head to head · open source
helix-foundry vs Seal-Report
helix-foundry has 1,680 GitHub stars, 257 forks, 8 open issues and last shipped yesterday. Seal-Report has 1,640 stars, 508 forks, 21 open issues and last shipped 2 days ago. helix-foundry leads on adoption by 2% (1,680 vs 1,640 stars). helix-foundry is written in TypeScript under Apache-2.0; Seal-Report is written in C# under MIT. helix-foundry has attracted 15% as many forks as stars, Seal-Report 31%. helix-foundry was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-agents), 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
| helix-foundry | Seal-Report | |
|---|---|---|
| GitHub stars | ★ 1.7K | ★ 1.6K |
| License | Apache-2.0 | MIT |
| Written in | TypeScript | C# |
| Last push | 2026-10-28 | 2026-10-27 |
| Forks | ⑂ 257 | ⑂ 508 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick helix-foundry if
- You weight community size — 1.7K stars and counting
- You want the Apache-2.0 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 helix-foundry
Helix Foundry Connect your company's data, let an agent draft an ontology over it, and load it into HelixDB as one connected graph you can explore and ask questions of. Connect PostgreSQL, MySQL, Amazon S3, Stripe, PostHog, WorkOS, GitHub, Linear, Granola and Cal.com, and upload documents (Markdown, text, PDF) and table files (CSV, TSV, JSON, JSON Lines, Parquet). An agent drafts the ontology: types, links, the tables and documents each comes from, and rules. You review it, edit it and make a version current. A load writes the version into HelixDB. Explore it as a graph or as records, follow every value back to…
read the full helix-foundry overview →
About Seal-Report
Seal Report & Task Seal Report & Task is a complete open source framework for producing reports from any database or NoSQL source, and for performing complex tasks (ETL, batch). Entirely written in C for Microsoft .NET, and free for everyone under the MIT License . The product focuses on easy installation and report design : once set up, reports can be built and published in a minute. Web site & quick start guides : sealreport.org Live demo of the Web Report Server: sealreport.org/demo Free support & community : GitHub Discussions Main Features Dynamic SQL sources : Use your own SQL, or let the Seal engine build…
read the full Seal-Report overview →
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Frequently asked questions
Is helix-foundry or Seal-Report more popular?
helix-foundry has 1,680 GitHub stars and Seal-Report has 1,640. helix-foundry has the larger community by that measure.
Are helix-foundry and Seal-Report free?
Both are open source. helix-foundry is licensed under Apache-2.0 and Seal-Report under MIT. Neither carries a licence fee.
What is the difference between helix-foundry and Seal-Report?
helix-foundry 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, helix-foundry or Seal-Report?
Choose helix-foundry if you want the larger community (1,680 stars) or its Apache-2.0 licence terms. Choose Seal-Report if its feature set, stack or MIT licence fits better. Both are self-hostable.