🗄️ SQL Formatter
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Format SQL queries. Supports MySQL, PostgreSQL, SQLite. Beautify or minify SQL.
Format messy, minified, or inconsistently styled SQL queries into clean, readable code with proper indentation and keyword capitalization. Choose from Standard SQL, MySQL, PostgreSQL, or SQLite — each applies dialect-specific formatting rules. Toggle between Format mode (multi-line, indented) and Minify mode (single-line compressed). All processing runs via the sql-formatter library in your browser.
📋 When to Use the SQL Formatter
You inherited a stored procedure that's one unreadable line — paste it, pick your indentation style, and get back something a human can actually review during code review. Your SQL is formatted locally — queries (and any table names inside them) never leave the browser.
⚙️ How the SQL Formatter Works
The SQL Formatter processes your input using conversion algorithms that run entirely in your browser. When you paste or upload content and select the output format, JavaScript parses the input, transforms it using format-specific logic (encoding, decoding, parsing, serializing), and produces the converted output. For file conversions, all processing uses browser-native APIs and JavaScript libraries loaded from CDN — your files are never uploaded to any server. The entire pipeline from input to output stays on your device.
How to Use the SQL Formatter
- Paste your SQL — Drop any SQL query into the input area. It works with messy, minified, or oddly-formatted SQL.
- Choose your dialect — Select Standard SQL, MySQL, PostgreSQL, or SQLite. Each has slightly different formatting rules.
- Click Format — Your SQL is instantly beautified with proper indentation, line breaks, and keyword capitalization.
- Or click Minify — Compress your SQL to a single line for embedding in code or reducing file size.
Frequently Asked Questions
Does it validate my SQL?
The formatter focuses on formatting, not validation. It will format syntactically correct SQL. For validation, run your query against your actual database.
Which SQL dialects are supported?
Standard SQL, MySQL, PostgreSQL, and SQLite are supported. Each uses slightly different keyword casing and formatting conventions.
Is my data sent to a server?
No. All formatting happens entirely in your browser using the sql-formatter library. Your queries never leave your device.
Can I format large queries?
Yes! The formatter handles queries of any length. Performance depends on your device, but most queries format in under a second.
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