What are HTML files and how to open them

Are you having problems opening a HTML file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a HTML file?

HTML files have multiple uses, and HyperText Markup Language Document is one of them. Read more about the others further down the page.

HyperText Markup Language Document

HTML is an acronym for HyperText Markup Language. HTML is used to create web pages, and it is the foundation of all website content. HTML documents are made up of tags that tell browsers how to display text, images, videos, and other media on a page.

The user does not see the HTML code itself. Instead, their web browser reads the HTML and builds the web page layout displayed to the user based on the HTML content. A website visitor can see the contents of the HTML code by selecting the "View" and "Page Source" options from the menu of their Internet browser.

HTML files may also use the HTM file extension.

How to open HTML files

We have identified 8 HTML openers that are compatible with this specific type of HTML file.

Programs that open HyperText Markup Language Document files

Google ChromeGoogle ChromeVerified
Bitberry File OpenerBitberry File OpenerVerified
Microsoft EdgeMicrosoft EdgeVerified

Last updated: November 30, 2022

All known file formats using extension .HTML

While HyperText Markup Language Document is a popular type of HTML-file, we know of 4 different uses of the .HTML file extension. Different software may use files with the same extension for different types of data.

Stylus Labs Write Document

We know that one HTML format is Stylus Labs Write Document. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

HTML opener for Windows

We have identified one HTML opener that is compatible with this specific type of HTML file.


More file formats using the HTML extension

Through our research of HTML files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • IBrowse Hotlist / Bookmark
  • Netscape Bookmark-file-1 Format

Various apps that use files with this extension

These apps are known to open certain types of HTML files. Remember, different programs may use HTML files for different purposes, so you may need to try out a few of them to be able to open your specific file.

FlashPeak SlimBrowserFlashPeak SlimBrowserVerified CalcUser submitted WriterUser submitted
LibreOfficeLibreOfficeUser submitted
Swing BrowserSwing BrowserUser submitted
SafeZoneSafeZoneUser submitted
Comodo DragonComodo DragonUser submitted
ChromiumChromiumUser submitted
MaxthonMaxthonUser submitted
LibreOffice CalcLibreOffice CalcUser submitted

Help us help others helps thousands of users every day, and we would love to hear from you if you have additional information about HTML file formats, example files, or compatible programs. Please use the links below or email us at to discuss further.