SQL Formatter & Beautifier Online Free — Format & Minify SQL Queries

Overview: Format complex SQL queries with clean indentation and consistent keyword casing.

Beautify, indent, and format messy SQL queries or minify them into single-line strings. Supports PostgreSQL, MySQL, SQLite, and BigQuery. All computations and data processing are executed 100% locally on your device using client-side WebAssembly, HTML5 Canvas, and modern Web APIs without uploading files to any external server.

Supported Formats

SQL Formatter & Beautifier supports the following file formats:

  • SQL — client-side processing support.

How to Use SQL Formatter & Beautifier in Browser

  1. Paste Query: Paste your raw or minified SQL query into the input box.
  2. Configure: Select your database dialect (PostgreSQL, MySQL, etc.) and keyword casing.
  3. Copy Result: Copy the beautified SQL query or save as a .sql file.

Key Features & Privacy Protections

  • 100% Client-Side Privacy: Zero cloud upload. Your documents, photos, and files never leave your local browser sandbox.
  • Zero Installation: Runs instantly in Chrome, Safari, Firefox, Edge, Android, and iOS browsers.
  • Free Forever: No sign-up, no subscriptions, no ads, and no file size limits.

Frequently Asked Questions (FAQ)

What SQL dialects are supported?

Standard SQL, PostgreSQL, MySQL, SQLite, Transact-SQL (T-SQL), and Google BigQuery.

Can it convert SQL keywords to UPPERCASE?

Yes, choose between UPPERCASE, lowercase, or preserve original casing for SQL keywords.

Can it minify SQL for code embedding?

Yes, toggle Minify mode to strip all line breaks, comments, and redundant spacing into a clean single-line query.

Does it support complex subqueries and CTEs?

Yes, nested subqueries, CTEs (WITH clauses), JOINs, and window functions are formatted with clean indentation hierarchies.

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v1.0.0Free · sql-formatterDeveloper Tools

SQL Formatter & Beautifier Online Free — Format & Minify SQL Queries

Format complex SQL queries with clean indentation and consistent keyword casing.. Beautify, indent, and format messy SQL queries or minify them into single-line strings. Supports PostgreSQL, MySQL, SQLite, and BigQuery.

What is SQL Formatter and what does it do?

The SQL Formatter & Beautifier is a database developer tool that cleans, indents, and structures unformatted, minified, or messy SQL queries into readable, professionally indented database code.

Supporting PostgreSQL, MySQL, SQLite, T-SQL, and Google BigQuery dialects, it standardizes keyword casing (UPPERCASE/lowercase), aligns subqueries and JOINs, and offers single-line minification.

  • Beautify complex SQL queries with consistent hierarchical indentation and line breaks.
  • Support for multiple SQL dialects: Standard SQL, PostgreSQL, MySQL, SQLite, T-SQL, and BigQuery.
  • Configurable keyword casing: enforce UPPERCASE keywords (SELECT, FROM, WHERE), lowercase, or preserve.
  • Minify mode: strip comments, line breaks, and whitespace to compress SQL queries into compact single-line strings.
  • Built-in sample queries for complex SELECT queries with window functions, CREATE TABLE schemas, and UPDATE statements.

How does SQL Formatter work?

The sql-formatter tokenizer breaks SQL queries into command keywords, identifiers, literals, and clause delimiters.

The formatting engine arranges expressions into clean block hierarchies, aligns JOIN conditions, indents nested subqueries, and standardizes keyword casing before rendering the beautified code.

100% private: all processing happens locally in your browser using client-side WebAssembly, HTML5 Canvas, and modern Web APIs. Your files are never uploaded to any server.

Who needs SQL Formatter?

Database Administrators & Data Engineers

Format unwieldy query logs, audit historical SQL scripts, and optimize complex data pipeline transformations.

Backend & Full-Stack Developers

Beautify ORM-generated queries (Prisma, TypeORM, Hibernate) to debug query performance and index utilization.

Data Analysts & BI Specialists

Structure analytical queries with multiple CTEs (WITH clauses) and window functions for executive reporting.

Software Engineering Students

Learn clean SQL formatting habits and understand relational query structure through visual indentation.

Supported file formats

SQL Formatter & Beautifier processes the following file extensions and data formats directly in your browser:

SQL

How to use SQL Formatter — step by step

  1. 1

    Paste Query

    Paste your raw or minified SQL query into the input box.

  2. 2

    Configure

    Select your database dialect (PostgreSQL, MySQL, etc.) and keyword casing.

  3. 3

    Copy Result

    Copy the beautified SQL query or save as a .sql file.

Frequently asked questions

What SQL dialects are supported?

Standard SQL, PostgreSQL, MySQL, SQLite, Transact-SQL (T-SQL), and Google BigQuery.

Can it convert SQL keywords to UPPERCASE?

Yes, choose between UPPERCASE, lowercase, or preserve original casing for SQL keywords.

Can it minify SQL for code embedding?

Yes, toggle Minify mode to strip all line breaks, comments, and redundant spacing into a clean single-line query.

Does it support complex subqueries and CTEs?

Yes, nested subqueries, CTEs (WITH clauses), JOINs, and window functions are formatted with clean indentation hierarchies.

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