Comparison

Kysely vs MikroORM

No clear leader: Kysely (73.6) and MikroORM (69.2) 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.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Kysely74
MikroORM69
Score
vioscaleAI score
Kysely74 / 100high · 78%
MikroORM69 / 100high · 79%
Pricing
Free tier
Kysely✓
MikroORM✓
Model
Price level
Kyselyfree
MikroORMfree
Transparent
Kysely✓
MikroORM✓
Integrations
Count
Kysely21
MikroORM10
Adoption
Dependent repos
Kysely1,155
MikroORM914
Github stars
Kysely14,269
MikroORM9,251
Package downloads weekly
MikroORM943,729
Activity
Commits last 30d
Kysely59
MikroORM100
Release
Cadence days
Kysely10
MikroORM4
History
Kysely20 items
MikroORM20 items
License
Spdx
KyselyMIT
MikroORMMIT
Language
Primary
MikroORMTypeScript
Content
Faq
Kysely6 items
MikroORM5 items

Capabilities

Feature-by-feature on the axes that matter for orm & database tools. “-” means undocumented, not absent.

Core
Type-safe queries
Kysely✓
MikroORM✓
Schema migrations
Kysely✓
MikroORM✓
Relations / joins API
Kysely✓
MikroORM✓
Languages
KyselyTypeScript, JavaScript (Node, Deno, Bun, Cloudflare Workers, browsers)
MikroORMTypeScript, JavaScript (Node.js)
Modelling
Schema-first modelling
Kysely✓
MikroORM✓
Flexibility
Raw SQL escape hatch
Kysely✓
MikroORM✓
Portability
Multiple database backends
Kysely✓
MikroORM✓
Ops
Connection pooling
Kysely✗
MikroORM-
DX
Data browser / studio
Kysely✗
MikroORM-

What each one is

The product in its own terms, so the numbers below have context.

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.

Independently observed

MikroORM

An object-relational mapper that enables type-safe database interactions with support for multiple database systems including PostgreSQL, MySQL, SQLite, MongoDB, and MSSQL.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Kysely

Open sourceFree tier

Completely free and open source (MIT license)

as of verify ↗

MikroORM

Open sourceFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Kysely✓
MikroORM✗
CLI
Kysely✗
MikroORM✓
Deployment
Cloud / SaaS
Kysely✓
MikroORM✓
Self-hosted
Kysely✓
MikroORM✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Kysely

25 total
  • 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
  • PostgreSQL
  • MySQL
  • SQLite
  • +1 more
Independently observed

MikroORM

14 total
  • Kysely
  • Shopify
  • Nest.js
  • Express
  • NextJS
  • Electron.js
  • Koa
  • Elysia.js
  • Inversify
  • Accounts.js
  • GraphQL
  • Bun
  • RealWorld
  • Nest
Independently observed
Still deciding?

Kysely or MikroORM: 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.