Hubble.md
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | Free, open source · Desktop app · Markdown and HTML based notes | Free |
As hubble.md lists them, read 12 Oct 2026. The maker's own page has the final word.
Facts from Hubble.md's own pages
- Agent integrations
- A release note says users can open the current note in Codex or Claude from the note actions menu, with the workspace and note path filled in. · github.com, 12 Oct 2026
- Agent workflow
- Users can point an agent at their notes folder, and Hubble reloads as the agent edits. · github.com, 12 Oct 2026
- Contributions and support
- The project welcomes contributions and asks contributors to open an issue before substantial work; its contribution page says maintainers can help scope ideas and changes. · github.com, 12 Oct 2026
- File support
- The repository describes browsing workspace files, editing plain text and code, viewing PDFs and images, and opening files in their default app. · github.com, 12 Oct 2026
- Free plan
- Yes · hubble.md, 21 Sept 2026
- HTML app links
- HTML Apps can open web links in the system browser and email links in the default email app, including through the `hubble.links.open(url)` API. · github.com, 12 Oct 2026
- HTML apps
- Hubble can display HTML based apps, such as tables, bookshelves, or maps built from a notes folder. · github.com, 12 Oct 2026
- License
- The project is licensed under the MIT License. · github.com, 12 Oct 2026
- Markdown editing
- The editor supports slash commands, Markdown shortcuts, and file properties or frontmatter. · github.com, 12 Oct 2026
- Platforms
- Hubble ships as a desktop app, with macOS, Windows, and Linux listed as supported. · github.com, 12 Oct 2026
- Platform signing
- The README says macOS builds are signed and notarized, while Windows and Linux builds are unsigned and may trigger an OS warning on first launch. · github.com, 12 Oct 2026
- Purpose
- Hubble describes itself as a free, open source note-taking app for people and their agents. · github.com, 12 Oct 2026
- Usage data
- A release note says Hubble collects anonymous usage data and provides a Settings toggle to opt out. · github.com, 12 Oct 2026
Where Hubble.md stands on Freedom251
- Note-taking apps#132 of 216