vioscaleAI
Comparison

Dapper 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.

Dapper full profile →Kysely full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Dapper50
★Kysely74
Score
vioscaleAI score
Dapper50 / 100low · 33%
Kysely74 / 100high · 78%
Pricing
Free tier
Dapper–
Kysely✓
Model
Dapper–
Kyselyopen_source
Price level
Dapper–
Kyselyfree
Transparent
Dapper–
Kysely✓
Integrations
Count
Dapper–
Kysely21
Security
Scorecard
Dapper–
Kysely7.2
Vulnerabilities
Reliability
Status page
Dapper✓
Kysely–
Adoption
Dependent repos
Dapper477
Kysely1,155
Github stars
Dapper18,402
Kysely14,269
Package downloads weekly
Dapper–
Kysely20,754,444
Activity
Commits last 30d
Dapper3
Kysely59
Release
Cadence days
Dapper26
Kysely10
History
Dapper19 items
Kysely20 items
License
Spdx
Dapper–
KyselyMIT
Language
Primary
DapperC#
KyselyTypeScript
Content
Faq
Dapper–
Kysely6 items

Capabilities

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

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

What each one is

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

Dapper

A micro-ORM for .NET that extends ADO.NET connections to execute SQL queries and stored procedures, supporting both synchronous and asynchronous operations with features for object mapping, dynamic SQL building, and multi-result set processing.

Independently observed

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

Pricing

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

Dapper

Pricing not documented yet.

Kysely

Leader
Open sourceFree tier

Completely free and open source (MIT license)

as of verify ↗

Platform & deployment

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

Platforms
Web
Dapper–
Kysely✓
Deployment
Cloud / SaaS
Dapper–
Kysely✓
Self-hosted
Dapper–
Kysely✓

Integrations

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

Dapper

Not documented yet.

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
Still deciding?

Dapper 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.