About Markdown Editor
Product Documentation, Architecture & Offline Privacy Verification
What It Does
Split-screen live markdown editor with sanitized preview, table formatting, and instant file download.
How It Works
Key Features
- Formatting Toolbar: Easily format your text with bold, italic, code blocks, lists, and headings.
- Live Split Preview: Type or paste on the left, and watch the beautifully formatted result appear instantly on the right.
- Autosave: Your progress is saved locally to your browser, so you never lose your work if you accidentally refresh.
Limitations & Compatibility
Frequently Asked Questions
Is my Markdown uploaded to a server?
No. All editing, parsing, rendering, and formatting is executed strictly locally in your browser. We have zero backend markdown processing.
Can I view and edit local .md files?
Yes. You can use the "Import .md" button to select a local Markdown file. It will be loaded securely into your browser memory.
Is it safe to preview untrusted Markdown?
Yes. We run all parsed Markdown through an enterprise-grade HTML sanitizer (DOMPurify) before it is rendered on screen. It blocks all malicious scripts and dangerous tags.
How is frontmatter handled?
If your Markdown file begins with YAML frontmatter (metadata separated by ---), we safely extract it and display it in a distinct metadata block at the top of the preview.
Ready to use Markdown Editor?
100% private, instant offline processing directly in your browser with zero data retention.
