Novus Convert
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Document format

HTML converter

An .html file contains HyperText Markup Language — the tag-based markup that gives structure to every page on the web. Open one in a browser and it renders as a document; open it in an editor and you see the source.

Private for supported formats — processed in your browser

Convert supported files

Runs on your device

Drop HTML files here

Batch files can each use a different output. Nothing uploads for local conversions.

Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.

Where HTML comes from

Tim Berners-Lee sketched HTML in 1991 as part of the original World Wide Web project at CERN, and it matured through W3C recommendations — HTML 4.01 in 1999, HTML5 in 2014. Since 2019 the WHATWG Living Standard has been the single authoritative specification, evolving continuously rather than by numbered versions.

How HTML works

  • An element tree of nested tags with attributes, parsed into a DOM by an error-tolerant algorithm the standard specifies precisely.
  • Structure, style, and behavior are split by design across HTML, CSS, and JavaScript.
  • Character encoding is declared with a meta charset tag; UTF-8 is the standard default.
  • Parsing is forgiving: malformed markup still renders, unlike XML where errors are fatal.

When to use HTML

  • Web pages and web applications.
  • Standalone documentation readable without a server or special software.
  • Rich email bodies (a constrained subset of the language).
  • A durable export target for reports that anyone can open.

Strengths and limitations

Strengths

  • Rendered by every browser on every device made this century.
  • Content is plain text, fully extractable and searchable.
  • Native support for links, images, media, and forms.
  • Editable by hand with nothing but a text editor.

Limitations

  • A single .html file does not bundle its images and stylesheets unless they are inlined.
  • Rendering can differ subtly between browser engines.
  • Forgiving parsing hides authoring mistakes until they bite.

Compatibility

Anything with a browser engine displays HTML, which today means every desktop OS, phone, tablet, and television. Word processors like Word and Google Docs import and export it with mixed layout fidelity, and every code editor treats it as a first-class language.

Metadata travels inside the markup itself: the title element, meta tags, and Open Graph properties used for link previews.

Convert HTML to another format

Convert other formats to HTML