pgModeler
An open-source PostgreSQL modeling tool for designing, reverse-engineering, diffing and deploying database schemas.
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About pgModeler
pgModeler is a locally installed schema engineering tool built specifically for PostgreSQL. You design schemas visually as diagrams, reverse-engineer existing databases, compare and sync schemas across environments, and automate deployments with its command-line interface. Schemas are stored in open files, which works well with Git.
It has no cloud dependency and no telemetry. A community edition is available as source code, while the paid pgModeler Plus provides pre-built binaries and extra workflow features. Release 1.2.3 came out in February 2026.
Strengths
- Deep PostgreSQL-specific modeling
- Reverse engineering and schema diff and sync
- CLI for automated deployments
- No telemetry and schemas kept in local files
Limitations
- PostgreSQL only
- Pre-built binaries require the paid Plus edition; otherwise you build from source
Details
- Pricing
- FreemiumSource code is free; pgModeler Plus with pre-built binaries is paid, with 50% off for students.
- License
- Open source, license not stated
- Developer
- Nullptr Labs
- Platforms
- Windows, macOS, Linux, Command line
- How it runs
- Downloadable app
- Account
- Not required
- Works offline
- Yes
- Best suited for
- PostgreSQL developers and DBAs who design schemas as diagrams
- Categories
- Database tools, Developer tools
- Last verified
- Added
- Provenance
- Facts checked against the developer's own pages and store listings, 1 sources on file.
Alternatives to pgModeler
Compare allSoftware that can replace pgModeler for an important use case, and what changes if you switch.
DbSchema
A visual database designer and client that turns SQL and NoSQL databases into ER diagrams.
DbSchema is a closed-source visual designer supporting more than 100 SQL and NoSQL databases, with HTML documentation and Git-versioned models, and paid advanced features.
ChartDB
An open-source tool for visualizing and editing database schema diagrams, hosted or self-hosted.
ChartDB is an AGPL-3.0 web tool, self-hostable, that diagrams an existing database from a single query and exports DDL, with less PostgreSQL-specific depth than pgModeler.
dbdiagram.io
A web tool for drawing database relationship diagrams by writing a simple text-based language.
dbdiagram.io is a free browser-only tool that draws schemas from a text language, not open source, with no reverse engineering, diff or deployment features.
Similar software
Related functionality, not necessarily a direct replacement.
Atlas
A command-line tool that manages database schemas as code and plans migrations automatically.
pgAdmin
The standard open-source administration tool for PostgreSQL.
Flyway
A database migration tool that applies versioned schema changes across many database engines.
SchemaSpy
A command-line tool that generates browsable HTML documentation and ER diagrams from a database schema.
PostgreSQL
The open-source relational database with 35 years behind it, known for correctness, extensibility and a long feature list.
