head to head · open source
Plunk vs Sendportal
Plunk has 5,474 GitHub stars, 401 forks, 61 open issues and last shipped 4 days ago. Sendportal has 2,173 stars, 465 forks, 52 open issues and last shipped 2.4 years ago. Plunk leads on adoption by 152% (5,474 vs 2,173 stars). Plunk is written in TypeScript under AGPL-3.0; Sendportal is written in PHP under MIT. Plunk has attracted 7% as many forks as stars, Sendportal 21%. Plunk 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
| Plunk | Sendportal | |
|---|---|---|
| GitHub stars | ★ 5.5K | ★ 2.2K |
| License | AGPL-3.0 | MIT |
| Written in | TypeScript | PHP |
| Last push | 2026-09-14 | 2024-04-19 |
| Forks | ⑂ 401 | ⑂ 465 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Plunk if
- You weight community size — 5.5K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Sendportal if
- You want the Sendportal feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches PHP
- You evaluated both and Sendportal fits your workflow better
About Plunk
Plunk is an open source email platform written in TypeScript and released under the AGPL 3.0 license. It combines transactional email, marketing campaigns, and workflow automation in a single system, and it is positioned as a self hosted alternative to SendGrid, Resend, and Mailgun. The project lives in the TypeScript and Node.js ecosystem, ships as a Docker image, and is documented at docs.useplunk.com with a community Discord for support.
read the full Plunk overview →
About Sendportal
SendPortal is an open source, self hosted email marketing application built in PHP and Laravel. It lives in the PHP and Laravel ecosystem and is distributed under the MIT license. Its core functionality is packaged as SendPortal Core, while the SendPortal application wraps that core with user authentication and multiple workspaces.
read the full Sendportal overview →
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Frequently asked questions
Is Plunk or Sendportal more popular?
Plunk has 5,474 GitHub stars and Sendportal has 2,173. Plunk has the larger community by that measure.
Are Plunk and Sendportal free?
Both are open source. Plunk is licensed under AGPL-3.0 and Sendportal under MIT. Neither carries a licence fee.
What is the difference between Plunk and Sendportal?
Plunk is written in TypeScript and Sendportal in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Plunk or Sendportal?
Choose Plunk if you want the larger community (5,474 stars) or its AGPL-3.0 licence terms. Choose Sendportal if its feature set, stack or MIT licence fits better. Both are self-hostable.