SQL Formatter
Online SQL query formatter, beautifier and minifier
データツール
SQLフォーマッター
SQLクエリを貼り付けると、リアルタイムで整形・美化されます。
すべての処理はブラウザ内で完結します。データはアップロードされません。
About SQL Formatter
The SQL Formatter is an essential free online tool for database engineers, backend developers, and data analysts who need to instantly format and beautify SQL queries directly in the browser. Production logs and ORM-generated SQL often come as a single unreadable line with no line breaks or indentation.
Simply paste such unreadable SQL into this tool, and it will automatically recognize major SQL clauses — SELECT, FROM, WHERE, JOIN, ORDER BY, GROUP BY, HAVING — and insert logical line breaks and indentation (2 or 4 spaces) to produce a beautifully structured format. Nested subqueries are indented according to parenthesis depth, making even complex queries visually clear.
The keyword case conversion feature lets you unify SQL keywords like SELECT and FROM to UPPERCASE or lowercase in one click, matching your team's coding standards. A minify mode compresses formatted SQL back to a single line for embedding as query parameters.
The tool now supports advanced SQL syntax including CTE definitions (WITH clauses), window functions (OVER, PARTITION BY), and DDL/DML statements including INSERT, UPDATE, DELETE, CREATE TABLE, ALTER TABLE, and DROP TABLE. All parsing and formatting runs entirely in your browser's JavaScript engine — no schema information or sensitive query data is ever sent to any external server.
How to use SQL Formatter
- Paste or type the SQL query you want to format into the input area on the left. Multiple statements separated by semicolons are supported.
- Use the options bar to select keyword case (UPPER / lower / preserve) and indentation size (2-space or 4-space).
- Formatted output appears in real time on the right panel as you type. Enable the Minify checkbox to strip all line breaks and extra whitespace, producing a compressed single-line SQL.
- Click the Copy button to copy the formatted SQL to your clipboard, then paste it into your editor or terminal.
Benefits of SQL Formatter
- [Instantly Beautify Complex SQL] Automatically recognizes all SQL syntax — SELECT, JOIN, subqueries, UNION, DDL/DML — and formats them with proper indentation. Nested subqueries are indented by parenthesis depth, making even the most complex queries visually clear at a glance.
- [Keyword Case & Minify for Team Standards] Convert SQL keywords to UPPERCASE, lowercase, or preserve the original case with a single click, instantly matching your project's coding conventions. Minify mode removes all line breaks and extra whitespace, producing a single-line SQL ideal for production embedding.
- [Fully Local Processing for Sensitive Queries] All SQL parsing and formatting runs entirely in your browser's JavaScript engine. No schema information or sensitive data in WHERE clauses is ever sent to any external server, making it safe for enterprise use.
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