head to head · open source
Lightdash vs Seal-Report
Lightdash has 6,145 GitHub stars, 777 forks, 1,018 open issues and last shipped today. Seal-Report has 1,635 stars, 508 forks, 21 open issues and last shipped 2 days ago. Lightdash leads on adoption by 276% (6,145 vs 1,635 stars). Lightdash is written in TypeScript under a custom or non-standard licence; Seal-Report is written in C# under MIT. Lightdash has attracted 13% as many forks as stars, Seal-Report 31%. Lightdash was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (business-intelligence), so they are genuine substitutes rather than adjacent tools.
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
| Lightdash | Seal-Report | |
|---|---|---|
| GitHub stars | ★ 6.1K | ★ 1.6K |
| License | Custom / other | MIT |
| Written in | TypeScript | C# |
| Last push | 2026-09-20 | 2026-09-18 |
| Forks | ⑂ 777 | ⑂ 508 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Lightdash if
- You weight community size — 6.1K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Seal-Report if
- You want the Seal-Report feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and Seal-Report fits your workflow better
About Lightdash
Lightdash is an open source, agentic business intelligence platform for modern data teams, written in TypeScript and distributed under a NOASSERTION license. It lives in the data and analytics ecosystem, specifically the data engineering and integration space, and it is built around dbt and warehouse native workflows. The project describes itself as agentic BI, meaning analytics is intended to move at the speed of code rather than through point and click configuration alone.
read the full Lightdash overview →
About Seal-Report
Seal Report & Task is open source database reporting and task framework written in C for Microsoft .NET. It lives in Data & Analytics and Data Engineering & Integration. It targets reports from SQL and NoSQL sources, plus ETL and batch tasks. License is MIT.
read the full Seal-Report overview →
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Frequently asked questions
Is Lightdash or Seal-Report more popular?
Lightdash has 6,145 GitHub stars and Seal-Report has 1,635. Lightdash has the larger community by that measure.
Are Lightdash and Seal-Report free?
Both are open source. Lightdash has no licence declared in this registry, and Seal-Report is licensed under MIT. Both are free to self-host.
What is the difference between Lightdash and Seal-Report?
Lightdash is written in TypeScript and Seal-Report in C#. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Lightdash or Seal-Report?
Choose Lightdash if you want the larger community (6,145 stars) or its Custom / other licence terms. Choose Seal-Report if its feature set, stack or MIT licence fits better. Both are self-hostable.