Poor Man's T-SQL Formatter

A lightweight tool that formats T-SQL code for consistent readability, supporting developers, DBAs, and data engineers working with SQL Server.

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676+
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 Poor Man's T-SQL 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

This tool provides on-demand T-SQL formatting to standardize code style across teams. It takes raw SQL text and outputs a version with uniform indentation, line breaks, and keyword casing. Conceptually, it tokenizes the input, preserves literals and comments, and applies formatting rules to organize clauses and blocks. The formatter is designed for DBAs, developers, and data engineers who frequently work with SQL Server code, migration scripts, and stored procedures. Unique value comes from deterministic formatting, a lightweight footprint, and the ability to adjust indentation and keyword casing without rewriting logic. Core features include block-aware indentation, capitalization options, and optional line wrapping. Common use cases include preparing scripts for code reviews, aligning legacy code with current styling standards, and ensuring consistent formatting in CI pipelines. The tool emphasizes non-destructive formatting: semantics are preserved while whitespace and structure are clarified. It can handle nested subqueries, CTEs, and multi-statement batches, producing readable, maintainable SQL that speeds reviews and reduces misinterpretation. The output is suitable for inclusion in documentation, training materials, and collaborative codebases. This is particularly useful for teams that enforce SQL style guides and strive for predictable diffs across commits.

How to Use

  1. Provide inputs: paste the T-SQL code to format.
  2. Set options: choose indent size and keyword casing as needed.
  3. Run formatting: apply the formatter to produce cleaned SQL.
  4. Review outputs: inspect the formatted code for readability and consistency.
  5. Integrate: copy to your repository or merge into CI/CD workflows.
How to use poor man's t-sql formatter online

Frequently Asked Questions

Find Quick Answers

What dialect is supported?
The formatter targets Microsoft T-SQL. It reformats syntax, keywords, and blocks without changing logic. It does not convert between SQL dialects or validate query correctness.
Can I customize indentation and keyword casing?
Yes. You can adjust indent_size (e.g., 2 or 4 spaces) and choose to uppercase keywords or preserve their original casing. Defaults are 4 spaces and uppercase keywords.
Does it handle large scripts?
Large scripts are processed in chunks to prevent memory spikes. Formatting is deterministic, and chunk boundaries do not affect the overall output order or readability.
Is output deterministic?
Yes. With identical input and settings, the formatter always produces the same formatted output, ensuring consistent code diffs across runs.

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