Comparison

Ecto vs Kysely

On the evidence we track, Kysely leads this comparison with a composite score of 70/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Ecto52
Kysely70
Score
Vioscale score
Ecto52 / 100low · 39%
Kysely70 / 100high · 79%
Pricing
Free tier
Ecto
Kysely
Model
Price level
Ectofree
Kyselyfree
Transparent
Ecto
Kysely
Integrations
Count
Ecto6
Kysely21
Reliability
Status page
Ecto
Kysely
Adoption
Dependent repos
Ecto12,249
Kysely1,155
Github stars
Ecto6,487
Kysely14,168
Package downloads weekly
Ecto
Activity
Commits last 30d
Ecto12
Kysely25
Release
Cadence days
Ecto
Kysely10
History
License
Spdx
KyselyMIT
Language
Primary

Capabilities

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

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

What each one is

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

Ecto

A library that enables type-safe database queries and schema mapping for Elixir, supporting multiple database backends including PostgreSQL, MySQL, and SQLite with language-integrated querying.

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.

Ecto

Open source
as of verify ↗

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
Ecto
Kysely
CLI
Ecto
Kysely
Deployment
Cloud / SaaS
Ecto
Kysely
Self-hosted
Ecto
Kysely

Integrations

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

Ecto

6 total
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite3
  • ClickHouse
  • ETS
Independently observed

Kysely

Leader
21 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
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.