Rell Playground
Write Rell. Run it for real.Write Rell. Run it with chr.
Each run compiles your code with the Chromia CLI (chr test, Rell 0.16.7) and executes it against a fresh PostgreSQL database. Real compiler errors, real query results, nothing simulated.
Edit a Rell dapp module and its test in the browser, starting from the examples. To compile and run them, use the Chromia CLI on your machine (chr test, Rell 0.16.7), as shown in the Run it locally panel.
main.rell is your dapp module (entities, operations, queries). test.rell is a test module: it calls your code, runs transactions with rell.test.tx(…), and prints. Each run gets an empty database; 10 s limit.
Run the same code on your machine with the 10-minute Get Started, or read the Rell guide.
A preview runner built for this redesign, not an official Chromia service. Code you run is not stored.