No Upload. No Server. 100% Browser-Based.
Every other Markdown-to-PDF converter uploads your files to their servers. MarkdownToPDF doesn't. Your documents never leave your device — not even for a millisecond.
Even sensitive documents render safely in your browser.
# CONFIDENTIAL — Internal Memo **To:** Engineering Team **From:** CTO **Date:** February 2026 ## Q1 Architecture Changes The following changes are **not for public disclosure**: 1. Migrating user auth to `OAuth 2.1` 2. New encryption keys rotating every **90 days** 3. Database sharding for the `users` table ## Budget Allocation | Department | Q1 Budget | |-------------|-------------| | Engineering | $1,200,000 | | Security | $450,000 | | DevOps | $380,000 | > This document never leaves your browser.
To: Engineering Team From: CTO Date: February 2026
The following changes are not for public disclosure:
OAuth 2.1users table| Department | Q1 Budget |
|---|---|
| Engineering | $1,200,000 |
| Security | $450,000 |
| DevOps | $380,000 |
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MarkdownToPDF is a static website. There is no backend server, no API, no database. The entire application runs as HTML, CSS, and JavaScript in your browser.
Your markdown content, images, and exported PDFs never leave your device. Not even temporarily. There is no upload endpoint to call.
Once the page is loaded, you can disconnect from the internet. Editing, preview, and PDF export all work completely offline.
Your content is saved in your browser's localStorage. Images are stored in IndexedDB. Both live on your device and are never synced anywhere.
We never read, analyze, or store what you type. Your document content exists only in your browser's memory and local storage.
The app uses Next.js static export (output: "export"). There are no API routes, no server-side rendering, no server functions. Verify this yourself in the network tab.
Internal documentation, board materials, M&A documents, and proprietary technical specs. Meets compliance requirements that prohibit uploading data to third-party servers.
Client contracts, NDAs, legal memos, and case documentation. Attorney-client privilege demands that documents stay on controlled devices.
Medical documentation, research data, and patient-adjacent materials. HIPAA-conscious teams need tools that don't transmit PHI.
Unpublished research, exam materials, grant proposals, and thesis drafts. Protect your intellectual property before publication.
Open your browser's developer tools (F12), go to the Network tab, and start converting. You'll see zero requests containing your document content.
Turn off WiFi or enable airplane mode after loading the page. Everything still works — editing, preview, and PDF export.
View the page source or check the JavaScript bundles. There are no fetch/XHR calls to any backend API for document processing.
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Start ConvertingBuilt by Yogendra Singh