MarkText vs Zettlr

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.

Zettlr is a writing workbench for projects that can run from early notes through journal submissions and book manuscripts. It began as a Markdown editor for academic researchers and is also used by students, journalists, authors, and others writing substantial amounts. The app works offline on Windows, macOS, and Linux, and files stay on the user's computer. It supports standard Markdown and exports to formats supported by Pandoc. Citation manager support includes Zotero, JabRef, and Juris-M, with more than 9,000 citation styles. Note features include IDs, wiki-style internal links, related files, navigation, and graph view. Pandoc-powered profiles can apply templates to papers or prepare presentations for Beamer, reveal.js, or PowerPoint. Zettlr also renders LaTeX equations and Mermaid charts and supports extensive settings and custom CSS. It is free and open source, with no payment required to download. The maker says app data is not collected and update checks can be disabled. Older releases are unsupported; nightly releases may contain many bugs.