Open-source SEI
An open-source alternative to Jellyfish and LinearB
By the CodPal team · Open-source engineering intelligence
Jellyfish and LinearB pioneered the software engineering intelligence (SEI) category, and they're capable products. But if you've priced them, you know the trade-offs: they're expensive per-seat SaaS, your engineering data lives on someone else's servers, and you're locked into whatever their roadmap decides. For a lot of teams, that's a hard sell. Deckgauge is the open-source alternative.
What you keep
You get the same core an SEI platform is bought for: DORA and flow metrics, PR cycle-time and review analytics, delivery and planning insight, roadmaps, and org/team views — over Jira, GitHub, GitLab, and Azure DevOps. The daily job an eng leader hires Jellyfish or LinearB for, Deckgauge does.
What changes
- Open source, not a black box. Read exactly how every metric is computed — no proprietary formula to argue with.
- Self-hosted — your data stays yours. Runs in your own stack; your source tokens and code activity never leave your walls.
- Uncapped. Analyze any number of developers. No per-seat meter, no line-item that grows every time you hire.
- No lock-in. It's your deployment, your database, your dashboards.
When a paid SaaS still makes sense
We'll be straight with you: if you want a fully managed vendor with a large support org and never want to run infrastructure, a commercial SaaS can be the right call. Deckgauge covers that too — an Enterprise plan offers a managed option plus SSO, governance, and support — but the open-source core is the point, and it's free forever.
DevLake vs. a finished product
If you're comparing open-source options, also read DevLake gives you a database, we give you the product — the difference between raw data plumbing and an application you can open in front of your VP.
Deploy Deckgauge free and connect a source in minutes, or book a Health Check to see what it surfaces in your data.