bholmesdev/hubble.md

Health v2 · maintenance only

Adoption not part of the score

1436 stars · 89 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Hubble.md is a free, open-source desktop notetaking app built on Markdown and HTML, with a familiar Notion-like editing experience. It is designed for collaboration between humans and coding agents, live-reloading as agents edit notes and supporting custom HTML-based views.

Use cases

• take markdown notes with a notion-like editor
• let a coding agent edit my notes folder and see changes live
• build custom views like tables or maps from a folder of notes
• sync notes from the terminal with a CLI
• write notes with frontmatter and slash commands
• use a local-first notepad that works with AI agents

When to choose

• you want a markdown-native notepad that AI agents can read and edit directly
• you prefer plain files over a proprietary notes database
• you want to build custom HTML views on top of your notes

When to avoid

• you need mature cloud sync across devices today (sync engine is heavily WIP)
• you need mobile apps or a browser-first experience
• you want a fully signed installer on Windows or Linux

Facets

application · maturity active

markdown editor cli developer-tools text-editors developer-tools documentation windows cli note-taking markdown-editor ai-agents tiptap html-apps live-reload cloud-sync macos linux desktop electron nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="bholmesdev/hubble.md")