head to head · open source
Listmonk vs line-harness-oss
Listmonk has 23,471 GitHub stars, 2,604 forks, 111 open issues and last shipped 5 days ago. line-harness-oss has 592 stars, 383 forks, 50 open issues and last shipped 7 days ago. Listmonk leads on adoption by 3,865% (23,471 vs 592 stars). Listmonk is written in Go under AGPL-3.0; line-harness-oss is written in TypeScript under MIT. Listmonk has attracted 11% as many forks as stars, line-harness-oss 65%. Listmonk was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (self-hosted), 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
| Listmonk | line-harness-oss | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 592 |
| License | AGPL-3.0 | MIT |
| Written in | Go | TypeScript |
| Last push | 2026-09-13 | 2026-09-11 |
| Forks | ⑂ 2.6K | ⑂ 383 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Listmonk if
- You weight community size — 23K 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 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 Listmonk
Listmonk is a standalone, self hosted newsletter and mailing list manager in the open source business software and marketing customer engagement ecosystem. It packages campaign management, subscriber management, and email delivery controls into a single binary application with a modern dashboard, and it uses PostgreSQL as its data store.
read the full Listmonk 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 Listmonk or line-harness-oss more popular?
Listmonk has 23,471 GitHub stars and line-harness-oss has 592. Listmonk has the larger community by that measure.
Are Listmonk and line-harness-oss free?
Both are open source. Listmonk is licensed under AGPL-3.0 and line-harness-oss under MIT. Neither carries a licence fee.
What is the difference between Listmonk and line-harness-oss?
Listmonk is written in Go 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, Listmonk or line-harness-oss?
Choose Listmonk if you want the larger community (23,471 stars) or its AGPL-3.0 licence terms. Choose line-harness-oss if its feature set, stack or MIT licence fits better. Both are self-hostable.