head to head · open source
Windmill vs teslamate
Windmill has 18,370 GitHub stars, 1,135 forks, 852 open issues and last shipped yesterday. teslamate has 9,230 stars, 1,041 forks, 72 open issues and last shipped 2 days ago. Windmill leads on adoption by 99% (18,370 vs 9,230 stars). Windmill is written in Rust under a custom or non-standard licence; teslamate is written in Elixir under AGPL-3.0. Windmill has attracted 6% as many forks as stars, teslamate 11%. 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 | teslamate | |
|---|---|---|
| GitHub stars | ★ 18K | ★ 9.2K |
| License | Custom / other | AGPL-3.0 |
| Written in | Rust | Elixir |
| Last push | 2026-11-04 | 2026-11-03 |
| Forks | ⑂ 1.1K | ⑂ 1.0K |
| 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 teslamate if
- You want the teslamate feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Elixir
- You evaluated both and teslamate 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 teslamate
TeslaMate A powerful, self hosted data logger for your Tesla. Written in Elixir Data is stored in a Postgres database Visualization and data analysis with Grafana Vehicle data is published to a local MQTT Broker ⚠️ Security Warning [!CAUTION] Use Official Versions Only To protect yourself from malicious forks, malware, and data theft, please ensure you only obtain TeslaMate from the official source: Official Repository: Official Documentation: We have received reports of deceptive websites and unofficial mobile apps (e.g. on the App Store) using the TeslaMate name to distribute modified or harmful versions. If…
read the full teslamate overview →
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Frequently asked questions
Is Windmill or teslamate more popular?
Windmill has 18,370 GitHub stars and teslamate has 9,230. Windmill has the larger community by that measure.
Are Windmill and teslamate free?
Both are open source. Windmill has no licence declared in this registry, and teslamate is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Windmill and teslamate?
Windmill is written in Rust and teslamate in Elixir. 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 teslamate?
Choose Windmill if you want the larger community (18,370 stars) or its Custom / other licence terms. Choose teslamate if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.