Lightweight Knowledge Base and Feed Reader.
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Markdown Editor GitHub Repositories (2026) · Open Source Tools
Discover the best Markdown Editor open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.
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28 matching projects · updated Nov 13, 2026
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Grav Admin Plugin
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✎ Distraction-free notes and writing
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GitHub-style markdown editor for Ruby and Rails
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Fast, lightweight markdown viewer & reader for Windows. Native C++ with Direct2D — <5MB binary, <100ms startup, no Electron. 10 themes, TOC, search, edit mode.
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Local-first like Obsidian, polished like Notion. Free & open source: wiki links, slash commands, to-dos, local or cloud sync, and MCP for AI. Web + Mac.
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A desktop reader for PDF, books and Markdown, written in Rust and drawn on the GPU with GPUI. MuPDF renders the pages. There is no browser engine inside.
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:anchor: GROWI - Team collaboration software using markdown
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