vioscaleAI
Comparison

Ecto 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.

Ecto full profile →Kysely full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Ecto52
★Kysely74
Score
vioscaleAI score
Ecto52 / 100low · 39%
Kysely74 / 100high · 78%
Pricing
Free tier
Ecto✓
Kysely✓
Model
Price level
Ectofree
Kyselyfree
Transparent
Ecto–
Kysely✓
Integrations
Count
Ecto5
Kysely21
Security
Scorecard
Ecto5.6
Kysely7.2
Vulnerabilities
Reliability
Status page
Ecto✓
Kysely–
Adoption
Dependent repos
Ecto12,249
Kysely1,155
Github stars
Ecto6,497
Kysely14,269
Package downloads weekly
Ecto–
Kysely20,754,444
Activity
Commits last 30d
Ecto10
Kysely59
Release
Cadence days
Ecto–
Kysely10
History
License
Spdx
EctoApache-2.0
KyselyMIT
Language
Primary
Content
Faq
Ecto4 items
Kysely6 items

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

Provides a way for Elixir applications to interact with SQL databases using Elixir code instead of raw SQL, with support for defining data structures, managing schema evolution through migrations, and handling relationships between data entities.

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 sourceFree tier
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✓
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.

In common (2)
  • PostgreSQL
  • MySQL

Ecto

6 total - 4 not shared
  • MSSQL
  • SQLite3
  • ClickHouse
  • ETS
Independently observed

Kysely

Leader
25 total - 23 not shared
  • 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
  • SQLite
  • Microsoft SQL Server
Independently observed
Still deciding?

Ecto 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.