For Developers
SQL, API docs, and quick everyday utilities.
System Design
SQL Generator
Describe the data you need in plain English, get the SQL — plus an optional ER diagram.
Try it →Quick Utilities
Regex Generator + Explainer
Describe a pattern in plain English, get a working regex with a part-by-part explanation.
Try it →Cron Expression Generator + Explainer
Describe a schedule in plain English, get the cron expression and its next run times.
Try it →Error / Stack-Trace Explainer
Paste an error or stack trace, get the root cause and concrete fix suggestions.
Try it →