# nullptrlabs/pgmodeler

Open-source data modeling tool designed for PostgreSQL. No more typing DDL commands. Let pgModeler do the work for you!

Repository: https://github.com/nullptrlabs/pgmodeler
Canonical: https://ross.abutalabs.com/products/pgmodeler
Homepage: https://pgmodeler.io
Language: C++
License: GPL-3.0
License Family: copyleft
Topics: c-plus-plus, entity-relationship-diagram, ddl-commands, sql-standards, pgmodeler, postgresql, database-modeling, code-generator, database
Last push: 2026-05-22T19:16:44+00:00

## Health v2 (maintenance only)
Score: 73/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 83, release rhythm 45, longevity 100
- inputs: {"age_days": 5123, "days_push": 103, "days_rel": 208, "gap_med": 111, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3585, forks 422 (observed 2026-08-28T04:08:11.120793+00:00)

## What it is
pgModeler is an open-source, cross-platform visual database modeling tool built specifically for PostgreSQL, letting users design entity-relationship diagrams and generate DDL/SQL scripts without hand-writing them. It is written in C++ with Qt and offers a free Community Edition plus a commercial Plus edition with reverse engineering, diff/sync, and database management features.

## Use cases
- design a postgresql database schema visually with an ER diagram
- generate DDL SQL scripts from a database model instead of typing them
- model tables, views, relationships, triggers and functions for postgres
- validate a database model for inconsistencies before deployment
- teach database modeling with an open-source ERD tool
- maintain complex postgres schemas with version-controlled model files

## When to choose
- you work primarily with PostgreSQL and want deep support for its specific features
- you prefer visual drag-and-drop schema design over writing DDL by hand
- you want a free, open-source, cross-platform modeling tool with no cloud dependency
- you need Git-friendly schema model files stored locally

## When to avoid
- you need reverse engineering or database diff/sync, which require the paid Plus edition
- you model databases other than PostgreSQL (e.g., MySQL, SQL Server)
- you only need a lightweight SQL client or query browser rather than a modeler

## Facets
- artifact type: application
- maturity: active
- function: gui, developer-tools, database, documentation
- domain: databases, developer-tools, web-development
- platform: windows, cross-platform
- tags: postgresql, erd, data-modeling, ddl-generation, sql, qt, schema-design, reverse-engineering, database-diff, linux, macos, desktop

## Member repositories
- nullptrlabs/pgmodeler (main) score 73

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:11.120793+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 2026-08-29T18:33:55.094096+00:00, confidence not recorded.
  - readme: https://github.com/nullptrlabs/pgmodeler (fetched 2026-08-28T04:08:11.120793+00:00, sha 284c9a39478c)
  - homepage: https://pgmodeler.io (fetched 2026-08-29T09:27:24.081139+00:00, sha fd3a3ea7f95e)
  - site_page: https://pgmodeler.io/support/installation (fetched 2026-08-29T09:27:24.091298+00:00, sha 67f79bf3ad32)
  - site_page: https://pgmodeler.io/support/docs (fetched 2026-08-29T09:27:24.093839+00:00, sha 0fa4ee7bc9f8)
  - site_page: https://pgmodeler.io/about (fetched 2026-08-29T09:27:24.096001+00:00, sha 49168764c9ab)
- Data as of 2026-08-30T08:39:29.467469+00:00.