T-SQL Online - Practice SQL Server in your browser — no install needed

Hey Product Hunt 👋 I'm a CS student, and while learning SQL Server at university I kept hitting the same wall: every free online SQL playground runs MySQL or SQLite — not real T-SQL. And installing SQL Server just to practice a few queries felt like overkill. So I built T-SQL Online: a browser sandbox that actually speaks Transact-SQL. You can write queries, create tables with real constraints, IDENTITY columns, stored procedures and triggers, and see results instantly — nothing to install or set up. Two things I'm especially proud of: • A live, interactive ER diagram that redraws itself as you build your schema • Collaborative rooms (beta) — edit and run SQL together in real time, great for studying with a friend or teaching a class It's free to use, with optional premium plans for more databases and storage. I built it mostly for students like me, but it's turned out handy for devs brushing up on SQL Server and teachers who need an instant sandbox. I'd love your feedback — which T-SQL features would you want next? 🎉 Launch deal: use code PRODUCTHUNT for 30% off any plan this week. Thanks for checking it out! 🙌