head to head · open source
Windmill vs trustgraph
Windmill has 18,360 GitHub stars, 1,136 forks, 852 open issues and last shipped yesterday. trustgraph has 2,869 stars, 339 forks, 18 open issues and last shipped 6 days ago. Windmill leads on adoption by 540% (18,360 vs 2,869 stars). Windmill is written in Rust under a custom or non-standard licence; trustgraph is written in Python under Apache-2.0. Windmill has attracted 6% as many forks as stars, trustgraph 12%. Windmill 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
| Windmill | trustgraph | |
|---|---|---|
| GitHub stars | ★ 18K | ★ 2.9K |
| License | Custom / other | Apache-2.0 |
| Written in | Rust | Python |
| Last push | 2026-11-02 | 2026-10-28 |
| Forks | ⑂ 1.1K | ⑂ 339 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Windmill if
- You weight community size — 18K stars and counting
- You want the Custom / other license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick trustgraph if
- You want the trustgraph 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 trustgraph fits your workflow better
About Windmill
Open source developer platform for internal code: APIs, background jobs, workflows and UIs. Self hostable alternative to Retool, Pipedream, Superblocks and a simplified Temporal with autogenerated UIs and custom UIs to trigger workflows and scripts as internal apps. Scripts are turned into sharable UIs automatically, and can be composed together into flows or used into richer apps built with low code. Supported languages: Python, TypeScript, Go, Bash, SQL, GraphQL, PowerShell, Rust, and more. Try it Website Docs Discord Hub Contributing Windmill Developer platform for APIs, background jobs, workflows and UIs…
read the full Windmill overview →
About trustgraph
HyperGraph Playground Self Host TrustGraph Docs YouTube Discord Website The Context Orchestration Layer for Agentic AI Open Source · Open Standards · Total Transparency TrustGraph is an open source context orchestration layer designed to power the next generation of enterprise AI. AI applications fail without shared context. LLMs are powerful, but without a structured, unified context layer — one that bridges silos, captures complex relationships, and enforces governance — agents hallucinate, violate policies, and produce non deterministic outcomes. TrustGraph builds that layer. It uses hypergraphs to turn raw…
read the full trustgraph overview →
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Frequently asked questions
Is Windmill or trustgraph more popular?
Windmill has 18,360 GitHub stars and trustgraph has 2,869. Windmill has the larger community by that measure.
Are Windmill and trustgraph free?
Both are open source. Windmill has no licence declared in this registry, and trustgraph is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Windmill and trustgraph?
Windmill is written in Rust and trustgraph 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, Windmill or trustgraph?
Choose Windmill if you want the larger community (18,360 stars) or its Custom / other licence terms. Choose trustgraph if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.