Free · No signup · Files stay on your device
Image Compressor.
Reduce image file size for websites, email and forms. Choose quality and format, then compare the actual result before downloading.
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How to use Image Compressor
- Choose a PNG, JPEG or WebP image.
- Choose an output format and adjust quality or maximum dimensions.
- Check the actual file-size change and download.
Limits and useful details
One PNG, JPEG or WebP image at a time, up to 20 MB and 32 megapixels, with an 8,192-pixel maximum side. Animated images, HEIC and SVG are not supported. Outputs are re-encoded: animation and most metadata are removed. JPEG replaces transparency with white.
The file contents are processed locally. Sharing this tool shares its public page link, never your selected file. Always inspect your download before using or sharing it.
Frequently asked questions
Will the compressed image always be smaller?
No. A well-optimized source or a different output format can produce a larger file. The result shows the actual size change so you can compare and adjust quality, format or dimensions.
Is compression lossless?
JPEG and WebP encoding can discard detail. PNG output is lossless for the rendered pixels, but changing dimensions still changes the image. Keep the original for editing.
Is this image tool free?
Yes. Processing takes place in your browser without an account or a paid API. Your image is not uploaded to Gencyh.
Which image formats are supported?
PNG, JPEG and WebP input images are supported. You can download PNG, JPEG or WebP where your browser supports encoding it. HEIC, SVG, GIF and animated images are not supported.
