# bholmesdev/hubble.md

The best notepad for you and your agents

Repository: https://github.com/bholmesdev/hubble.md
Canonical: https://ross.abutalabs.com/products/hubblemd
Homepage: https://hubble.md
Language: TypeScript
License: MIT
License Family: permissive
Topics: markdown, note-taking
Last push: 2026-08-19T14:56:16+00:00

## Health v2 (maintenance only)
Score: 81/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 98, longevity 14
- inputs: {"age_days": 197, "days_push": 14, "days_rel": 14, "gap_med": 2, "n_releases_24m": 26}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1436, forks 89 (observed 2026-08-28T04:04:43.413677+00:00)

## What it is
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
- artifact type: application
- maturity: active
- function: markdown, editor, cli, developer-tools
- domain: text-editors, developer-tools, documentation
- platform: windows, cli
- tags: note-taking, markdown-editor, ai-agents, tiptap, html-apps, live-reload, cloud-sync, macos, linux, desktop, electron, nodejs

## Member repositories
- bholmesdev/hubble.md (main) score 81

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:43.413677+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:36:46.816375+00:00, confidence not recorded.
  - readme: https://github.com/bholmesdev/hubble.md (fetched 2026-08-28T04:04:43.413677+00:00, sha 98a851fa9396)
  - homepage: https://hubble.md (fetched 2026-08-29T11:47:45.218749+00:00, sha d2af453ff132)
- Data as of 2026-08-30T08:39:29.467469+00:00.