HTML to DOTM Converter
Convert HTML to DOTM online for free. Fast, secure, and high-quality conversion with no sign-up or software required.
Maximum file size is 1GB
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Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.
What is an HTML file?
HTML (HyperText Markup Language) is the standard markup language for documents designed to be displayed in a web browser, defined by the World Wide Web Consortium (W3C) and the WHATWG Living Standard. An HTML file consists of plain text tags that structure content into a Document Object Model (DOM), enabling the embedding of scripts (JavaScript), cascading style sheets (CSS), and multimedia. The format has evolved from SGML-based roots to the current HTML5 specification, which includes semantic elements and APIs for complex web applications.
How to open an HTML file
Operating systems universally support HTML rendering via pre-installed web browsers like Microsoft Edge (Windows), Safari (macOS), or Firefox (Linux). For source code modification, developers utilize specialized editors such as Visual Studio Code, IntelliJ IDEA, or Notepad++. No proprietary software is required, as the format is an open, non-proprietary standard text file.
HTML Technical Info
- Full Name
- HyperText Markup Language
- Developed By
- W3C / WHATWG
- Initial Release
- 1993
- MIME Type
- text/html
What is a DOTM file?
The DOTM format is a Microsoft Word Open XML Macro-Enabled Template introduced with Microsoft Office 2007. Structurally compliant with the ECMA-376 standard, it utilizes ZIP compression to encapsulate XML data structures, separating content, styles, and relationships. Unlike the standard DOTX template, the 'M' designation indicates the explicit authorization to store and execute Visual Basic for Applications (VBA) macros. This distinction is a security feature designed to prevent the accidental execution of malicious scripts in standard templates.
How to open a DOTM file
Microsoft Word (2007 and later) is the primary software for opening and executing macros within DOTM files. On macOS, Microsoft Word for Mac provides equivalent functionality. For non-Microsoft environments, LibreOffice Writer and WPS Office can open DOTM files and render the content, though VBA macro execution compatibility may vary significantly compared to the native Microsoft engine.
DOTM Technical Info
- Full Name
- Word Open XML Macro-Enabled Template
- Developed By
- Microsoft Corporation
- Initial Release
- 2007
- MIME Type
- application/vnd.ms-word.template.macroEnabled.12
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Why RunConvert
The fastest way to convert any file
Purpose-built for speed, privacy, and breadth of format support.
Convert HTML to DOTM in seconds
Every HTML to DOTM conversion runs on our servers, so your device stays fast and the output quality stays intact.
Fast, cloud-powered
No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.
Secure & private
Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.
Free - no account needed
Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.
Developer API
Convert HTML to DOTM via API
Automate HTML to DOTM conversions in three steps: create a job, upload your file, then poll for the result.
# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tag": "html-to-dotm",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "dotm"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.html
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
-H "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.