Diesel vs Kysely
On the evidence we track, Kysely leads this comparison with a composite score of 74/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
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.
Diesel
A Rust library that provides type-safe database access with compile-time verification, featuring both a query builder API and raw SQL support across multiple database systems including PostgreSQL, MySQL, and SQLite.
Kysely
LeaderA 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.
- PostgreSQL
- MySQL
- SQLite
Diesel
- Oracle
- Firebird
Kysely
Leader- 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
- Microsoft SQL Server
Diesel or Kysely: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.