Zettlr Markdown Editor

Zettlr is a free and open-source Markdown editor designed for researchers, journalists, and novelists, providing academic writing tools, citation management, and Zettelkasten note-taking support. Created by Hendrik Erz in 2018, with over 11,000 stars as of 2026. Key features include: Pandoc integration (export documents to PDF, HTML, DOCX, ODT, LaTeX, and over 40 formats via Pandoc with configurable templates and citation processing), citation management (integration with Zotero, JabRef, and BibLaTeX for inserting citations and generating bibliographies with CSL styles), Zettelkasten methodology (support for atomic notes, unique note IDs, bidirectional linking via wiki-links, and backlink discovery), file management (sidebar file browser with global search across all files, custom attachments directory, and file link navigation), writing goals (configurable word count or character count targets per file with progress indicators), code highlighting (syntax highlighting for over 200 languages via Prism.js in code blocks), table editor (Markdown table editor with keyboard navigation and column alignment), themes (built-in dark and light themes with customizable syntax highlighting and LaTeX preview), snippets (user-defined text expansion for frequently used phrases), project management (define projects as directories with export settings and batch export to generate complete documents from multiple Markdown files), presentations (export to reveal.js presentations with slide separators), and cross-platform (Windows, macOS, and Linux).