head to head · open source
Listmonk vs ktx
Listmonk has 23,472 GitHub stars, 2,607 forks, 111 open issues and last shipped 5 days ago. ktx has 1,595 stars, 105 forks, 52 open issues and last shipped 7 days ago. Listmonk leads on adoption by 1,372% (23,472 vs 1,595 stars). Listmonk is written in Go under AGPL-3.0; ktx is written in TypeScript under Apache-2.0. Listmonk has attracted 11% as many forks as stars, ktx 7%. Listmonk 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
| Listmonk | ktx | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 1.6K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | Go | TypeScript |
| Last push | 2026-09-13 | 2026-09-11 |
| Forks | ⑂ 2.6K | ⑂ 105 |
| 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 ktx if
- You want the ktx feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and ktx 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 ktx
The context layer for data agents Quickstart · CLI Reference · Agent Setup · Slack Built and maintained by Kaelio ktx is a self improving context layer that teaches agents how to query your warehouse accurately from approved metric definitions, joinable columns, and business knowledge it builds and maintains for you. [!NOTE] Run ktx with your own LLM API keys or a local agent sign in — a Claude Pro/Max subscription through Claude Code, or your local Codex authentication. No extra usage billing from ktx . Why ktx General purpose agents struggle on data tasks. They re explore your warehouse on every question, inven…
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Frequently asked questions
Is Listmonk or ktx more popular?
Listmonk has 23,472 GitHub stars and ktx has 1,595. Listmonk has the larger community by that measure.
Are Listmonk and ktx free?
Both are open source. Listmonk is licensed under AGPL-3.0 and ktx under Apache-2.0. Neither carries a licence fee.
What is the difference between Listmonk and ktx?
Listmonk is written in Go and ktx 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 ktx?
Choose Listmonk if you want the larger community (23,472 stars) or its AGPL-3.0 licence terms. Choose ktx if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.