Image Format Comparison

Lossless optimisation
Image Size Format Code
852.1 kB JPEG
736.3 kB JPEG jpegtran -copy all -optimize input.jpg > output.jpg

Using jpegtran from mozjpeg

703.9 kB JPEG jpegtran -copy none -optimize input.jpg > output.jpg

Using jpegtran from mozjpeg

703.9 kB JPEG jpegtran -copy none -optimize -progressive input.jpg > output.jpg

Using jpegtran from mozjpeg

707.5 kB JPEG jpegtran -copy none -optimize -progressive input.jpg > output.jpg

Using jpegtran from the Independent JPEG Group

741.6 kB JPEG trimage -f input.jpg

Using Trimage

317.6 kB WebP cwebp input.jpg -o output.webp

Using cwebp

Lossy optimisation
363.3 kB JPEG imgmin input.jpg output.jpg

Using imgmin

366.4 kB JPEG cjpeg-dssim jpegoptim input.jpg

Using cjpeg-dssim

Page and photo by:
Walter Ebert