Image Compressor
Compress images directly in your browser without uploading them to a server.
Compression Result
DownloadHow to Compress an Image
Choose an image, select the output format and quality, then select Compress Image.
Choose the output before adjusting quality
This tool accepts PNG, JPEG, and WebP but exports only JPEG or WebP. JPEG turns transparent input areas white; choose WebP when the output needs transparency. Quality 80 is an encoder setting, not 80% of the original visual quality.
Compare both sizes and the preview
Re-encoding keeps the pixel dimensions but may soften fine detail or omit source metadata. An already optimized image can produce a larger output; the size-reduction indicator stops at 0% even then, so compare the displayed original and output sizes as well as the preview before replacing the original.
Frequently Asked Questions
Where does image compression run?
Image compression runs with Canvas in your browser. Your file is not sent to or stored on a server.
Can I compress PNG images?
Yes. PNG images can be re-encoded as JPEG or WebP, although the result is not always smaller. Choose WebP to preserve transparency.