Project Summary
Espruino is a JavaScript interpreter for microcontrollers.
It is used to create the Espruino Board, which makes it easy to get started with electronics.
You can just plug the Espruino Board into your computer, open a Terminal application and start programming immediately without having to install special software on your PC or Mac.
Espruino uses Arduino-style commands to access the underlying hardware, while JavaScript supports Strings, Maps, Objects, and Dynamic Arrays. All on devices with as little as 8kb of RAM!
In a Nutshell, Espruino...
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has a well established, mature codebase
maintained by a large development team
with decreasing Y-O-Y commits -
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took an estimated 341 years of effort (COCOMO model)
starting with its first commit in September, 2013
ending with its most recent commit 4 days ago
Quick Reference
Mozilla Public License 2.0
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Sub-License
Use Patent Claims
Forbidden
Hold Liable
Use Trademarks
Required
Distribute Original
Disclose Source
Include Copyright
Include License
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
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30 Day SummaryOct 18 2025 — Nov 17 2025
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12 Month SummaryNov 17 2024 — Nov 17 2025
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