alembic vs drizzle-orm — pkgdocs

pkgdocs/compare/alembic vs drizzle-orm

Comparing

Python

alembic

Database migration tool for SQLAlchemy — tracks schema changes as versioned scripts.

3.8M/ wk

v1.13.2

npm

drizzle-orm

Lightweight TypeScript ORM with SQL-first design, zero magic, and edge-runtime support.

1.9M/ wk

v0.33.0

Metric	alembic	drizzle-orm
Ecosystem	Python	npm
Difficulty	Intermediate	Intermediate
Weekly downloads	3.8M↑	1.9M
Latest version	v1.13.2	v0.33.0
Recipes	2	2

When to use each

alembic

Any production SQLAlchemy app. Column additions/renames, index creation, constraint changes, data backfills as part of schema migrations.

drizzle-orm

Edge runtimes (Cloudflare Workers, Vercel Edge), projects where you want full SQL control with types, lighter bundle size than Prisma, serverless environments.

When to skip each

alembic

Non-SQLAlchemy databases (use Flyway, Liquibase, or Django migrations). Throwaway dev DBs where you can afford to drop and recreate.

drizzle-orm

If you prefer Prisma's schema-first DX and Studio. Complex ORM features like polymorphism. Teams more comfortable with ActiveRecord-style ORMs.

Sample recipes

alembic

Set up Alembic in a new project
Auto-generate and apply a migration

drizzle-orm

Define a schema and query it
Insert and update records

alembic

drizzle-orm

Tags

When to use each

When to skip each

Sample recipes