head to head · open source
Jellyfin vs keploy
Jellyfin has 57,244 GitHub stars, 5,523 forks, 684 open issues and last shipped yesterday. keploy has 18,463 stars, 2,357 forks, 725 open issues and last shipped yesterday. Jellyfin leads on adoption by 210% (57,244 vs 18,463 stars). Jellyfin is written in C# under GPL-2.0; keploy is written in Go under Apache-2.0. Jellyfin has attracted 10% as many forks as stars, keploy 13%. keploy 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 | keploy | |
|---|---|---|
| GitHub stars | ★ 57K | ★ 18K |
| License | GPL-2.0 | Apache-2.0 |
| Written in | C# | Go |
| 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 keploy if
- You want the keploy feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and keploy 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 keploy
Keploy is an open source Go project in the API and integration testing ecosystem. It is a developer centric API and integration testing tool that creates safe, isolated production sandboxes for API, integration, and end to end testing. The project records API calls, database queries, and streaming events, then replays them as tests and data mocks. It captures traffic at the network layer with eBPF, so the README says it is code less and language agnostic.
read the full keploy overview →
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Frequently asked questions
Is Jellyfin or keploy more popular?
Jellyfin has 57,244 GitHub stars and keploy has 18,463. Jellyfin has the larger community by that measure.
Are Jellyfin and keploy free?
Both are open source. Jellyfin is licensed under GPL-2.0 and keploy under Apache-2.0. Neither carries a licence fee.
What is the difference between Jellyfin and keploy?
Jellyfin is written in C# and keploy in Go. 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 keploy?
Choose Jellyfin if you want the larger community (57,244 stars) or its GPL-2.0 licence terms. Choose keploy if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.