head to head · open source
duckdb vs Sendune
duckdb has 42,747 GitHub stars, 4,176 forks, 858 open issues and last shipped yesterday. Sendune has 2,304 stars, 144 forks, 2 open issues and last shipped 5 months ago. duckdb leads on adoption by 1,755% (42,747 vs 2,304 stars). duckdb is written in C++ under MIT; Sendune is written in TypeScript under MIT. duckdb has attracted 10% as many forks as stars, Sendune 6%. 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 | Sendune | |
|---|---|---|
| GitHub stars | ★ 43K | ★ 2.3K |
| License | MIT | MIT |
| Written in | C++ | TypeScript |
| Last push | 2026-11-02 | 2026-06-08 |
| Forks | ⑂ 4.2K | ⑂ 144 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick duckdb if
- You weight community size — 43K stars and counting
- You want the MIT license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick Sendune if
- You want the Sendune feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and Sendune fits your workflow better
About duckdb
DuckDB DuckDB is a high performance analytical database system. It is designed to be fast, reliable, portable, and easy to use. DuckDB provides a rich SQL dialect with support far beyond basic SQL. DuckDB supports arbitrary and nested correlated subqueries, window functions, collations, complex types (arrays, structs, maps), and several extensions designed to make SQL easier to use. DuckDB is available as a standalone CLI application and has clients for Python, R, Java, Wasm, etc., with deep integrations with packages such as pandas and dplyr. For more information on using DuckDB, please refer to the DuckDB…
read the full duckdb overview →
About Sendune
💌 Free, Open Source, HTML Email Editor and Designer. 👹 Who? This email designer was originally built for use within SENDUNE (formerly Send With SES). ⁉️ Why Choose SENDUNE Email Designer? Truly Open Source: Use it for personal use or commercial use or whatever. Truly Free: Because the ones that say 'free', are not. Truly Works: Because the ones that are free don't seem to work. Truly HTML: No intermediate code wranglers like mjml. Truly Fast and Light Weight: Because you have better things to do with your time. Truly No Code: Design like a pro without coding headaches. Our minimal interface gets out of your…
read the full Sendune overview →
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Frequently asked questions
Is duckdb or Sendune more popular?
duckdb has 42,747 GitHub stars and Sendune has 2,304. duckdb has the larger community by that measure.
Are duckdb and Sendune free?
Both are open source. duckdb is licensed under MIT and Sendune under MIT. Neither carries a licence fee.
What is the difference between duckdb and Sendune?
duckdb is written in C++ and Sendune in TypeScript. 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 Sendune?
Choose duckdb if you want the larger community (42,747 stars) or its MIT licence terms. Choose Sendune if its feature set, stack or MIT licence fits better. Both are self-hostable.