head to head · open source
Windmill vs teslamate
Windmill has 17,982 GitHub stars, 1,097 forks, 852 open issues and last shipped today. teslamate has 9,008 stars, 1,006 forks, 72 open issues and last shipped yesterday. Windmill leads on adoption by 100% (17,982 vs 9,008 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 | ★ 9.0K |
| License | Custom / other | AGPL-3.0 |
| Written in | Rust | Elixir |
| Last push | 2026-09-20 | 2026-09-19 |
| 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
Windmill is an open source developer platform for internal code, including APIs, background jobs, workflows, and UIs. It lives in the self hostable low code automation ecosystem and supports Python, TypeScript, Go, Bash, SQL, GraphQL, PowerShell, Rust, and more. The project is positioned as an open source alternative to Zapier and, in the README, to Retool, Pipedream, Superblocks, and a simplified Temporal.
read the full Windmill overview →
About teslamate
TeslaMate is an open source, self hosted data logger that records and visualises data from Tesla vehicles, built for Tesla owners who want their driving, charging and battery history to live on their own infrastructure instead of inside a third party service.
read the full teslamate overview →
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Frequently asked questions
Is Windmill or teslamate more popular?
Windmill has 17,982 GitHub stars and teslamate has 9,008. 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 (17,982 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.