LiveSmart Markdown editor & viewer

MarkView

Paste, open or write Markdown and see it beautifully rendered, with slash-command suggestions, diagrams, math, templates and export. Designed and built with AI in a day.

Visit project
Built in
A day
Stack
Next.js, CodeMirror 6, unified / remark, Shiki, Mermaid, KaTeX, Tailwind CSS
AI tools
Claude Code
Year
2026
MarkView: Smart Markdown editor & viewer
Why I built it

Markdown is everywhere (READMEs, docs, notes), but most tools either only preview it or only edit it, and none help you write it. I wanted one place to paste or open any Markdown file, read it properly, and get suggestions while writing a new one.

How it was built
  1. 01

    Open anything

    Paste Markdown, open or drag in .md, .markdown and .txt files, or start from a template: README, docs page, changelog, meeting notes or blog post.

  2. 02

    Read it beautifully

    GitHub-flavored Markdown with callouts, Shiki-highlighted code with copy buttons, Mermaid diagrams, KaTeX math, a front-matter card, outline and light or dark themes.

  3. 03

    Write with suggestions

    A CodeMirror editor with split view and synced scrolling. Type / for slash commands that insert tables, code, callouts, diagrams and more, with heading-link and code-language completion.

  4. 04

    Take it anywhere

    Multiple documents saved privately in the browser, plus export to Markdown, standalone HTML, PDF, or formatted HTML on the clipboard.

What I learned
  • Suggestions while writing matter more than features in a menu.
  • Keeping everything in the browser means no accounts and nothing to leak.