head to head · open source
duckdb vs line-harness-oss
duckdb has 41,440 GitHub stars, 3,798 forks, 858 open issues and last shipped yesterday. line-harness-oss has 592 stars, 383 forks, 50 open issues and last shipped 7 days ago. duckdb leads on adoption by 6,900% (41,440 vs 592 stars). duckdb is written in C++ under MIT; line-harness-oss is written in TypeScript under MIT. duckdb has attracted 9% as many forks as stars, line-harness-oss 65%. 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 | line-harness-oss | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 592 |
| License | MIT | MIT |
| Written in | C++ | TypeScript |
| Last push | 2026-09-17 | 2026-09-11 |
| Forks | ⑂ 3.8K | ⑂ 383 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick duckdb if
- You weight community size — 41K stars and counting
- You want the MIT license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick line-harness-oss if
- You want the line-harness-oss feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and line-harness-oss 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 line-harness-oss
L Harness is a self hosted, MIT licensed CRM for LINE Official Accounts, written in TypeScript and deployed on Cloudflare Workers with a D1 database, aimed at teams that want step messaging, broadcasts, forms and reservations without paying a monthly platform fee.
read the full line-harness-oss overview →
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Frequently asked questions
Is duckdb or line-harness-oss more popular?
duckdb has 41,440 GitHub stars and line-harness-oss has 592. duckdb has the larger community by that measure.
Are duckdb and line-harness-oss free?
Both are open source. duckdb is licensed under MIT and line-harness-oss under MIT. Neither carries a licence fee.
What is the difference between duckdb and line-harness-oss?
duckdb is written in C++ and line-harness-oss 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 line-harness-oss?
Choose duckdb if you want the larger community (41,440 stars) or its MIT licence terms. Choose line-harness-oss if its feature set, stack or MIT licence fits better. Both are self-hostable.