head to head · open source
trivy vs st2
trivy has 37,969 GitHub stars, 692 forks, 269 open issues and last shipped yesterday. st2 has 6,536 stars, 787 forks, 603 open issues and last shipped 16 days ago. trivy leads on adoption by 481% (37,969 vs 6,536 stars). trivy is written in Go under Apache-2.0; st2 is written in Python under Apache-2.0. trivy has attracted 2% as many forks as stars, st2 12%. trivy 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
| trivy | st2 | |
|---|---|---|
| GitHub stars | ★ 38K | ★ 6.5K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | Python |
| Last push | 2026-09-17 | 2026-09-02 |
| Forks | ⑂ 692 | ⑂ 787 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick trivy if
- You weight community size — 38K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick st2 if
- You want the st2 feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and st2 fits your workflow better
About trivy
Trivy is an open source security scanner written in Go and released under the Apache 2.0 license. It is an Aqua Security open source project, hosted at trivy.dev, and it lives in the cloud native and DevSecOps ecosystem alongside container runtimes, Kubernetes clusters, and infrastructure as code tooling. The design separates two ideas: scanners, which describe the classes of security issue Trivy looks for, and targets, which describe where it looks. The README presents the project as a comprehensive and versatile scanner, and the topic list — containers, devsecops, docker, iac, infrastructure as code, kubernetes…
read the full trivy overview →
About st2
StackStorm — packaged and installed as st2 — is an open source, event driven automation platform, often described as "IFTTT for Ops", that ties existing infrastructure, monitoring and application tools together so DevOps engineers and SREs can automate remediation, incident response, troubleshooting and deployment as rules and workflows stored as code.
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Frequently asked questions
Is trivy or st2 more popular?
trivy has 37,969 GitHub stars and st2 has 6,536. trivy has the larger community by that measure.
Are trivy and st2 free?
Both are open source. trivy is licensed under Apache-2.0 and st2 under Apache-2.0. Neither carries a licence fee.
What is the difference between trivy and st2?
trivy is written in Go and st2 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, trivy or st2?
Choose trivy if you want the larger community (37,969 stars) or its Apache-2.0 licence terms. Choose st2 if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.