head to head · open source
preswald vs OpenOutreach
preswald has 4,269 GitHub stars, 646 forks, 330 open issues and last shipped 3 months ago. OpenOutreach has 3,041 stars, 560 forks, 1 open issues and last shipped 13 days ago. preswald leads on adoption by 40% (4,269 vs 3,041 stars). preswald is written in Python under Apache-2.0; OpenOutreach is written in Python under GPL-3.0. preswald has attracted 15% as many forks as stars, OpenOutreach 18%. OpenOutreach was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (llm), 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.
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Side by side
| preswald | OpenOutreach | |
|---|---|---|
| GitHub stars | ★ 4.3K | ★ 3.0K |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-06-11 | 2026-09-07 |
| Forks | ⑂ 646 | ⑂ 560 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick preswald if
- You weight community size — 4.3K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick OpenOutreach if
- You want the OpenOutreach feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Python
- You evaluated both and OpenOutreach fits your workflow better
About preswald
Preswald is an Apache 2.0 Python static site generator that packages interactive data apps — compute, data access, and UI — into self contained .html files that run entirely in the browser on a WebAssembly runtime built from Pyodide and DuckDB, aimed at analysts, data engineers, and developers who need to hand a working dashboard, report, or inspection tool to someone who will not install anything.
read the full preswald overview →
About OpenOutreach
OpenOutreach is an open source AI agent for B2B lead generation, written in Python and licensed under GPL 3.0. It is a self hosted CLI that lets a user describe a product and target market, then finds matching people from a licensed data provider and judges each one against an ideal customer profile learned from those descriptions.
read the full OpenOutreach overview →
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Frequently asked questions
Is preswald or OpenOutreach more popular?
preswald has 4,269 GitHub stars and OpenOutreach has 3,041. preswald has the larger community by that measure.
Are preswald and OpenOutreach free?
Both are open source. preswald is licensed under Apache-2.0 and OpenOutreach under GPL-3.0. Neither carries a licence fee.
What is the difference between preswald and OpenOutreach?
preswald is written in Python and OpenOutreach in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, preswald or OpenOutreach?
Choose preswald if you want the larger community (4,269 stars) or its Apache-2.0 licence terms. Choose OpenOutreach if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.