MDer: Markdown Reader

A focused, book-like home for Markdown. Read, write, organize, import, and export standard .md files while document content stays on your device.

Give every Markdown file a calm, native home on iPhone and iPad. MDer combines a focused editor with a genuinely separate, book-like reading experience.

WRITE WITH FOCUS Edit Markdown in a clean, responsive workspace with useful formatting shortcuts, word counts, reading time, and automatic local saving.

READ LIKE A BOOK Switch into a dedicated reading mode—not a cramped preview. Enjoy carefully tuned serif typography, comfortable line length, generous spacing, and Paper, Sepia, or Night themes.

OPEN FORMAT, YOUR CONTROL • Import standard .md and plain-text files • Export and share clean Markdown through the iOS share sheet • Search titles and document contents • Favorite, pin, duplicate, and organize notes • Keep document content locally without creating an account • Use a layout designed for both iPhone and iPad

PRIVATE DOCUMENTS MDer does not include an AI service and does not upload document titles or content to an AI provider. Document content remains on your device unless you explicitly choose to export it using the iOS share sheet.

MDer Free displays a Google AdMob banner. Advertising data is handled separately from document content and is described in the app privacy label and privacy policy.