Drizzle vs Kysely

Drizzle and Kysely are TypeScript-first database tools competing in the type-safe SQL space, offering alternatives to heavier ORMs like Prisma.

Overview

Drizzle is a TypeScript ORM that feels like writing SQL, with a schema declaration system, migrations, and Drizzle Studio for database management. Kysely is a type-safe SQL query builder — not an ORM — that provides TypeScript autocompletion for raw SQL queries without an abstraction layer.

Key Differences

Philosophy: Drizzle is an ORM with SQL-like syntax. Kysely is a query builder that generates SQL without ORM concepts (no models, relations, or migrations). Schema management: Drizzle provides schema declarations and migration generation. Kysely requires external schema management. Learning curve: Kysely is simpler if you know SQL — it's just typed SQL. Drizzle adds ORM concepts on top. Relations: Drizzle supports relational queries (like Prisma's include). Kysely is joins-only (pure SQL approach). Bundle size: Both are lightweight compared to Prisma. Kysely is slightly smaller as it does less.

Verdict

Choose Drizzle for a full-featured TypeScript ORM that still feels like SQL with schema management and relations. Choose Kysely for a minimal, zero-abstraction query builder when you want typed SQL without ORM overhead.