SQL Decoder · Early preview
Read any SQL in plain language.
Paste a query to see what it does, step by step, and where every column really comes from. Useful for reviewing someone else's code, documenting old reports, or giving an AI the context it needs.
Private by design. Your SQL is read entirely in your browser. It is never sent to a server, never stored and never seen by anyone, including us. Close the tab and it's gone. Still, follow your company's rules on sharing code.
Reads the structure
The query is parsed into its real structure, not guessed at, so joins, filters and groups are explained accurately.
Runs in order
Steps are shown in the order a database actually runs them, which is rarely the order they're written.
Traces columns
Every output column is followed back through in-between steps to the table it came from.