Igal Klebanov

Senior Software Engineer in Tel Aviv. I co-lead Kysely and work on TypeScript and database tooling in my free time.

Open source

01
Kysely
A type-safe SQL query builder for TypeScript.
What a ride! we made it to 20M+ downloads per week on npm and 14k+ github stars.
1. Co-lead
  Apr 2025 – present
  Project direction, API design, reviews, and community support.
2. Member
  Mar 2023 – Apr 2025
  Shaping process and building the first-party ecosystem around Kysely.
3. Collaborator
  Sep 2022 – Mar 2023
  Actively involved in the community and discussing design decisions with Sami, the author.
4. Contributor
  Jul 2022 – Sep 2022
  First merged contribution: REPLACE INTO support.
My contributions include SQL Server support, window functions, type-safe JSON traversal, MERGE queries, controlled transactions and savepoints, query cancellation, kysely-ctl, and kysely-postgres-js.
02
Zod
Schema validation with static type inference.
1. Contributor
  Nov 2022 – present
  First merged contribution: typed fatal issues.
My contributions include template literal validation, date and time checks, and BigInt validation.
03
Prisma Dev
Local Prisma Postgres for development.
1. Author
  May 2025 – Feb 2026
  Built the local Prisma Postgres development experience.
04
@prisma/studio-core
An embeddable database editor for exploring schemas, browsing data, and editing rows.
1. Author and lead
  Mar 2025 – Feb 2026
  Created the embeddable core of Prisma Studio.