AI agents
hubble.md
A Markdown notepad designed to be shared with your AI agents
★ 1.4k
August 2026
MIT
AI agents
What we checked ourselves
Not copied from the project's own blurb. These are things we opened and verified, with the date.
- 23 Aug 2026We checked that the link to the project still resolves.
- 14 Aug 2026We read the licence text itself (LICENSE). No unusual restrictions were stated.
- 2 Sept 2026We read the project's own documentation and found no sign that development has stopped.
Where this sits among the 114 tools we list in AI agents
- Works without using a terminal21 of 114
- No API key required29 of 114
- Keeps your data on your own machine11 of 114
- Commercial use confirmed as allowed95 of 114
Only 1 of the 114 meet all of the conditions above.
Counted from our own checks: every tool we list is examined against the same criteria.
What it does
Writing feels like Notion or Apple Notes - slash commands, Markdown shortcuts, frontmatter - but everything is stored as ordinary Markdown files, and the design assumes you will point an agent at that folder so it can read and write alongside you. Back up anything important before doing so, and remember that whatever the agent reads goes to its provider, so choose the folder deliberately.
Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.
Screenshots & visuals
Before you start
- Setup difficultySome setup needed
- Command lineNot required
- API keyNot required
- Sends data onlineNo
Judged automatically from the project's own metadata. Always confirm on the official page.
hubble.md FAQ
- Is hubble.md free?
- Yes. It runs on your own machine, so there is no usage-based cost either.
- Do I need to install anything or write code to use hubble.md?
- You install it like a normal desktop app. No command line involved.
- Does hubble.md work on a phone?
- No. It needs a computer.
- Can I use hubble.md commercially?
- The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.
How it compares
The conditions that decide whether you can actually use it, side by side.
| Tool | Command line | API key | Sends data out | Phone | Commercial use |
|---|---|---|---|---|---|
| hubble.md (this page) | Not needed | Not needed | No | No | Yes |
| Cline | Not needed | Required | Yes | No | Yes |
| AgentGPT | Not needed | Required | Yes | No | Yes |
| Continue | Not needed | Required | Yes | No | Yes |
"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.