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ORM & Database ToolsUnclaimed

Kysely

A library for writing TypeScript-based SQL queries with compile-time type checking

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Also known as
kysely

What is 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

Kysely pricing

We don't have Kysely's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.

Pricing as of verify at live pricing ↗Independently observed
Open sourceFree tier

Completely free and open source (MIT license)

What Kysely does

The capabilities that matter for orm & database tools, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.

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

Platform & deployment

Independently observed
Platforms
  • CLI
  • Web
Deployment
  • Cloud / SaaS
  • Self-hosted

Integrations (21)

Independently observed
  • 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

Security & compliance

Known vulnerabilities: 4 (4 in the last 12 months), max severity HIGH sourcea count reflects scale & disclosure, not quality

Kysely FAQ

Common questions about Kysely, answered from independent, dated evidence.

What is 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. It is indexed under ORM & Database Tools.

Source: https://kysely.dev

Is Kysely free to use?

Kysely is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.

Source: https://kysely.dev

What platforms does Kysely support?

Kysely supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.

Source: https://kysely.dev

Can Kysely be self-hosted?

Yes. Kysely can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.

Source: https://kysely.dev

What does Kysely integrate with?

We have confirmed 20 integrations for Kysely, including Supabase, Cursor, Windsurf, GitHub Copilot, ChatGPT, Claude, AirTrail and AWS Blocks, plus 12 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.

Source: https://kysely.dev

Is Kysely open source?

Yes. Kysely is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.

Source: https://github.com/kysely-org/kysely

Kysely alternatives

Other orm & database tools we track, ranked by the same independent score.

All Kysely alternatives, ranked →

Compare Kysely

Side by side against other orm & database tools, attribute by attribute, with a source on every value.

Independent · unbought · dated

The vioscaleAI score: one lens on the evidence

Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Kysely, not the verdict.

Balanced composite 69 / 100
high · 79%
Signal contributions to the composite score
SignalScoreWeightContributionEvidence
Package downloads910.1715.7✓
Capabilities810.086.7✓
Release cadence940.076.3✓
Development activity360.124.3✓
Dependent projects510.084.1✓
Security score730.053.9✓
Stars780.032.6✓
Integrations390.052.0✓
Security posture00.090.0-
Developer Q&A activity00.080.0-

Computed . Re-weight it by intent, or see the full method.

All data & sourcesshow ↓

Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.

Activity

AttributeValueEvidence
Commits last 30d13mediumsource · 2026-09-10 · 65%

Adoption

AttributeValueEvidence
Github stars14,214highsource · 2026-09-10 · 90%
Package downloads weekly10,021,804highsource · 2026-09-10 · 85%
Dependent repos1,155highsource · 2026-09-10 · 85%

Content

AttributeValueEvidence
Faq6 itemsmediumsource · 2026-09-10 · 67%

Features

AttributeValueEvidence
CapabilitiesRaw sql: Yes · Multi db: Yes · Languages: TypeScript, JavaScript (Node, Deno, Bun, Cloudflare Workers, browsers) · Relations: Yes · Migrations: Yes · Studio gui: Nomediumsource · 2026-09-14 · 60%

Integrations

AttributeValueEvidence
Count21mediumsource · 2026-08-14 · 60%

Language

AttributeValueEvidence
PrimaryTypeScripthighsource · 2026-09-10 · 90%

License

AttributeValueEvidence
SpdxMIThighsource · 2026-09-10 · 99%

Pricing

AttributeValueEvidence
Free tierYesmediumsource · 2026-09-14 · 60%
Modelopen_sourcemediumsource · 2026-09-14 · 60%
Price levelfreemediumsource · 2026-09-14 · 60%
TransparentYesmediumsource · 2026-08-14 · 60%

Release

AttributeValueEvidence
Cadence days10mediumsource · 2026-09-10 · 70%
History20 itemsmediumsource · 2026-09-10 · 70%

Security

AttributeValueEvidence
Scorecard7.3highsource · 2026-09-10 · 90%
VulnerabilitiesCount: 4 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=kysely&per_page=100 · Last 12m: 4 · Max severity: HIGHhighsource · 2026-09-10 · 90%
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