head to head · open source
duckdb vs MailAccess
duckdb has 42,160 GitHub stars, 3,934 forks, 858 open issues and last shipped yesterday. MailAccess has 1,612 stars, 143 forks, 3 open issues and last shipped yesterday. duckdb leads on adoption by 2,515% (42,160 vs 1,612 stars). duckdb is written in C++ under MIT; MailAccess is written in Python under MIT. duckdb has attracted 9% as many forks as stars, MailAccess 9%. duckdb 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.
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Side by side
| duckdb | MailAccess | |
|---|---|---|
| GitHub stars | ★ 42K | ★ 1.6K |
| License | MIT | MIT |
| Written in | C++ | Python |
| Last push | 2026-10-14 | 2026-10-14 |
| Forks | ⑂ 3.9K | ⑂ 143 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick duckdb if
- You weight community size — 42K stars and counting
- You want the MIT license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick MailAccess if
- You want the MailAccess feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and MailAccess fits your workflow better
About duckdb
DuckDB is an analytical, in process SQL database management system written in C++ and released under the MIT license. It runs inside the application process rather than as a separate server, and it is distributed as a standalone command line application as well as through clients for Python, R, Java, and WebAssembly. The project lives in the analytical SQL ecosystem, where the topics listed for it are analytics, database, embedded database, OLAP, and SQL. It has been developed for about eight years, with the last push recorded on 15 September 2026.
read the full duckdb overview →
About MailAccess
MailAccess is a free, self hostable email OSINT platform, shipped on PyPI as mailaccess , that fans a single address out across breach databases, social networks, DNS records, and the open web and returns a unified exposure score, built for security researchers, OSINT analysts, and penetration testers working under authorization.
read the full MailAccess overview →
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Frequently asked questions
Is duckdb or MailAccess more popular?
duckdb has 42,160 GitHub stars and MailAccess has 1,612. duckdb has the larger community by that measure.
Are duckdb and MailAccess free?
Both are open source. duckdb is licensed under MIT and MailAccess under MIT. Neither carries a licence fee.
What is the difference between duckdb and MailAccess?
duckdb is written in C++ and MailAccess 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, duckdb or MailAccess?
Choose duckdb if you want the larger community (42,160 stars) or its MIT licence terms. Choose MailAccess if its feature set, stack or MIT licence fits better. Both are self-hostable.