JPG to JXL is lossless, and will save around 20% JXL to JPG is lossless as in a ... | Hacker News

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jbverschoor on June 18, 2025 | parent | context | favorite | on: Why JPEGs still rule the web (2024)

JPG to JXL is lossless, and will save around 20%

JXL to JPG is lossless as in a bit-for-bit identical file can be generated

adgjlsfhk1 on June 18, 2025 [–]

> JXL to JPG is lossless

only if you got the JXL from JPG.

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