Comparison

Kysely vs SeaORM

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.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★Kysely74
SeaORM60
Score
vioscaleAI score
Kysely74 / 100high · 78%
SeaORM60 / 100low · 35%
Pricing
Free tier
Kysely✓
SeaORM✓
Model
Price level
Kyselyfree
SeaORMfree
Transparent
Kysely✓
SeaORM–
Integrations
Count
Kysely21
SeaORM–
Reliability
Status page
Kysely–
SeaORM✓
Adoption
Dependent repos
Kysely1,155
SeaORM429
Github stars
Kysely14,269
SeaORM9,924
Package downloads weekly
SeaORM–
Activity
Commits last 30d
Kysely59
SeaORM33
Release
Cadence days
Kysely10
SeaORM6
History
Kysely20 items
SeaORM20 items
License
Spdx
KyselyMIT
Language
Primary
SeaORMRust
Content
Faq
Kysely6 items
SeaORM3 items

Capabilities

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

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

What each one is

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

Kysely

Leader

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

SeaORM

SeaORM is a feature-rich object-relational mapper for Rust that combines type-safe query construction, schema management, and advanced relationship handling to simplify building REST, GraphQL, and gRPC APIs.

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

Leader
Open sourceFree tier

Completely free and open source (MIT license)

as of verify ↗

SeaORM

Open sourceFree tier

Free and open-source

as of verify ↗

Platform & deployment

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

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

Integrations

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

Kysely

Leader
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

SeaORM

Not documented yet.

Still deciding?

Kysely or SeaORM: 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.