head to head · open source
BillionMail vs duckdb-wasm
BillionMail has 15,619 GitHub stars, 1,704 forks, 239 open issues and last shipped 3 months ago. duckdb-wasm has 2,121 stars, 227 forks, 189 open issues and last shipped 2 months ago. BillionMail leads on adoption by 636% (15,619 vs 2,121 stars). BillionMail is written in Go under AGPL-3.0; duckdb-wasm is written in C++ under MIT. BillionMail has attracted 11% as many forks as stars, duckdb-wasm 11%. duckdb-wasm was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 20902 open source comparisons
Side by side
| BillionMail | duckdb-wasm | |
|---|---|---|
| GitHub stars | ★ 16K | ★ 2.1K |
| License | AGPL-3.0 | MIT |
| Written in | Go | C++ |
| Last push | 2026-06-11 | 2026-07-28 |
| Forks | ⑂ 1.7K | ⑂ 227 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick BillionMail if
- You weight community size — 16K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick duckdb-wasm if
- You want the duckdb-wasm feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C++
- You evaluated both and duckdb-wasm fits your workflow better
About BillionMail
BillionMail is an open source mail server, newsletter, and email marketing platform that runs entirely on infrastructure the operator controls. It is written in Go and released under the AGPL 3.0 license, and it lives in the self hosted email and marketing ecosystem alongside the mail transfer and delivery components it bundles, including Postfix, Dovecot, and Rspamd. The project ships as a complete stack rather than a single binary, combining a sending server, a campaign manager, and a webmail client so that one deployment covers transactional mail, promotional campaigns, and newsletters.
read the full BillionMail overview →
About duckdb-wasm
DuckDB Wasm is the WebAssembly build of DuckDB, an in process SQL OLAP database management system, that runs analytical SQL queries entirely inside a web browser or a Node.js process — built for front end developers and data engineers who want full OLAP query power on data that already sits on the client, without standing up a server.
read the full duckdb-wasm overview →
More in Business Software
Related comparisons
More Marketing & Customer Engagement projects
Compare either of these against the rest of the Marketing & Customer Engagement field.
Frequently asked questions
Is BillionMail or duckdb-wasm more popular?
BillionMail has 15,619 GitHub stars and duckdb-wasm has 2,121. BillionMail has the larger community by that measure.
Are BillionMail and duckdb-wasm free?
Both are open source. BillionMail is licensed under AGPL-3.0 and duckdb-wasm under MIT. Neither carries a licence fee.
What is the difference between BillionMail and duckdb-wasm?
BillionMail is written in Go and duckdb-wasm in C++. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, BillionMail or duckdb-wasm?
Choose BillionMail if you want the larger community (15,619 stars) or its AGPL-3.0 licence terms. Choose duckdb-wasm if its feature set, stack or MIT licence fits better. Both are self-hostable.