Knex.js vs Kysely
No clear leader: Kysely (70.3) and Knex.js (66.2) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
Capabilities
Feature-by-feature on the axes that matter for orm & database tools. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Knex.js
An open-source Node.js package supporting nine SQL databases including PostgreSQL, MySQL, SQLite, and Oracle. Provides type-safe query building with TypeScript support, schema migrations, transaction handling with savepoints, connection pooling, and both promise and callback-based interfaces.
Kysely
A JavaScript and TypeScript SQL query builder that provides compile-time type safety and database schema validation. It works across multiple runtimes (Node, Deno, Bun, Cloudflare Workers, browsers) with zero runtime dependencies and emphasizes composable, type-safe queries over higher-level abstractions.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
Knex.js
Not documented yet.
Kysely
- Supabase
- Cursor
- Windsurf
- GitHub Copilot
- ChatGPT
- Claude
- Claude Code
- AirTrail
- AWS Blocks
- Conar
- EmbedPDF
- Hot Updater
- inlang
- Notesnook
- OpenClaw
- Reflect
- Sink
- Stacks
- StudioCMS
- Tunarr
- ZenStack
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.