Compare
GoRules vs Windmill
Windmill offers open-source scripts and internal apps, but does not provide a decision-graph editor or rule-centric AI features.
GoRulesBuild, test, and deploy business rules without writing code
WindmillOpen-source platform for scripts, workflows and internal appsWhich to pick
Pick GoRules if you want…
- Visual, code-free business rule management
- Integrations with Node.js, Rust or Java (on GoRules' list, not Windmill's)
Pick Windmill if you want…
- Code-first internal orchestration
- Open-source internal tooling
- The lower starting price: $120/month against $167/month
- Integrations with TypeScript, Bash or SQL (on Windmill's list, not GoRules')
Side by side
- What it is
- GoRules:GoRules is an open-source business rules engine that lets you model, test and deploy decision logic visually without writing code.
- Windmill:Windmill is an open-source, self-hostable platform for scripts, workflows, apps and data pipelines.
- Best for
- GoRules:Visual, code-free business rule management
- Windmill:Code-first internal orchestration
- Who it’s for
- GoRules:Product teams, engineers and analysts who need explainable, versioned business rules.
- Windmill:Engineering teams building internal tools and automation.
- Pricing
- GoRules:Freemium
- Windmill:Freemium
- Plans
- GoRules:Free $0 / month · Pro $167 / month per month · Business $500 / month per month
- Windmill:Free & Open-source $0/mo · Enterprise $120/mo per month · Developer seat $170/mo per month · Operator seat $20/mo/dev per month · Operator seat (external JWT) $10/mo/op per month
- Open source
- GoRules:Yes, 2,041 GitHub stars
- Windmill:Yes, 18,140 GitHub stars
- Works with
- GoRules:Node.js, Python, Go, Rust, Java, Kotlin, Swift, C#
- Windmill:Python, TypeScript, Go, Bash, SQL, PHP, React, Svelte
GoRules features
- Visual decision editor. Create decision graphs and tables that read like natural language and toggle to developer view.
- Multi-runtime SDKs. Native libraries for Node.js, Python, Go, Rust, Java, Kotlin, Swift and C#.
- Managed cloud & self-hosted options. Run rules in a hosted environment or embed the open-source ZEN engine anywhere.
- Automated testing & coverage. Scenario suites validate rule changes against decision paths with performance metrics.
- Versioned releases & rollback. Promote, approve and rollback rule sets across environments without rebuilds.
- Batch processing. Engine can evaluate millions of rows in-process, avoiding per-row API calls.
- Audit log & SOC 2 compliance. All changes are recorded, versioned and meet SOC 2 Type II standards.
- GoRules AI assistance. AI credits enable natural-language rule authoring, test generation and explanations.
Windmill features
- Multi-language scripts. Run Python, TypeScript, Go, Bash, SQL, PHP and more as API endpoints with full code control.
- Visual DAG workflows. Design dependency graphs in a flow editor or as code, with retries, approvals and parallel branches.
- Low-code app builder. Create React or Svelte front-ends with drag-and-drop and code, backed by existing scripts and flows.
- AI agent integration. Connect to 12+ LLM providers or your own OpenAI-compatible endpoint to run scripts as agent tools.
- Built-in observability. Each run logs inputs, outputs, traces and metrics; alerts can be sent to Slack, Teams or email.
- Git-based collaboration. Workspaces fork like Git branches; changes are reviewed, merged and deployed to staging and prod.
- Self-hosted infra. Deploy via Docker, Fargate or Kubernetes with YAML-defined worker groups and autoscaling.
- Enterprise security. Supports SSO, SAML/SCIM, audit logs, SOC 2 Type II and external secret backends.
GoRules vs Windmill FAQ
Is GoRules or Windmill free?+
GoRules has a free plan; paid plans start at $167/month (Pro). Windmill has a free plan (Free & Open-source); paid plans start at $120/month (Enterprise).
Which is cheaper, GoRules or Windmill?+
Windmill is cheaper to start with: Windmill's Enterprise plan ($120/month) against GoRules' Pro plan ($167/month).
Is GoRules or Windmill open source?+
Yes, both are open source: GoRules (gorules/zen on GitHub, MIT license) and Windmill (windmill-labs/windmill on GitHub).
Do GoRules and Windmill integrate with the same tools?+
Partly. Both list Python and Go. GoRules also lists Node.js, Rust, Java, Kotlin and 2 more; Windmill also lists TypeScript, Bash, SQL, PHP and 8 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.