I Built a Free Markdown to HTML Converter (Because Dillinger Stores Your Content on Their Servers)

Description and use

A browser‑based Markdown to HTML converter that keeps data local, offering instant preview, download, copy, undo/redo, theme toggle, and table support.

Problem

Users need to convert Markdown to HTML without sending their content to external servers, as free online editors like Dillinger store documents on their servers.

Outcome

The converter delivers privacy‑first Markdown to HTML conversion with instant preview, download, copy, undo/redo, theme toggle, and table support, all without server interaction.

Workflow

• Open the converter URL in a browser
• Write Markdown in the left pane
• View rendered HTML in the right pane
• Use copy-to-clipboard or download button to obtain HTML
• Optionally toggle light/dark preview themes
• Undo/redo edits with Ctrl+Z/Ctrl+Y

Evidence

The converter is entirely client-side JavaScript. There's no server, no database, no analytics. Your Markdown stays on your machine.

Source

Your content never leaves your browser

Source