Which SQL dialects does it handle?

The formatting is dialect-agnostic — it works on clause keywords and bracket structure, which are common to PostgreSQL, MySQL, SQLite, SQL Server and Oracle. Dialect-specific syntax passes through unchanged rather than being reformatted, so it won't be laid out idiomatically but it won't be broken either.

Why should I uppercase keywords?

It's a convention rather than a requirement, and its value is scanning speed: with SELECT, FROM and WHERE in capitals, the shape of the query is visible before you read any of it. Plenty of teams prefer lowercase throughout — the toggle is there because it is genuinely a matter of house style.

Is my query sent to a server?

No. The formatting happens in this page. That matters because queries routinely contain table names, column names and literal values that describe your schema and your customers — none of which should be pasted into a service that keeps it.

SQL Formatter

Take a query that arrived as one 400-character line and lay it out so you can read the logic. Each major clause — SELECT, FROM, JOIN, WHERE, GROUP BY — starts a new line, and the AND, OR and ON conditions are indented beneath the clause they belong to, which is where a query's actual complexity lives. String literals and quoted identifiers are copied through untouched, so a keyword inside quotes stays exactly as you typed it.

Your text

Uppercase keywords

SELECT rather than select. Purely cosmetic — SQL keywords aren't case sensitive.

One column per line

Splits a long SELECT list so each column sits on its own line.

Indent

Result

Nothing is uploaded — this tool runs inside your browser, so your files never leave your device.

Help us improve

Why use this tool

Each major clause on its own line, with AND, OR and ON indented under it
Optional keyword uppercasing, and one-column-per-line for wide SELECT lists
Function calls stay tight — COUNT(id), not COUNT (id)
Strings, comments and quoted identifiers are never rewritten

How it works

1Paste the query, however it arrived.
2Choose whether you want keywords uppercased and columns split onto their own lines.
3Copy the formatted query into your editor or ticket.

SQL Formatter — frequently asked questions

No. SQL treats whitespace between tokens as insignificant, and the only other change offered — uppercasing keywords — is cosmetic, since SQL keywords aren't case sensitive. String literals, and identifiers inside double quotes or backticks, are left byte for byte as written, so nothing inside them is touched.

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