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Conversion
Format conversion

What is HTML?

HTML / XHTML is the structural language of the web and is literally the content format inside an EPUB; .mhtml packages a page together with its images and styles.

About the format

HTML / XHTML is the structural language of the web and is literally the content format inside an EPUB; .mhtml (MHTML) packs a page together with all its resources (images, CSS) into one file, which is what "save as a single page" produces. XML is the general markup language that formats such as FB2 and OPF are themselves written in. The whole family is tagged text where the tags carry the structure, so how much structure survives a conversion depends on how well the tool understands them.

Extensions.html.htm.xhtml.xml.mhtml
Typical useCaptured web content, EPUB internal content, and a general intermediate representation for other formats.

Converting from HTML

Converting into HTML

Other formats

Converted it — now what do you read it with?

Tide Reader opens TXT and EPUB, detects chapters on import, lays the text out the way you like it, and syncs your reading position across Windows, macOS, iOS and Android. Drop the converted file in and start reading.

Download Tide Reader

TXT and EPUB; local-first reading, with optional cloud sync and WebDAV.