MarkText vs StackEdit

MarkText is a free, open-source desktop Markdown editor that displays formatted text as you write. It offers WYSIWYG preview and source-code editing, plus focus and typewriter modes. Writing features include tables, KaTeX math, diagrams, footnotes, code highlighting, and YAML, TOML, and JSON front matter. Listed diagram tools include Mermaid, Vega, and Vega-Lite. The editor has 33 light and dark themes, with CSS customization available. Documents can be exported as PDF or self-contained HTML, and local files are supported. MarkText runs on Linux, macOS, and Windows. Installation notes require macOS 11 or later and Windows 10 or 11, and provide arm64 and x64 installers for those systems. Homebrew, Chocolatey, and Winget are also listed as installation options. The homepage says MarkText needs no account and has no tracking. It is released under the MIT License, has no subscription, and is described as a volunteer-built project.

StackEdit is an in-browser Markdown editor for writing, formatting and publishing documents. It highlights Markdown syntax and offers formatting controls alongside a live preview whose scrolling follows the editor. The site says it remains accessible for offline writing, and it supports local files as well as cloud sync with Google Drive, Dropbox and GitHub. Writers can share collaborative workspaces; when two collaborators edit the same file simultaneously, StackEdit merges their changes. Files also support inline comments and embedded discussions. The editor handles Markdown Extra, GitHub Flavored Markdown and CommonMark, with features configurable. It can publish blog posts to Blogger, WordPress and Zendesk, using Markdown, HTML or Handlebars-template formatting. Other supported content includes LaTeX mathematical expressions, sequence diagrams, flow charts, musical scores in ABC notation and emoji markup. Export formats are Markdown, HTML and PDF. StackEdit is listed as free and open source under an Apache License. Supported platforms include the web, a Chrome extension and self-hosting; the maker’s site displays a 2013–2019 copyright range.