mdEdit

mdEdit is a Markdown editor and viewer that runs directly in your Chrome browser. Create and edit files without external editors.

You can create and edit Markdown files without needing heavy external editors like VSCode or Zed. It also serves as a fast and beautiful viewer for your local Markdown files. - Edit seamlessly with styles applied in real-time. - Choose from 4 beautiful built-in themes for the editing interface, or fully customize it using your own CSS. - Easily convert and export your documents to HTML or PDF. ✨ Major New Features Source Code Mode (Raw Markdown Editor) Added a dedicated Raw Markdown Source Code editor mode. Easily switch between real-time WYSIWYG ("Rich Mode") and raw Markdown code editing ("Source Mode") with a single click. Includes monospace typography, line numbering, and smart Tab key indentation (inserts 2 spaces). Auto-Save Drafts & Temporary Save Management Automatically records editor changes to local storage (chrome.storage.local) while typing, so unsaved drafts are never lost on tab closes or reloads. Includes a header timestamp badge, a manual Temp Save button, and a New / Clear button to quickly start a fresh document. Automatic Hard Line Breaks (remark-breaks) Integrated remark-breaks so single newlines (\n) in Source Mode or standard editing are automatically rendered as hard line breaks (<br>) without requiring two trailing spaces (). Intuitive "Normal Text" Formatting Action Button Added a Normal Text (Type icon) button next to Heading options (H1/H2/H3) in the toolbar and context menu to instantly reset headings back to plain paragraphs. 🐞 Bug Fixes & Improvements Source Mode Full-Width Layout Fixed centering margins in Source Mode so line numbers and the code editor extend 100% full-width right next to the left sidebar. Table Formatting Clearing Enhanced table format clearing so selecting table cells or empty tables and clicking Normal Text converts the table into plain text paragraphs. What's new in version 1.3.0: [✨ New Features & Layout Improvements] • Optimized Sidebar Layout: Table of Contents (TOC) is now on the left by default for easier document navigation, while Settings are on the right. Easily toggle placement anytime in Settings. • Raw Source Code Editor Mode: Switch seamlessly between real-time WYSIWYG editing and raw Markdown code editing with a single click in the header. • Direct File Drag & Drop: Drag and drop any .md / .markdown file directly onto the editor window to open and view it instantly. • Natural Hard Line Breaks: Integrated automatic line break rendering (remark-breaks) so single Enter line breaks are reflected as line breaks without requiring trailing spaces. [🛡️ Safety & Data Protection] • Empty File Overwrite Warning: Added a confirmation alert before saving an empty editor over an existing file to prevent accidental data loss. • Isolated Draft Auto-Save: Background draft saving works exclusively in browser storage, ensuring local files on your disk are never overwritten without explicit user action. [🐞 Bug Fixes & Improvements] • HTML Export Background Fix: Enforced uniform full-screen background styling for standalone HTML exports across all custom presets. • Table Clearing Enhancements: One-click conversion of complex or multi-cell table selections back to plain standard text paragraphs. • Full-Width Source Mode Alignment: Removed layout margins in Source Mode so line numbers sit flush against the sidebar.