head to head · open source
OpenBB vs macro-mail
OpenBB has 73,164 GitHub stars, 7,569 forks, 117 open issues and last shipped yesterday. macro-mail has 4,347 stars, 416 forks, 100 open issues and last shipped today. OpenBB leads on adoption by 1,583% (73,164 vs 4,347 stars). OpenBB is written in Python under a custom or non-standard licence; macro-mail is written in Rust under AGPL-3.0. OpenBB has attracted 10% as many forks as stars, macro-mail 10%. macro-mail was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 8884 open source comparisons
Side by side
| OpenBB | macro-mail | |
|---|---|---|
| GitHub stars | ★ 73K | ★ 4.3K |
| License | Custom / other | AGPL-3.0 |
| Written in | Python | Rust |
| Last push | 2026-09-17 | 2026-09-18 |
| Forks | ⑂ 7.6K | ⑂ 416 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenBB if
- You weight community size — 73K stars and counting
- You want the Custom / other license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick macro-mail if
- You want the macro-mail feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Rust
- You evaluated both and macro-mail fits your workflow better
About OpenBB
OpenBB is an open source data platform for investment professionals, built as the Open Data Platform (ODP) and extended by the OpenBB Workspace UI. It lives in the quantitative finance and AI agent ecosystem, integrating equity, crypto, derivatives, fixed income, economics, and options data from proprietary, licensed, and public sources.
read the full OpenBB overview →
About macro-mail
Macro is an open source, AGPL 3.0 licensed unified workspace that combines email, messages, docs, tasks, canvas, agents, calls, file storage, pull requests, and CRM into one interface with shared team level memory, built for small companies and for teams inside larger companies that want a single operating system for work instead of a stack of separate tools.
read the full macro-mail overview →
More in Miscellaneous
Related comparisons
More Finance & Fintech projects
Compare either of these against the rest of the Finance & Fintech field.
Frequently asked questions
Is OpenBB or macro-mail more popular?
OpenBB has 73,164 GitHub stars and macro-mail has 4,347. OpenBB has the larger community by that measure.
Are OpenBB and macro-mail free?
Both are open source. OpenBB has no licence declared in this registry, and macro-mail is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between OpenBB and macro-mail?
OpenBB is written in Python and macro-mail in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, OpenBB or macro-mail?
Choose OpenBB if you want the larger community (73,164 stars) or its Custom / other licence terms. Choose macro-mail if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.