---
id: features
title: Features
sidebar_label: Features
---

- **Typesafe SQL** - Automatically generate TS types for parameters/results of SQL queries of any complexity.
- **SQL file support** - Extract queries from both SQL and TS files.
- **Watch mode** - Generate query types as you write them.
- **Interpolation helpers** - Useful parameter interpolation helpers for arrays and objects.
- **Single source of types** - No need to define your DB schema in TypeScript, your running DB is the live source of type data.
- **Prevents SQL injections** - PgTyped doesn't do explicit parameter substitution. Instead, queries and parameters are sent separately to the DB driver, allowing parameter substitution to be safely done by the PostgreSQL server.