Format and beautify SQL queries with syntax highlighting. Supports 6 dialects — Standard SQL, MySQL, PostgreSQL, T-SQL, PL/SQL, and SQLite.
SELECT u.id, u.name, u.email, count(o.id) AS order_count, sum(o.total) AS total_spent FROM users u LEFT JOIN orders o ON u.id = o.user_id WHERE u.created_at >= "color:#34D399">'2026-01-01' AND u.status = "color:#34D399">'active' GROUP BY u.id, u.name, u.email HAVING count(o.id) > 0 ORDER BY total_spent DESC LIMIT 10;
To format SQL: paste your query — the tool adds proper indentation, capitalizes keywords, and aligns clauses for readability. Supports MySQL, PostgreSQL, SQLite, and SQL Server.
FreeToolHub SQL Formatter is a free browser-based tool that beautifies and validates SQL queries, no signup, no upload.
About this tool
Format and beautify SQL queries with syntax highlighting. MySQL, PostgreSQL, T-SQL. Compress mode for production. Free, no signup.
What Is the SQL?
The SQL is a free browser-based developer tool that handles sql formatter operations entirely on your device without any server round-trips. Built with standard web APIs and JavaScript, it processes your input locally — no code, data, or file content is ever uploaded to a remote server. The tool supports sql beautifier standards and handles edge cases like Unicode characters, special encoding modes, and large inputs. Performance is optimized for files up to 10MB+ using streaming parsers where applicable. Unlike online alternatives that require accounts or impose usage limits, this tool is completely free with no caps.
Who Should Use This Tool?
Software developers use this tool daily for sql formatter tasks during coding, debugging, and deployment workflows. DevOps engineers rely on it for quick sql beautifier conversions when configuring servers or CI/CD pipelines. QA testers validate format sql online outputs against expected values. Students learning web development use it as a reference tool to understand how encoding and formatting actually work. Technical writers format code examples for documentation. The tool is especially valuable in secure environments where corporate policy prohibits pasting code into external websites — everything stays local.
How to Use the SQL
Paste or type your input into the text area — the tool processes it instantly with no submit button needed. For sql formatter operations, select your desired mode or options from the dropdown controls. The output panel shows results in real time with syntax highlighting where applicable. Use the copy button to transfer results to your clipboard. For batch operations, the tool handles multiple inputs separated by newlines. All processing happens in your browser's JavaScript engine — close the tab and your data is gone. Keyboard shortcuts (Ctrl+Enter) trigger the primary action for power users.
Frequently asked
Which SQL dialects does it support?
Standard SQL (ANSI), MySQL, PostgreSQL, and T-SQL (SQL Server). It handles complex queries including JOINs, subqueries, CTEs (WITH clauses), window functions, and UNION/INTERSECT/EXCEPT. The formatter applies consistent indentation, keyword capitalization (SELECT/FROM/WHERE), and aligns column lists for readability. A compression mode minifies whitespace for production queries.
Does it preserve comments and string literals?
Yes. The parser tokenizes SQL to distinguish string literals (single quotes), line comments (--), block comments (/* */), and identifiers from keywords. Comments and string contents are preserved exactly as-is. This prevents the formatter from breaking inline SQL hints or altering string values during formatting.
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Why did the fish blush?
No paywalls, no signups, no data sold. Built by a solo developer who believes useful tools should be accessible to everyone.
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