# likec4/likec4

Visualize, collaborate, and evolve the software architecture with always actual and live diagrams from your code

Repository: https://github.com/likec4/likec4
Canonical: https://ross.abutalabs.com/products/likec4
Homepage: https://likec4.dev
Language: TypeScript
License: MIT
License Family: permissive
Topics: architecture, architecture-as-code, c4, diagrams
Last push: 2026-08-23T22:03:58+00:00

## Health v2 (maintenance only)
Score: 91/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 99, release rhythm 82, longevity 89
- inputs: {"age_days": 1258, "days_push": 10, "days_rel": 42, "gap_med": 5, "n_releases_24m": 92}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5542, forks 373 (observed 2026-08-28T04:09:22.038324+00:00)

## What it is
LikeC4 is a modeling language (DSL) and toolchain for describing software architecture as code, inspired by the C4 Model and Structurizr DSL. It generates live, interactive diagrams from architecture models, with a CLI, VSCode extension, and embeddable React/Web Components.

## Use cases
- visualize software architecture as code
- generate C4 diagrams from a DSL
- keep architecture diagrams up to date in git
- embed interactive architecture diagrams in docs or React apps
- validate architecture changes and catch drift
- expose architecture model to AI agents via MCP

## When to choose
- you want architecture-as-code with versioned, reviewable diagrams
- you need customizable notation and nested architecture levels beyond standard C4
- you want diagrams embedded in docs, websites, or React apps
- your team collaborates on architecture via Git workflows

## When to avoid
- you need drag-and-drop diagram editing rather than code-defined models
- you only need one-off ad-hoc diagrams without a maintained model
- you require full Structurizr compatibility or its specific tooling

## Facets
- artifact type: framework
- maturity: active
- function: documentation, data-visualization, developer-tools, cli, editor, mcp
- domain: developer-tools, documentation, web-development
- platform: cross-platform, cli, editor-plugin
- tags: architecture-as-code, c4-model, diagrams, dsl, software-architecture, vscode-extension, react-components, diagrams-as-code, nodejs, web

## Member repositories
- likec4/likec4 (main) score 91

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:22.038324+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 2026-08-29T17:55:41.824012+00:00, confidence not recorded.
  - readme: https://github.com/likec4/likec4 (fetched 2026-08-28T04:09:22.038324+00:00, sha f48c34470de4)
  - homepage: https://likec4.dev (fetched 2026-08-29T08:51:16.538209+00:00, sha 7c15f047803a)
  - site_page: https://likec4.dev/tutorial (fetched 2026-08-29T08:51:16.551768+00:00, sha c0511b9b7a56)
- Data as of 2026-08-30T08:39:29.467469+00:00.