Comparison
flowable-engine vs RulesEngine
Verdict
Pick flowable-engine if flowable-engine is a Java-based BPM platform which focuses on being compact and efficient for developers, system admins, and business users; pick RulesEngine if rulesEngine is a .NET-based rules engine with powerful dynamic expression support for complex logic.
Markdown twin · flowable-engine alternatives · RulesEngine alternatives
GraphCanon updated Sep 15, 2026
17views this month
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Trust & integrity
| Signal | flowable-engine | RulesEngine |
|---|---|---|
| Maintenance | Very active (2d since push) As of Sep 14, 2026 · github_public_v1 | Very active (3d since push) As of Sep 15, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 14, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 15, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Jul 15, 2026 · osv@v1 | No lockfile (source not queried) As of Jul 15, 2026 · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- flowable-engine
- A compact and highly efficient workflow and Business Process Management (BPM) platform
- RulesEngine
- A fast and reliable .NET Rules Engine with extensive Dynamic expression support
Stars
- flowable-engine
- 9.5k
- RulesEngine
- 4.4k
Forks
- flowable-engine
- 2.9k
- RulesEngine
- 613
Open issues
- flowable-engine
- 411
- RulesEngine
- 54
Language
- flowable-engine
- Java
- RulesEngine
- C#
Adopt for
- flowable-engine
- Flowable-engine is a Java-based BPM platform which focuses on being compact and efficient for developers, system admins, and business users.
- RulesEngine
- RulesEngine is a .NET-based rules engine with powerful dynamic expression support for complex logic.
Persona
- flowable-engine
- -
- RulesEngine
- -
Runtime
- flowable-engine
- -
- RulesEngine
- -
License
- flowable-engine
- Apache-2.0
- RulesEngine
- MIT
Last pushed
- flowable-engine
- Sep 12, 2026
- RulesEngine
- Sep 11, 2026
Categories
- flowable-engine
- Developer Tools
- RulesEngine
- Developer Tools
Trust and health
Days since push
- flowable-engine
- 2d
- RulesEngine
- 3d
Open issues (now)
- flowable-engine
- 411
- RulesEngine
- 54
Stars delta
- flowable-engine
- +84 (30d)
- RulesEngine
- +22 (30d)
Open issues delta
- flowable-engine
- +10 (30d)
- RulesEngine
- 0 (30d)
Full report
- flowable-engine
- Trust report
- RulesEngine
- Trust report
Choose flowable-engine if…
- flowable-engine is primarily Java; RulesEngine is C#.
- License: flowable-engine is Apache-2.0, RulesEngine is MIT.
- Tags unique to flowable-engine: bpmn, java, workflow-engine.
- When your project requires extensive integration with existing Java applications without adding significant overhead.
When NOT to use flowable-engine
- If you need a BPM solution that heavily relies on graphical process design tools, as Flowable-engine may not cater to non-technical users as intuitively as some competitors.
- In scenarios needing extensive support for custom programming languages outside of Java, as this could limit its applicability and efficacy.
Choose RulesEngine if…
- RulesEngine is primarily C#; flowable-engine is Java.
- License: RulesEngine is MIT, flowable-engine is Apache-2.0.
- Tags unique to RulesEngine: .net, engine, expression-evaluator, nuget.
- You require fast execution of rules within a .NET application
When NOT to use RulesEngine
- When working on non-.NET environments as it is limited to this ecosystem
- If your rules are simple and do not need the advanced dynamic expression features
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (flowable/flowable-engine) · observed Sep 14, 2026
- GitHub forks (flowable/flowable-engine) · observed Sep 14, 2026
- Last push (flowable/flowable-engine) · observed Sep 12, 2026
- License file (Apache-2.0) · observed Sep 14, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
- GitHub stars (microsoft/RulesEngine) · observed Sep 15, 2026
- GitHub forks (microsoft/RulesEngine) · observed Sep 15, 2026
- Last push (microsoft/RulesEngine) · observed Sep 11, 2026
- License file (MIT) · observed Sep 15, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
GitHub stars on cards: flowable-engine 9.5k · RulesEngine 4.4k (synced Sep 14, 2026).
Common questions
- What is the difference between flowable-engine and RulesEngine?
- flowable-engine: A compact and highly efficient workflow and Business Process Management (BPM) platform. RulesEngine: A fast and reliable .NET Rules Engine with extensive Dynamic expression support. See the comparison table for live GitHub stats and shared categories.
- When should I choose flowable-engine over RulesEngine?
- Choose flowable-engine over RulesEngine when flowable-engine is primarily Java; RulesEngine is C#; License: flowable-engine is Apache-2.0, RulesEngine is MIT; Tags unique to flowable-engine: bpmn, java, workflow-engine; When your project requires extensive integration with existing Java applications without adding significant overhead.
- When should I choose RulesEngine over flowable-engine?
- Choose RulesEngine over flowable-engine when RulesEngine is primarily C#; flowable-engine is Java; License: RulesEngine is MIT, flowable-engine is Apache-2.0; Tags unique to RulesEngine: .net, engine, expression-evaluator, nuget; You require fast execution of rules within a .NET application.
- When should I avoid flowable-engine?
- If you need a BPM solution that heavily relies on graphical process design tools, as Flowable-engine may not cater to non-technical users as intuitively as some competitors. In scenarios needing extensive support for custom programming languages outside of Java, as this could limit its applicability and efficacy.
- When should I avoid RulesEngine?
- When working on non-.NET environments as it is limited to this ecosystem If your rules are simple and do not need the advanced dynamic expression features
- Is flowable-engine or RulesEngine more popular on GitHub?
- flowable-engine has more GitHub stars (9,535 vs 4,351). Stars measure visibility, not whether either tool fits your constraints.
- Are flowable-engine and RulesEngine open source?
- Yes - both are open-source projects on GitHub (flowable-engine: Apache-2.0, RulesEngine: MIT).
- Where can I find alternatives to flowable-engine or RulesEngine?
- GraphCanon lists graph-backed alternatives at flowable-engine alternatives and RulesEngine alternatives (flowable-engine markdown twin, RulesEngine markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, flowable-engine or RulesEngine?
- flowable-engine: Very active. RulesEngine: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for flowable-engine and RulesEngine?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: flowable-engine trust report; RulesEngine trust report.