Markdown Editor & Viewer with Live Preview Online | Phoenix Code
A Markdown Editor, Viewer, and Preview in One
Markdown is the plain-text format behind README files, documentation, notes, and blogs. A good Markdown editor shows you the formatted result while you type — Phoenix Code does exactly that, with a live preview that renders your document as you write.
It is also a full Markdown viewer. Open any .md file and switch to reader mode to see it as a clean, formatted document — great for reading a README or reviewing docs without editing them.
And because Phoenix Code is a real code editor, you get more than a throwaway markdown preview tool: syntax highlighting, multi-file projects, Git integration, Claude Code AI assistance, and PDF export are all built in.
Everything You Need to Write Markdown
From quick notes to full documentation — write, preview, and publish Markdown in one place.
Live Markdown Preview
Write Markdown and see the formatted document update instantly beside it — no save or refresh needed.
Pro<br>Document Editing for Markdown
Edit directly in the rendered document, like Word or Google Docs, while keeping clean Markdown underneath.
Claude Code AI Assistant
Draft, restructure, summarize, and polish Markdown with Claude Code. Use your existing login/key — your documents stay local.
Tables, Code Blocks & Diagrams
Create GitHub-style tables, highlighted code blocks, and diagrams that render directly in preview.
Paste & Add Images Easily
Paste, upload, or link images without leaving your document to host files elsewhere. Phoenix Code can host uploaded images for you.
Print & Export to PDF
Turn rendered Markdown into a polished PDF, ready to share, submit, archive, or print.
AI That Writes Markdown With You
Phoenix Code includes built-in AI powered by Claude Code. Ask it to draft a README, restructure a document, tidy tables, fix grammar, or summarize long docs — right inside your Markdown editor.
Bring your existing Claude Code subscription or a compatible login/key — no separate AI plan needed. Your documents stay on your machine.
Free Markdown Editing, Forever
The core Markdown experience is free and open source. Pro adds visual editing on top.
Free
Markdown editing with syntax highlighting, live preview, reader mode, images, tables, code blocks, diagrams, and PDF export — in your browser or on desktop. Free forever.
Phoenix Pro
WYSIWYG Markdown editing like Word or Google Docs — write visually while Phoenix Code maintains clean Markdown underneath. Includes AI assistance and visual web editing.
See pricing
Why Phoenix Code for Markdown?
Most online markdown editors are throwaway textboxes: paste, preview, lose your work. Phoenix Code is a real editor — open whole folders, edit multiple documents, track changes with built-in Git, and keep working offline with the free desktop app.
Your files also stay yours. Nothing is uploaded to a server — whether you use the browser editor or the desktop app, your Markdown lives on your machine. No account, no sign-up, no lock-in.
How to Open and Edit a Markdown (.md) File
From zero to a formatted document in under a minute.
Open Phoenix Code
Launch the editor instantly at phcode.dev, or install the free desktop app for Windows, macOS, or Linux.
Open or create a .md file
Open the folder with your existing Markdown files, or create a new file with the .md extension.
Edit with live preview
Write Markdown and watch the formatted preview update live. Switch to reader mode to view the finished document.
Export or publish
Print or export the rendered document to PDF, or commit your changes with the built-in Git integration.
Frequently Asked Questions
Is the Markdown editor free?
Yes. Markdown editing with live preview and reader mode is completely free in Phoenix Code, both in the browser at phcode.dev and in the desktop app. The optional WYSIWYG editing mode is part of Phoenix Pro.
How do I open an .md file?
Open phcode.dev in your browser or launch the Phoenix Code desktop app, then open the folder that contains your Markdown file and click the .md file. It opens instantly with syntax highlighting and a live preview — no plugins or setup required.
Can I view a Markdown file without editing it?
Yes. Phoenix Code includes a reader mode that renders your Markdown as a clean, formatted document — ideal for reading README files, notes, and documentation without touching the source text.
Does the editor support tables, code blocks, and diagrams?
Yes. Phoenix Code renders GitHub-style tables, fenced code blocks with syntax highlighting, embedded images, and diagrams in the Markdown preview, so what you see matches what your readers will see.
Is there a WYSIWYG Markdown editor?
Yes. With Phoenix Pro you can edit Markdown visually — like writing in Word or Google Docs — while Phoenix Code keeps the underlying Markdown text clean. Raw editing with live preview stays free forever.
Does the Markdown editor work online...