Browse Tools Top 100
HTML HTM
Free online converter

Convert HTML to HTM

Convert now
HTML to HTM converterFREE
Drop a .HTML file here
or pick one - we convert it to .HTM and give you the file to download

On this page

Tested on macOS, Windows & Linux
Last verified Oct 2026

More free converters

HEIC, PNG, WEBP, MP3 and more - every tool here is free.

Open the toolbox

How to convert HTML to HTM

  1. Add your .HTML file - drop it in the box above or click to browse.
  2. Convert it to .HTM in a few seconds.
  3. Download your new .HTM file.

What to expect

  • The file content is never altered - only the extension changes; all HTML tags and encoding remain intact.
  • If the file is already live on a website, update any internal links referencing the old .html URL or set up a redirect, since search engines index the full URL.
  • Avoid keeping both index.html and index.htm in the same folder; the server will pick one based on its DirectoryIndex setting, which can cause confusion.

Frequently asked questions

Is there any difference between .html and .htm files?
No - they are the same plain-text format. The only difference is the number of characters in the extension, which is a historical artifact from early DOS file-naming rules.
Do I need conversion software to change .html to .htm?
No. Renaming the file in File Explorer, Finder, or a terminal is all that is required.
Will my web page still work after renaming?
Yes, as long as you update any links on your site that referenced the old .html filename and, if needed, set up a server redirect.
Can I rename .htm back to .html?
Yes - the process is identical in reverse and the file content is never affected.
Learn about the formats: .HTML · .HTM
Programs that convert HTML: Adobe InDesign · Adobe Contribute · Calibre · iStonSoft ePub Converter · Microsoft Word · Adobe ColdFusion Builder · Microsoft Windows NotePad · Adobe ColdFusion