# yuzutech/kroki

Creates diagrams from textual descriptions!

Repository: https://github.com/yuzutech/kroki
Canonical: https://ross.abutalabs.com/products/kroki
Homepage: https://kroki.io
Language: JavaScript
License: MIT
License Family: permissive
Topics: diagrams, text, images, api, erd, c4, plantuml, uml, ditaa, blockdiag, graphviz, svgbob, umlet, mermaid, bpmn, bytefield, hacktoberfest, excalidraw, pikchr, wavedrom
Last push: 2026-08-23T03:05:50+00:00

## Health v2 (maintenance only)
Score: 94/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 85, longevity 100
- inputs: {"age_days": 2792, "days_push": 10, "days_rel": 21, "gap_med": 46.5, "n_releases_24m": 11}
- flags: no_readme
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4297, forks 312 (observed 2026-08-28T04:08:41.524283+00:00)

## What it is
Kroki is a unified HTTP API service that converts textual diagram descriptions (PlantUML, Mermaid, GraphViz, Ditaa, Excalidraw, and many more) into images like SVG. It can be used via a free public instance or self-hosted with Docker, Podman, or Kubernetes.

## Use cases
- render diagrams from text descriptions via an api
- convert plantuml or mermaid source to svg
- embed diagrams in documentation from plain text
- self-host a diagram rendering service
- avoid installing multiple diagram tool dependencies
- generate architecture diagrams as code in ci

## When to choose
- you want one api supporting many diagram syntaxes instead of installing each tool
- you need diagram rendering in docs, wikis, or CI pipelines
- you want a self-hosted or public diagram-as-a-service endpoint

## When to avoid
- you need a graphical diagram editor rather than text-based rendering
- you only use one diagram tool that's easy to install locally
- you need offline rendering without any server or container

## Facets
- artifact type: service
- maturity: active
- function: api-framework, http-server, image-processing, templating
- domain: developer-tools, documentation, web-development
- platform: self-hosted
- tags: diagrams, diagram-as-code, plantuml, mermaid, graphviz, unified-api, svg, text-to-image, docker, web-server, nodejs

## Member repositories
- yuzutech/kroki (main) score 94

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:41.524283+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 2026-08-29T18:21:52.015098+00:00, confidence not recorded.
  - homepage: https://kroki.io (fetched 2026-08-29T09:11:26.426184+00:00, sha 00cfa8b4b517)
  - site_page: https://docs.kroki.io/kroki/setup/install (fetched 2026-08-29T09:11:26.435601+00:00, sha 8810170fd6bb)
  - site_page: https://docs.kroki.io/kroki/setup/encode-diagram (fetched 2026-08-29T09:11:26.437527+00:00, sha 920971b6bf74)
  - site_page: https://docs.kroki.io/kroki (fetched 2026-08-29T09:11:26.439495+00:00, sha 880704b8988e)
- Data as of 2026-08-30T08:39:29.467469+00:00.