>Is designed for high-fidelity still photos. (The primary way both JPEG2000 and the video codec-based image formats improve on JPEG is that they have non-awful but still visible artifacts at compression ratios where JPEG has very awful and very visible artifacts.
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* yt-dlp: Downloads videos and audio. Supports a ton of sites.
https://github.com/yt-dlp/yt-dlp
* gallery-dl: Downloads images including entire galleries and accounts.