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SQL Formatter
Paste any SQL query and get it back clean – properly indented, keywords uppercased, and easy to read – in seconds, right in your browser.
✓ Free✓ No signup✓ Privacy first✓ Runs in your browser
SQL Formatter – ToolPremier

Format SQL in your browser · no server · supports SELECT INSERT UPDATE DELETE CREATE

How it works
Convert in three steps

1. Paste your SQL

Drop in any SQL query - a single SELECT, a complex JOIN with subqueries, a stored procedure, or a minified one-liner from a log.

2. Choose your dialect

Select your database dialect (MySQL, PostgreSQL, SQL Server, SQLite) to apply the correct keyword casing and syntax rules.

3. Copy the formatted query

Get the cleaned, indented SQL back in seconds - ready to paste into your query editor, documentation, or code review.

FAQ
Common questions
Unformatted SQL is hard to read, harder to debug, and nearly impossible to review in a pull request. Consistent formatting – uppercase keywords, aligned columns in SELECT lists, indented subqueries – makes query structure immediately obvious, which reduces the time to spot logic errors, missing joins, or incorrect conditions. Most style guides for SQL use uppercase reserved words and indentation to separate clauses.
No. SQL is case-insensitive for keywords and whitespace-insensitive for query logic. Reformatting a query changes only its visual presentation – the execution plan, output, and performance are identical to the original unformatted version.
The formatter covers MySQL, PostgreSQL, SQL Server (T-SQL), and SQLite syntax – the four most widely used relational databases. Dialect selection affects keyword handling and a few syntax variations. For standard ANSI SQL queries without vendor-specific functions, any dialect setting will produce a clean result.
Yes. Paste the full stored procedure or trigger body – the formatter handles multi-statement SQL blocks, conditional logic (IF, CASE), and loop constructs. For very large or complex procedures, review the output carefully: automated formatters occasionally need manual adjustment around unusual syntax or proprietary extensions.
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About the SQL Formatter
SQL written under pressure – in a debugging session, scraped from a log, or copied from a minified ORM output – is rarely readable. Long JOIN chains with no indentation, SELECT lists that run across a single line, and nested subqueries without visual hierarchy all make queries significantly harder to audit and review. This formatter parses and restructures SQL into a clean, consistently indented format with uppercased keywords and aligned clause blocks. It supports MySQL, PostgreSQL, SQL Server, and SQLite dialects, and runs entirely in your browser – so you can safely paste queries that contain internal table names, column names, or business logic without sending them anywhere.
Benefits
  • Formats complex queries - JOINs, subqueries, CTEs, CASE expressions, and stored procedures.
  • Dialect-aware - handles MySQL, PostgreSQL, T-SQL, and SQLite keyword and syntax differences.
  • Uppercase keywords, indented clauses - consistent output following widely used SQL style conventions.
  • Client-side processing - query content never leaves your browser.
Privacy
All SQL formatting runs in your browser. Query text – including table names, column names, and any embedded values – is never transmitted to any server.