head to head · open source
Jellyfin vs openseo
Jellyfin has 57,244 GitHub stars, 5,523 forks, 684 open issues and last shipped yesterday. openseo has 19,046 stars, 2,447 forks, 161 open issues and last shipped yesterday. Jellyfin leads on adoption by 201% (57,244 vs 19,046 stars). Jellyfin is written in C# under GPL-2.0; openseo is written in TypeScript under MIT. Jellyfin has attracted 10% 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
| Jellyfin | openseo | |
|---|---|---|
| GitHub stars | ★ 57K | ★ 19K |
| License | GPL-2.0 | MIT |
| Written in | C# | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 5.5K | ⑂ 2.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Jellyfin if
- You weight community size — 57K stars and counting
- You want the GPL-2.0 license terms
- Your stack matches C#
- 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 Jellyfin
Jellyfin is a free and open source media server that lets an individual or an organisation manage and stream their own movies, music, and other media from a dedicated server to end user devices through multiple client apps.
read the full Jellyfin 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 Jellyfin or openseo more popular?
Jellyfin has 57,244 GitHub stars and openseo has 19,046. Jellyfin has the larger community by that measure.
Are Jellyfin and openseo free?
Both are open source. Jellyfin is licensed under GPL-2.0 and openseo under MIT. Neither carries a licence fee.
What is the difference between Jellyfin and openseo?
Jellyfin is written in C# 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, Jellyfin or openseo?
Choose Jellyfin if you want the larger community (57,244 stars) or its GPL-2.0 licence terms. Choose openseo if its feature set, stack or MIT licence fits better. Both are self-hostable.