Compressly

Compressly is an image optimizer featuring resizing, quality adjustment and 6 different output image formats producing up to 150 image variations with before/after comparison to the original image. Application provides stats, history and session restoration. Import image from Gallery or Files, supports RAW, HDR and more. Output image formats are JPEG, HEIF, JPEG XL, AVIF, WEBP and HEIC. Compressly is available on the App Store for FREE.

All images in this article are copyrighted. Some original images were converted to AVIF in high quality due to incompability with Web or large file sizes.

Seagull in Venice

Original JPEG 10.3 MB • Compressed AVIF 254 KB, 41 times smaller

Tree in the sky

Original HEIC 3.6 MB • Compressed AVIF 262 KB, 13.5 times smaller

Best performed codec was JPEG XL with 110 KB file size

Flower

Original JPEG 2.6 MB • Compressed AVIF 29 KB, 88 times smaller

Sunset in Ölüdeniz

Original JPEG 13 MB • Compressed AVIF 281 KB, 46 times smaller

Best performed codec was HEIC with 71 KB file size

Flower

Original HEIC 2.3 MB • Compressed AVIF 61 KB, 38 times smaller

Best performed codec was AVIF (low) with 35 KB file size

Sunset on the beach

Original HEIC 1.2 MB • Compressed AVIF 37 KB, 32 times smaller

Best performed codec was HEIC with 33 KB file size

Cat in the garden

Original JPEG 2.4 MB • Compressed AVIF 47 KB, 50 times smaller

Best performed codec was HEIC with 46 KB file size

Moon at the night

Original DNG 9.9 MB • Compressed JPEG XL 66 KB, 149 times smaller

Sky at the sunset

Original DNG 10.2 MB • Compressed AVIF 35 KB, 294 times smaller

Best performed codec was AVIF (low) with 10 KB file size (1027x)