StackEdit

StackEdit is an in-browser Markdown editor designed for writers, developers, and content creators who need a lightweight alternative to desktop applications. Built on PageDown, the same Markdown library powering Stack Overflow, it offers syntax highlighting and a distraction-free writing environment accessible from any device with a web browser. The tool supports multiple Markdown flavors including GitHub Flavored Markdown and CommonMark, with additional capabilities for LaTeX mathematical expressions and UML diagrams. Users can synchronize documents with Google Drive, Dropbox, and GitHub, or publish directly to blogging platforms like WordPress and Blogger. StackEdit enables offline writing, collaborative editing with real-time change merging, and inline commenting, making it suitable for both solo projects and team workflows. The product is open-source and available for free.