head to head · open source
Seal-Report vs OpenContracts
Seal-Report has 1,635 GitHub stars, 508 forks, 21 open issues and last shipped 2 days ago. OpenContracts has 1,484 stars, 189 forks, 11 open issues and last shipped yesterday. Seal-Report leads on adoption by 10% (1,635 vs 1,484 stars). Seal-Report is written in C# under MIT; OpenContracts is written in Python under MIT. Seal-Report has attracted 31% as many forks as stars, OpenContracts 13%. OpenContracts was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai-agents, etl), 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
| Seal-Report | OpenContracts | |
|---|---|---|
| GitHub stars | ★ 1.6K | ★ 1.5K |
| License | MIT | MIT |
| Written in | C# | Python |
| Last push | 2026-09-18 | 2026-09-19 |
| Forks | ⑂ 508 | ⑂ 189 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Seal-Report if
- You weight community size — 1.6K stars and counting
- You want the MIT license terms
- Your stack matches C#
- You value the larger contributor base for long-term maintenance
pick OpenContracts if
- You want the OpenContracts feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and OpenContracts fits your workflow better
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 →
About OpenContracts
OpenContracts is an MIT licensed, self hosted document intelligence platform that turns a repository of documents into a programmable citation graph, built for builders and hackers who need a document management system for the agentic world as much as a place to store files.
read the full OpenContracts overview →
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Frequently asked questions
Is Seal-Report or OpenContracts more popular?
Seal-Report has 1,635 GitHub stars and OpenContracts has 1,484. Seal-Report has the larger community by that measure.
Are Seal-Report and OpenContracts free?
Both are open source. Seal-Report is licensed under MIT and OpenContracts under MIT. Neither carries a licence fee.
What is the difference between Seal-Report and OpenContracts?
Seal-Report is written in C# and OpenContracts in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Seal-Report or OpenContracts?
Choose Seal-Report if you want the larger community (1,635 stars) or its MIT licence terms. Choose OpenContracts if its feature set, stack or MIT licence fits better. Both are self-hostable.