Drizzle is a lightweight TypeScript toolkit for working with relational databases, best known for Drizzle ORM, a thin and type-safe layer between application code and SQL. Rather than hiding the database behind a heavy abstraction, it keeps SQL concepts visible while adding compile-time checks, so a schema change in one place is reflected immediately in the queries that use it and mistakes surface during development.
A defining characteristic is that the schema is written in TypeScript and serves as the single source of truth for tables, relations, and constraints. From that definition the toolkit generates SQL migrations, infers result types, and builds a query builder that reads close to the SQL a developer would write by hand. This approach keeps the mental model familiar for anyone who already understands relational databases and joins.
The project supports several database engines and serverless drivers, which makes it a common choice for applications deployed on edge platforms or in short-lived functions where connection overhead matters. Companion tools such as Drizzle Kit handle migration generation and schema introspection, while Drizzle Studio offers a visual browser for inspecting data during local development and debugging sessions.
Compared with traditional object relational mappers that manage identity maps, lazy loading, and unit-of-work patterns, Drizzle is deliberately minimal and predictable. Queries are explicit, generated SQL is easy to inspect, and there is little hidden runtime behavior to debug. Developers who prefer full SQL control can drop down to raw queries, while those who want convenience can use the relational query API for nested results.
Drizzle fits TypeScript teams building APIs, SaaS products, and data-driven applications who want strong typing without giving up visibility into their database. It is open source, well documented, and surrounded by an active community contributing adapters and integrations. As with any schema-first tool, keeping migrations reviewed and versioned is important, especially when several services share the same database over time.