schemacrawler/SchemaCrawler
Free database schema discovery and comprehension tool observed · 2026-08-28
Health v2 · maintenance only
99/100
- Activity 99
- Release rhythm 99
- Longevity 100
Flags: no_license no_readme
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 7
- age_days: 4064
- days_rel: 9
- days_push: 9
- n_releases_24m: 54
Adoption not part of the score
1826 stars · 208 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
SchemaCrawler is a free Java-based database schema discovery and comprehension tool that extracts database metadata via JDBC and outputs it as readable text, HTML5, JSON, YAML, or Graphviz DOT diagrams. It includes grep-style schema searching, schema linting, scripting support, and an AI MCP server.
Use cases
- document my database schema automatically
- generate entity-relationship diagrams from a database
- diff database schemas between environments
- lint my database schema for design issues
- search for tables and columns by regex
- extract database metadata as JSON or YAML
- explore an unfamiliar database schema
When to choose
- you need readable, diff-friendly schema documentation across many JDBC-compatible databases
- you want ER diagrams generated from a live database via Graphviz DOT
- you want to automate schema checks in CI pipelines
When to avoid
- you need a full data modeling or migration tool rather than metadata extraction
- your environment cannot run Java SE 17+
- you need a GUI-first database design experience
Facets
cli-tool · maturity active
database documentation reverse-engineering cli developer-tools databases developer-tools documentation jvm cross-platform cli jdbc schema-discovery er-diagrams schema-lint database-metadata graphviz mcp-server
4 sources
- homepage: http://www.schemacrawler.com/ · fetched 2026-08-29 · 3368c3a7729b
- site_page: https://www.schemacrawler.com/getting-started.html · fetched 2026-08-29 · 07b923e7d1bb
- site_page: https://www.schemacrawler.com/index.html · fetched 2026-08-29 · 90479b57a3b9
- site_page: https://www.schemacrawler.com/faq.html · fetched 2026-08-29 · e95f154a594c
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| schemacrawler/SchemaCrawler | main | 99 |
For agents
markdown · JSON · MCP: product_card(name="schemacrawler/SchemaCrawler")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem