ConvertiZen

Convert HTML to Markdown Without Uploading Your File

Worried about uploading sensitive HTML files to an online service? ConvertiZen converts HTML to Markdown entirely inside your browser — nothing is ever sent over the internet. This is ideal for confidential documents: contracts, medical records, financial statements, and anything else you'd rather keep private.

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Accueil › HTML → Markdown › Convert HTML to Markdown Without Uploading Your File

How client-side conversion works

Traditional online converters upload your HTML file to their servers, process it there, then send back a Markdown file. Your data crosses the internet twice and sits on someone else's machine in the middle. ConvertiZen uses WebAssembly to run the entire conversion pipeline locally in your browser. The HTML→Markdown process happens on your CPU, using your RAM. Our server never sees a single byte of your file.

FAQ

Is my HTML file uploaded to convert it to Markdown?

Never. WebAssembly converts it locally in your browser.

Is this safe for confidential HTML files?

Yes. Nothing leaves your device during or after conversion.

Can ConvertiZen access my HTML file content?

No. We have no technical ability to see your files — they never reach our servers.

What happens to my HTML file after conversion?

Nothing. It stays in your browser memory, which is cleared when you close the tab.

Is this GDPR-compliant?

Yes. No personal data or file content is processed on our servers.