무료 이미지 압축기 - 품질 손실 없이 파일 크기 축소

proper image compression has minimal impact on visual quality, often being barely noticeable while significantly reducing file size. our intelligent compression algorithm finds the optimal balance between file size and image quality. higher compression levels may cause slight quality loss but remain perfectly acceptable for most uses like web and social media.

compression effectiveness varies by format. jpg photos can typically compress 50-80% without noticeable quality loss. png graphics and transparent images usually compress 30-60%. webp, a modern format, is generally 25-35% smaller than jpg and 26-50% smaller than png at equivalent quality, making it ideal for web use.

no. our image compression tool runs entirely in your browser, with all processing completed locally. no images are uploaded to any servers. this means faster processing and better protection for your privacy and data security.

yes, our tool supports batch compression. you can upload and compress multiple images simultaneously, with the same compression settings applied to each. after processing, you can download images individually or choose to download all compressed images at once (packaged as a zip file).

yes, usage rights for compressed images depend on the copyright status of the original images. if you own the copyright to the original image or have obtained permission to use it, then the compressed image can also be used commercially. our tool does not add any watermarks or usage restrictions to images.