What is a HTML file?
HTML — web page
What is it?
HTML is the language that structures web pages. It doesn't describe appearance but meaning: this is a heading, this is a paragraph, this is a link, this is an image. It's the browser that then translates this structure into what you see on screen.
This separation is fundamental: HTML carries the content, CSS dresses it up, JavaScript animates it. An HTML file on its own therefore looks plain — and remains perfectly functional.
History & origin
Tim Berners-Lee invented HTML at CERN in the early 1990s, alongside the web itself. The earliest versions ran to just a few pages.
After an attempt to lock it down with XHTML, the format resumed its continuous evolution with HTML5. There is no longer a fixed version today: the standard is a "living standard", updated on an ongoing basis by the WHATWG.
Why it is useful
It's the format of the web: universal, open, readable on any device, with no software to install.
Written properly, it's accessible — screen readers rely on its structure — and indexable by search engines. It supports text, images, tables, forms, audio, and video.
Limits & drawbacks
An HTML file isn't a self-contained document: it references images, stylesheets, fonts. Send it on its own and it will arrive stripped bare.
How it renders depends on the browser and screen size: nothing about it is fixed, which makes it unsuitable for printing or archiving as-is.
Practical tips
To share or print a page, convert it to PDF: this locks in the layout and bundles everything into a single file.
To reuse the content in a word processor, go through DOCX; to keep just the words, use TXT. Bear in mind that a page heavy with scripts always converts less cleanly than a simple one: content generated at runtime doesn't necessarily carry over into the result.
Convert your HTML in seconds, on our secure servers in France.
Convert a HTML