http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=Gwtar 2026-05-11T06:28:09Z Revision history for this page on the wiki MediaWiki 1.19.2 http://fileformats.archiveteam.org/index.php?title=Gwtar&diff=51428&oldid=prev 2026-01-27T06:52:42Z

<p>Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Archiving |subcat2=Hypermedia |extensions={{ext|gwtar.html}} |mimetypes={{mimetype|text/html}}, {{mimetype|x-gwtar}} |released=2026...&quot;</p> <p><b>New page</b></p><div>{{FormatInfo<br /> |formattype=electronic<br /> |subcat=Archiving<br /> |subcat2=Hypermedia<br /> |extensions={{ext|gwtar.html}}<br /> |mimetypes={{mimetype|text/html}}, {{mimetype|x-gwtar}}<br /> |released=2026<br /> }}<br /> '''Gwtar''' (pronounced like &quot;guitar&quot;) is a format for storing a full webpage in a single HTML file, developed in 2026 by Gwern Branwen and Said Achmiz.<br /> <br /> The format was developed as a convenient solution for archiving webpages, which would satisfy three criteria:<br /> * the full contents of the webpage, including images, scripts, etc. must be stored locally;<br /> * the webpage and all its assets must be stored as a single file;<br /> * users can browse the archived webpage without having to first download the entire file (parts of the file with webpage assets are downloaded as needed).<br /> <br /> A Gwtar file consists of three parts:<br /> * the header - a combination of [[HTML]], [[JavaScript]], and [[JSON]], which contains the actual HTML markup, as well as scripts which handle piece-by-piece download of the rest of the file; <br /> * all of the webpage resources, stored in [[Tape Archive|tarball]] format;<br /> * any other arbitary data (e.g. metadata, [[Security#Electronic signatures|electronic signature]]s, [[Error detection and correction|error correction]] codes). <br /> <br /> == Specifications ==<br /> <br /> * [https://gwern.net/gwtar Gwtar: a static efficient single-file HTML format], from gwern.net<br /> <br /> [[Category:Web]]</div>

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