sqlalchemy/alembic

Health v2 · maintenance only

Adoption not part of the score

4342 stars · 365 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Alembic is a database schema migration tool for SQLAlchemy, supporting versioned migration scripts with upgrade/downgrade steps. It can autogenerate migrations by diffing the database schema against SQLAlchemy models and supports transactional DDL and offline SQL script generation.

Use cases

• manage database schema migrations for a SQLAlchemy project
• autogenerate migration scripts from changed ORM models
• upgrade and downgrade database schema versions
• generate SQL migration scripts for DBA review
• apply ALTER statements to evolve table structures

When to choose

• your application uses SQLAlchemy and needs versioned schema migrations
• you want autogenerated migrations from Python model changes
• you need transactional DDL support on PostgreSQL or SQL Server

When to avoid

• you use an ORM other than SQLAlchemy
• you need a database-agnostic migration tool without SQLAlchemy
• you only need simple schema setup without version tracking

Facets

cli-tool · maturity stable

database cli developer-tools databases developer-tools backend python cli cross-platform sqlalchemy database-migrations schema-migration ddl autogenerate-migrations

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markdown · JSON · MCP: product_card(name="sqlalchemy/alembic")