Gwtar: a static efficient single-file HTML format
Hacker News
February 15, 2026
Gwtar is a new polyglot HTML archival format which provides a single, self-contained, HTML file which still can be efficiently lazy-loaded by a web browser. This is done by a header’s JavaScript making HTTP range requests. It is used on Gwern.net to serve large HTML archives.
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Originally published on Hacker News on 2/15/2026