What formatting is for
A three-hundred-character query on one line hides its own structure. Broken across lines with the clauses aligned, a missing join condition or a subquery in the wrong place becomes visible — which is the entire reason to format one before trying to debug it.
Only whitespace changes. Table names, literals and the order of clauses are untouched, so the formatted query is the same query.
Why it runs locally
A query being debugged usually contains real table names, real column names and sometimes real values from a production incident. Pasting that into a site that uploads it is a small data leak on a bad day and a reportable one on a worse day. Nothing here is transmitted.
Frequently asked questions
Does formatting change what my query does?
No — only whitespace and line breaks change. Nothing is reordered or rewritten.
Which dialects are supported?
The common syntax across MySQL, PostgreSQL, SQL Server and SQLite. Very vendor-specific constructs may be laid out plainly rather than idiomatically.
Is my query sent anywhere?
No. That matters because a query being debugged usually carries real schema names and sometimes real values.
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