head to head · open source
strix vs Spark
strix has 63,387 GitHub stars, 6,917 forks, 383 open issues and last shipped yesterday. Spark has 604 stars, 445 forks, 7 open issues and last shipped 5 days ago. strix leads on adoption by 10,395% (63,387 vs 604 stars). strix is written in Python under Apache-2.0; Spark is written in Java under Apache-2.0. strix has attracted 11% as many forks as stars, Spark 74%. strix 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
| strix | Spark | |
|---|---|---|
| GitHub stars | ★ 63K | ★ 604 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Java |
| Last push | 2026-09-17 | 2026-09-13 |
| Forks | ⑂ 6.9K | ⑂ 445 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick strix if
- You weight community size — 63K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick Spark if
- You want the Spark feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and Spark fits your workflow better
About strix
Strix is an open source AI penetration testing tool that deploys autonomous AI agents against a running codebase to find, validate, and fix application vulnerabilities, built for developers and security teams who want dynamic security testing without the cost and scheduling overhead of manual pentesting.
read the full strix overview →
About Spark
Spark is an open source, cross platform XMPP instant messaging client written in Java, built for businesses and organizations that want private, standards based real time collaboration instead of public consumer IM networks.
read the full Spark overview →
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Frequently asked questions
Is strix or Spark more popular?
strix has 63,387 GitHub stars and Spark has 604. strix has the larger community by that measure.
Are strix and Spark free?
Both are open source. strix is licensed under Apache-2.0 and Spark under Apache-2.0. Neither carries a licence fee.
What is the difference between strix and Spark?
strix is written in Python and Spark in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, strix or Spark?
Choose strix if you want the larger community (63,387 stars) or its Apache-2.0 licence terms. Choose Spark if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.