Markdown Viewer Editor

Markdown editor with WYSIWYG, live preview, split view, KaTeX math, Mermaid diagrams. Git sync, and export to PDF/Word/EPUB/LaTeX.

Markdown Viewer Editor is a powerful Markdown editor inspired by Typora. It offers a seamless writing experience across iPhone, iPad, and Mac with four flexible editing modes — WYSIWYG, Source, Preview, and Split View.

FOUR EDITING MODES • WYSIWYG — Rich-text editing that renders Markdown as you type, just like Typora • Source Mode — Raw Markdown editing with line numbers and synchronized scrolling • Live Preview — High-quality rendered preview with full Markdown support • Split View — Source code and preview side by side for instant feedback

FULL MARKDOWN & BEYOND • Complete Markdown syntax: headings, lists, tables, code blocks with syntax highlighting, links, images, and more • KaTeX math equations — inline ($...$) and block ($$...$$) formulas • Mermaid diagrams — flowcharts, sequence diagrams, Gantt charts • GitHub Alerts, footnotes, YAML front matter, [TOC] generation • Highlight (==text==), superscript (^text^), subscript (text) • HTML tags: iframe, video, audio, details, kbd, mark, and more

WRITING FOCUS • Focus Mode — dims non-active lines so you can concentrate on your writing • Typewriter Mode — keeps the current line centered on screen • Full-screen mode for distraction-free writing • Auto-pairing for brackets, quotes, and Markdown markers

AI-POWERED WRITING ASSISTANT • Continue writing, summarize, translate, polish, or explain selected text • Custom prompts for any AI instruction • Real-time streaming output

POWERFUL FILE MANAGEMENT • Folder browser with recursive directory tree • Multi-tab editing — work on several documents at once • Quick Open (Ctrl+P / Cmd+P) — fuzzy search across your workspace • Auto-save with 3-second debounce • Draft recovery after unexpected crashes • Recent files on the welcome screen

IMAGE HANDLING • Paste images from clipboard — auto-saved and inserted as Markdown reference • Drag & drop image insertion • Configurable image storage directory and path mode (relative / absolute) • Image upload to image hosting via PicGo or custom shell command

FIND & REPLACE • Find and replace with regex and case-sensitivity options • Search across all open documents

EXPORT & IMPORT • Export to PDF, HTML (GitHub-styled), Word (.docx), LaTeX (.tex), EPUB, and PNG long image • Import from Word (.docx) to Markdown • Custom export commands with {input}/{output} placeholders • Mermaid diagram export to PNG

VERSION CONTROL & CLOUD SYNC • Git commit history viewer for each file • Auto Git sync — commit, pull --rebase, and push on save • Real-time sync status in the status bar • External file change detection with reload prompt

THEMES & CUSTOMIZATION • 12 built-in themes — 6 light + 6 dark (GitHub, Dracula, Monokai, Nord, Tokyo Night, and more) • Dark / Light mode — follow system or toggle manually • Custom CSS themes for preview styling • Adjustable font size and zoom level • Customizable keyboard shortcuts with visual editor

OUTLINE & STATUS BAR • Document outline panel — auto-extracted heading structure with click-to-navigate • Status bar — line/column position, word count, character count, line count

PLUGIN SYSTEM • Shell script preprocessors — configure a plugin directory and run .sh/.py/.js pipelines

LOCALIZATION • English and more interface — switch in settings