Welcome to IndeX-Ray™

IndeX-Ray™ is a technology that helps users understand how databases run queries and why indexes are needed. Powered by PGlite running directly in your browser, watch as the database navigates its internal data structures to execute any query with any schema in real-time.

Let's get started using the instructions below to create a playground where you can begin to see databases in a whole new way.

Have questions? We're hanging out here on Discord!

Choose an option to set up your playground

Browse Examples

Schemas for common apps and use cases

Import or Create a Schema

Fully customize the setup

Basic Examples

Game Leaderboard

Games, players, and the scores they earned when playing

Phonebook

Yellow Pages, like the ones in your database when you don't index properly!

Tip: you can always edit the setup and query in the playground itself.

Query Doctor

Index-Ray™

We're still working on squeezing the full power of IndeX-Ray into a delightful mobile experience.

In the meantime you can come say hi in Discord or open up Index-Ray from your computer to begin exploring today!