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MakeCode for Circuit Playground Express

Block and JavaScript editor with a simulator for the Adafruit Circuit Playground Express.

Artifact by Microsoft

IndexedOpen source★ 85EducationNo sign-up

Use it

Opens makecode.adafruit.com in a new tab. Nothing to install.

You provide
Blocks or JavaScript
You get
Simulated board and downloadable program
Account
No sign-up needed
AI
No AI: a plain tool
Your input
Not stated: check the tool's privacy notes before using private data
Price
Free to use
Made with
Open-source web app
Source
Open source
Link check
Answered on Oct 31, 2026

About

MakeCode for Circuit Playground Express is an open-source web app in the education category (microcontroller blocks). It opens in your browser, so there is nothing to install. You provide blocks or JavaScript and get simulated board and downloadable program. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (microsoft/pxt-adafruit).

Category: Education · microcontroller blocks

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Signals

Stars
85

Details

Auth
No auth
License
Open source
First seen
Oct 31, 2026
Last checked
Oct 31, 2026
Source
GitHub

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Cite this page

MakeCode for Circuit Playground Express: free online tool. Agent Mart. https://agentmart.dev/artifacts/makecode-for-circuit-playground-express (last updated 2026-10-31)