality while keeping the same pixel dimensions. Lower quality usually creates a smaller file but can remove visible detail.
The tool reduces the variety of RGB color values while preserving alpha transparency, then re-encodes the result as PNG. Browser encoders do not guarantee indexed PNG output, so savings vary.
No. The tool tries progressively stronger settings without changing image dimensions. Some images cannot reach a very small target unless they are resized or converted to another format.
Yes. This compressor keeps the decoded width and height. It does not silently resize an image to meet a target size.
PNG and WebP transparency is preserved. JPG does not support transparency, but JPG source files do not contain an alpha channel.
No. Compression runs locally in your browser. Humanify.pro does not upload or store the images you select.