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HomeHTM vs HTML
.htm
.html

HTM vs HTML

Compare HyperText Markup Language and HyperText Markup Language formats — understand the key differences and when to use each

Format Overview

HTM

HyperText Markup Language

HyperText Markup Language (.htm) is a document file format.

.htmdocument

HTML

HyperText Markup Language

HyperText Markup Language (.html) is a document file format.

.htmldocument

HTM vs HTML: Feature Comparison

FeatureHTMHTML
Full NameHyperText Markup LanguageHyperText Markup Language
File Extension.htm.html
Categorydocumentdocument
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use HTM vs HTML

Use HTM when you need:

  • •Files in HyperText Markup Language format for maximum compatibility
  • •Industry-standard document format support
  • •Wide software and platform compatibility

Use HTML when you need:

  • •Files in HyperText Markup Language format for specific workflows
  • •Optimized document format features
  • •Modern format advantages and smaller file sizes

Convert Between Them

HTM HTMLHTML HTM
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Learn More About These Formats

HTM Converter HTML Converter

Frequently Asked Questions

What is the difference between HTM and HTML?
HTM (HyperText Markup Language) and HTML (HyperText Markup Language) are both document file formats. HTM files use the .htm extension while HTML uses .html. They differ in compression, quality, compatibility, and intended use cases.
Can I convert HTM to HTML for free?
Yes! Convert999 lets you convert HTM to HTML completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.
Which is better, HTM or HTML?
It depends on your use case. HTM (HyperText Markup Language) may be better for certain workflows, while HTML (HyperText Markup Language) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.
Is it safe to convert files on Convert999?
Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

HTM Converter

Convert from HTM

HTML Converter

Convert from HTML

File Tools

Compress, resize, merge

Convert to HTM

All sources → HTM

Convert to HTML

All sources → HTML

Format Statistics

Trends & data 2025

More Format Comparisons

JPGvsPNGPNGvsWEBPJPGvsWEBPSVGvsPNGHEICvsJPGBMPvsJPGTIFFvsJPGGIFvsPNG