head to head · open source
espectre vs power-flow-card-plus
espectre has 9,786 GitHub stars, 743 forks, 13 open issues and last shipped 2 days ago. power-flow-card-plus has 1,209 stars, 190 forks, 12 open issues and last shipped 2 days ago. espectre leads on adoption by 709% (9,786 vs 1,209 stars). espectre is written in Python under GPL-3.0; power-flow-card-plus is written in various languages under MIT. espectre has attracted 8% as many forks as stars, power-flow-card-plus 16%. power-flow-card-plus was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (home-assistant), so they are genuine substitutes rather than adjacent tools.
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
| espectre | power-flow-card-plus | |
|---|---|---|
| GitHub stars | ★ 9.8K | ★ 1.2K |
| License | GPL-3.0 | MIT |
| Written in | Python | — |
| Last push | 2026-11-08 | 2026-11-08 |
| Forks | ⑂ 743 | ⑂ 190 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick espectre if
- You weight community size — 9.8K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick power-flow-card-plus if
- You want the power-flow-card-plus feature set and don't need the biggest community
- You prefer the MIT license terms
- You evaluated both and power-flow-card-plus fits your workflow better
About espectre
ESPectre Turn an ESP32 into a private, local Wi Fi motion sensor. When someone moves through a room, they change the way Wi Fi signals travel through it. ESPectre reads those changes and reports motion in real time. No camera, no microphone, no wearable, and no dedicated radar hardware: just a supported ESP32 and the Wi Fi network already in the room. ESPectre is an open source platform that brings together ready to flash firmware, an embeddable C++ SDK, a MicroPython implementation, browser tools, a host CLI, an open dataset, open model weights, and the research workflow used to build and validate the…
read the full espectre overview →
About power-flow-card-plus
Power Flow Card Plus [!TIP] 📖 Full documentation: cards.flixlix.com/power flow card plus The docs site has the complete configuration reference, an interactive configurator with copy pasteable YAML, and ready made examples — much easier to navigate than this README. Installation Configuration reference Interactive configurator Examples [!NOTE] This card is distributed via flixlix/power flow card plus, but the source code lives in the monorepo at flixlix/flixlix cards. Issues and feature requests will be tracked there going forward. Additional Features / Enhancements UI Editor!!! 🥳 Multiple Language support…
read the full power-flow-card-plus overview →
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Frequently asked questions
Is espectre or power-flow-card-plus more popular?
espectre has 9,786 GitHub stars and power-flow-card-plus has 1,209. espectre has the larger community by that measure.
Are espectre and power-flow-card-plus free?
Both are open source. espectre is licensed under GPL-3.0 and power-flow-card-plus under MIT. Neither carries a licence fee.
What is the difference between espectre and power-flow-card-plus?
espectre is written in Python and power-flow-card-plus in various languages. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, espectre or power-flow-card-plus?
Choose espectre if you want the larger community (9,786 stars) or its GPL-3.0 licence terms. Choose power-flow-card-plus if its feature set, stack or MIT licence fits better. Both are self-hostable.