SQL Syntax Formatter

Formats SQL queries into clean, consistent syntax to speed reviews and improve team collaboration for developers and data professionals.

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2,612+
Total Calculations Run
< 15ms
Browser Execution Speed
100%
Client-Side Privacy
4.9 / 5.0
User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how SQL Syntax Formatter processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}
Computed Result { "id": 1, "status": "active", "roles": [ "admin" ] }
Execution Mode Client-Side In-Browser JS
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About This Tool

The tool accepts a SQL string and returns a formatted version that conforms to a chosen style. It analyzes tokens, identifies structure (SELECT, FROM, WHERE, JOIN, etc.), and re-emits with consistent indentation and line breaks. It supports multiple dialects through presets and can enforce keyword casing, semicolon termination, and line wrapping. The system preserves comments and string literals while adjusting whitespace for readability. It targets developers, DBAs, data analysts, and data engineers who prepare queries for review, documentation, or deployment, making legacy code easier to understand and new code easier to maintain. Unique value lies in per-dialect formatting rules, deterministic output, and non-destructive formatting that does not alter semantics. Core features include adjustable indent size, wrap column control, and optional preservation of original whitespace where possible. Typical use cases include cleaning up legacy queries, aligning style across teams, and producing sources suitable for documentation or CI checks.

How to Use

Provide inputs: paste your raw SQL into the input field.
Choose dialect or ANSI default and set preferences: indent size, keyword case, wrap columns, and comment handling.
Run or observe instant formatting: the tool outputs a formatted SQL string in real-time.
Copy formatted SQL: use the copy button or paste into your editor.
Optional: save your formatting profile for reuse across projects.

How to use online sql syntax formatter

Frequently Asked Questions

Find Quick Answers

Which dialects are supported?
The formatter supports ANSI SQL plus vendor-specific dialects such as PostgreSQL, MySQL, MSSQL, and Oracle. Selecting a dialect adjusts clause placement, keyword casing conventions, and minor syntactic nuances to align with common practice.
Are comments preserved?
Yes. Inline and block comments are preserved and positioned so they remain associated with the relevant code blocks. The formatter maintains comment blocks during re-emission and aligns them with surrounding whitespace.
What if the SQL has syntax errors?
If syntax errors are detected, the formatter reports error details with line and column positions and formats the syntactically valid portions. It applies best-effort formatting to valid segments without altering semantics.
Can I export or copy the result?
Yes. The formatted SQL is produced as a string that can be copied to the clipboard or saved to a file, enabling seamless integration with editors, repos, or CI workflows.

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