I didn't have a PC for my database class, so I built my own T-SQL Sandbox in the browser

Hey everyone.

I'm a systems engineering student, and recently I ran into a major issue: I was left without a computer right in the middle of the semester. I desperately needed to practice for my database assignments and thought I could easily find an online sandbox to get by.

I was wrong. Most web-based SQL editors don't support Transact-SQL properly, or they lock essential features behind a paywall before you can even do the basics.

I survived those weeks however I could, but that frustration stuck with me. As soon as I finally got my PC back, we decided to solve this exact problem at our 2-person startup (Zone 0). Today, we are releasing the first version of T-SQL Online (https://tsqlsandbox.online).

It's a web environment to practice T-SQL directly in your browser. No local SQL Server installations, no weird server configurations, and no licenses. It is exactly the tool I wish I had when my computer broke down.