# stackblitz/core

Online IDE powered by Visual Studio Code ⚡️

Repository: https://github.com/stackblitz/core
Canonical: https://ross.abutalabs.com/products/stackblitz-core
Homepage: https://stackblitz.com
License: MIT
License Family: permissive
Last push: 2024-06-09T03:15:21+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3366, "days_push": 815, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 10875, forks 1293 (observed 2026-08-28T04:10:44.576442+00:00)

## What it is
StackBlitz is an online IDE powered by Visual Studio Code that runs entire development environments, including Node.js, directly in the browser via WebContainers (a WebAssembly-based micro OS). This repository is primarily the issue tracker and community hub for the hosted service, with related repos for its SDK, docs, and WebContainers.

## Use cases
- run a full dev environment in the browser without installing anything
- open a GitHub repo in an online IDE with one click
- create interactive code playgrounds for documentation
- reproduce bugs in a shareable browser-based environment
- teach web development with instant in-browser coding environments
- embed editable code examples in docs via the SDK
- contribute to open-source projects from a browser IDE

## When to choose
- you want zero-setup frontend or Node.js development entirely in the browser
- you need instant, millisecond-boot dev environments with offline capability
- you want to embed live coding playgrounds or one-click repo IDEs in docs and sites
- you need a secure alternative to remote-server cloud IDEs

## When to avoid
- you need a fully self-hosted open-source IDE without a commercial service
- you work with languages or toolchains outside the JavaScript/Node.js ecosystem
- you require deep local filesystem or native tooling access
- you want to contribute code to the IDE itself, since this repo is mainly an issue tracker

## Facets
- artifact type: application
- maturity: active
- function: editor, developer-tools, wasm, web-framework
- domain: developer-tools, web-development, frontend, education
- platform: browser
- tags: online-ide, webcontainers, vscode, in-browser-development, dev-environments, codeflow, playgrounds, web-server, nodejs

## Member repositories
- stackblitz/core (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:44.576442+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 2026-08-29T17:17:27.220940+00:00, confidence not recorded.
  - readme: https://github.com/stackblitz/core (fetched 2026-08-28T04:10:44.576442+00:00, sha ed4cadebc52d)
  - homepage: https://stackblitz.com (fetched 2026-08-29T08:16:49.159585+00:00, sha 920309863f97)
  - site_page: https://stackblitz.com/integrations (fetched 2026-08-29T08:16:49.162123+00:00, sha a0627277ce93)
  - site_page: https://stackblitz.com/pricing (fetched 2026-08-29T08:16:49.163732+00:00, sha 5cb7f86cb121)
  - site_page: https://developer.stackblitz.com (fetched 2026-08-29T08:16:49.165661+00:00, sha 12772e89a424)
- Data as of 2026-08-30T08:39:29.467469+00:00.