head to head · open source
postiz vs openseo
postiz has 36,014 GitHub stars, 6,900 forks, 306 open issues and last shipped yesterday. openseo has 19,046 stars, 2,447 forks, 161 open issues and last shipped yesterday. postiz leads on adoption by 89% (36,014 vs 19,046 stars). postiz is written in TypeScript under AGPL-3.0; openseo is written in TypeScript under MIT. postiz has attracted 19% as many forks as stars, openseo 13%. openseo 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
| postiz | openseo | |
|---|---|---|
| GitHub stars | ★ 36K | ★ 19K |
| License | AGPL-3.0 | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 6.9K | ⑂ 2.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick postiz if
- You weight community size — 36K 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 openseo if
- You want the openseo feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and openseo fits your workflow better
About postiz
Postiz is an open source social media scheduling tool built as a self hosted alternative to commercial platforms like Buffer and Hootsuite. It enables users to schedule, manage, and analyze posts across multiple social networks—including X (Twitter), Bluesky, Mastodon, and Discord—while supporting AI assisted content creation and team collaboration. The project lives in the Next.js and NestJS ecosystem, using a monorepo structure with TypeScript, Prisma (defaulting to PostgreSQL), and Temporal for background workflows.
read the full postiz overview →
About openseo
OpenSEO is an open source SEO tool written in TypeScript under the MIT license. It is an alternative to paid SEO platforms such as Semrush and Ahrefs, and it lives in the open source SEO tooling ecosystem. The project provides a hosted option, self hosting paths, and an MCP server for agent use.
read the full openseo overview →
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Frequently asked questions
Is postiz or openseo more popular?
postiz has 36,014 GitHub stars and openseo has 19,046. postiz has the larger community by that measure.
Are postiz and openseo free?
Both are open source. postiz is licensed under AGPL-3.0 and openseo under MIT. Neither carries a licence fee.
What is the difference between postiz and openseo?
postiz is written in TypeScript and openseo 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, postiz or openseo?
Choose postiz if you want the larger community (36,014 stars) or its AGPL-3.0 licence terms. Choose openseo if its feature set, stack or MIT licence fits better. Both are self-hostable.