Hubble.md

Place

#195 of 216

Chart

Score

6.2

The facts below are what the maker publishes about Hubble.md, checked and dated. Our editors have not written about it yet.

Plans and prices

From Hubble.md's own pricing page, checked 12 Oct 2026.

Plan	Price	What it gives you
Free	Free	Desktop app · Markdown and HTML based notes · Free, open source

Each one read from Hubble.md's own pages, with the date it was checked.

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.checked 12 Oct 2026
Agent workflow: Users can point an agent at their notes folder, and Hubble reloads as the agent edits.checked 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.checked 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.checked 12 Oct 2026
License: The project is licensed under the MIT License.checked 12 Oct 2026
Markdown editing: The editor supports slash commands, Markdown shortcuts, and file properties or frontmatter.checked 12 Oct 2026
Purpose: Hubble describes itself as a free, open source note-taking app for people and their agents.checked 12 Oct 2026
Usage data: A release note says Hubble collects anonymous usage data and provides a Settings toggle to opt out.checked 12 Oct 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.checked 12 Oct 2026
HTML apps: Hubble can display HTML based apps, such as tables, bookshelves, or maps built from a notes folder.checked 12 Oct 2026
Platforms: Hubble ships as a desktop app, with macOS, Windows, and Linux listed as supported.checked 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.checked 12 Oct 2026
Supported platforms: macOS,Windows,Linuxchecked 21 Sep 2026