Knex

What is it?

Knex is an open-source SQL query builder for Node.js that sits between raw SQL and full ORMs. It allows developers to construct SQL queries using JavaScript while preserving full control over query structure.

What does it do?

Knex generates SQL queries programmatically and handles parameter binding, migrations, and transactions. It supports databases such as PostgreSQL, MySQL, SQLite, MSSQL, and Oracle, without enforcing a specific data model.

Where is it used?

Knex is commonly used in backend APIs, microservices, and enterprise Node.js applications where SQL control, portability, and predictable performance are required. It is often paired with custom repositories or domain layers.

When & why it emerged

Knex emerged around 2013 as Node.js adoption grew and developers needed safer, more maintainable alternatives to string-based SQL. It was designed to balance SQL flexibility with improved developer ergonomics.

Why we use it at Internative

We use Knex in backend systems that require precise SQL control without the overhead of a full ORM. It allows us to build optimized queries, maintain database portability, and design clean data access layers.