# microsoft/TouchDevelop

TouchDevelop is a touch-friendly app creation environment for iPad, iPhone, Android, Windows, Mac, Linux. Our mobile-friendly editor makes coding fun, even on your phone or tablet!

Repository: https://github.com/microsoft/TouchDevelop
Canonical: https://ross.abutalabs.com/products/touchdevelop
Language: TypeScript
License: NOASSERTION
License Family: other
Archived: true
Last push: 2018-12-20T15:49:01+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4234, "days_push": 2813, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1360, forks 188 (observed 2026-08-28T04:04:29.860515+00:00)

## What it is
TouchDevelop is a touch-friendly, mobile-first app creation environment from Microsoft Research, including a browser-based editor, compiler, and runtime written in TypeScript. It lets users write and run scripts on phones and tablets, and was used for Hour of Code tutorials and the BBC micro:bit.

## Use cases
- teach kids to code on a tablet
- write apps from a phone with touch input
- run hour of code tutorials in the browser
- explore a touch-based programming editor
- build simple scripts without a keyboard

## When to choose
- you need a touch-first coding environment for tablets or phones
- you are teaching beginners or running Hour of Code activities
- you want to study the source of a browser-based editor and compiler

## When to avoid
- you need an actively maintained tool - the last release was 2018 and the project is discontinued
- you need production mobile app development with modern tooling
- you rely on the cloud backend, which lives in a separate legacy repo

## Facets
- artifact type: application
- maturity: abandoned
- function: editor, compiler, interpreter, programming-language, gui, web-framework
- domain: education, programming-languages, web-development, mobile-development, developer-tools
- platform: cross-platform, browser, windows
- tags: touch-friendly, mobile-first, visual-programming, microsoft-research, hour-of-code, beginner-coding, tablet, web-server, nodejs, mobile, android, ios, macos, linux

## Member repositories
- microsoft/TouchDevelop (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:29.860515+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:41:39.676596+00:00, confidence not recorded.
  - readme: https://github.com/microsoft/TouchDevelop (fetched 2026-08-28T04:04:29.860515+00:00, sha 22760a99e00c)
- Data as of 2026-08-30T08:39:29.467469+00:00.