Free Online SQL Formatter, Beautifier & SQL Query Analyzer

Format, minify, convert, compare, and analyze SQL without leaving the browser. Use the formatter for readable queries, the converter for MySQL and PostgreSQL migration checks, the analyzer for quick warnings, and the schema view for CREATE TABLE summaries.

SQL formatterDialect converterQuery analyzerBrowser based

Last updated: July 10, 2026

DialectKeywordsIndent

Input SQLComments and quoted strings are preserved

Formatted SQL

Statements

Input lines

Output lines

Output chars

381

Query Analyzer

2 issues

InfoLine 2Statement 1: Review JOIN indexes

Check that JOIN and high-cardinality WHERE columns are indexed before running this on large tables.

DangerLine 4Statement 2: UPDATE without WHERE

This UPDATE can affect every row in the target table.

Client-Side Processing

Input Data Stays on Device

Instant Local Execution

Runs in your browserNo upload requiredCopy or export .sql

SQL workflow shortcuts

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What is SQL Formatter?

SQL Formatter turns compressed, one-line, or inconsistent SQL into a readable query layout for debugging, code review, documentation, and migration notes. It is useful for ORM output, copied log statements, generated report queries, and hand-written SQL that has lost its structure.

The page is more than a basic SQL beautifier. It includes a formatter, minifier, MySQL and PostgreSQL converter, SQL analyzer, diff viewer, and CREATE TABLE schema parser in one browser-based workspace.

SQL Formatter Features

SQL Beautifier

Reflow SELECT, JOIN, WHERE, GROUP BY, ORDER BY, INSERT, UPDATE, DELETE, and CREATE statements into readable blocks.

SQL Minifier

Compress formatted SQL into compact output when you need a smaller script or log-friendly query.

Code Editor Panels

Use syntax-highlighted SQL input and output panels with line numbers, bracket matching, and editor-style scrolling.

Dialect Converter

Convert common syntax between MySQL and PostgreSQL, including quotes, booleans, auto-increment columns, limits, and date functions.

Query Analyzer

Review query stats, statement counts, keywords, table references, and warnings for common risky patterns.

SQL Diff Viewer

Compare two queries line by line to inspect changed fields, joins, filters, sorting, or schema statements.

Schema Parser

Parse CREATE TABLE statements into table names, columns, data types, nullable flags, defaults, and key markers.

Comment Preservation

Keep line comments, block comments, quoted strings, and escaped values intact while formatting the surrounding SQL.

SQL Export

Copy the output to the clipboard or download the formatted result as a .sql file.

How to Use the SQL Formatter

Paste SQL into the editor, or load one of the built-in SQL samples.

Pick the dialect, keyword case, indentation, and format or minify mode.

Review the formatted output, query stats, and analyzer warnings.

Open Convert when you need MySQL to PostgreSQL or PostgreSQL to MySQL syntax cleanup.

Open Diff to compare two queries, or Schema to parse CREATE TABLE statements.

Copy the result or export it as a .sql file.

Common Use Cases

Formatting ORM-generated SQL from application logs before debugging.
Preparing readable SQL snippets for GitHub pull requests and code review.
Comparing two versions of a query during a bug fix or migration.
Checking common MySQL and PostgreSQL syntax differences before manual review.
Turning CREATE TABLE scripts into a quick schema summary.
Cleaning SQL examples for docs, tutorials, tickets, and incident reports.

SQL Formatting Example

Compressed SQL is expanded into a readable query with selected fields, joins, filters, and sort order on separate lines.

Input SQL

select u.id,u.email,o.total from users u inner join orders o on u.id=o.user_id where o.status='paid' and o.total>100 and u.deleted_at is null order by o.created_at desc

Formatted SQL

SELECT
  u.id,
  u.email,
  o.total
FROM users u
INNER JOIN orders o
  ON u.id = o.user_id
WHERE
  o.status = 'paid'
  AND o.total > 100
  AND u.deleted_at IS NULL
ORDER BY o.created_at DESC

SQL Formatter vs SQL Analyzer

Feature	SQL Formatter	Query Analyzer
Primary goal	Makes SQL easier to read and share	Flags patterns worth reviewing
Output	Formatted or minified SQL text	Stats, warnings, keywords, tables, and statement details
Best for	Code review, docs, debugging, and cleanup	Quick checks before running or sharing a query

How This Tool Works

The formatter scans SQL into tokens before applying dialect-aware line breaks, indentation, spacing, and keyword casing. That token pass protects comments, quoted identifiers, string literals, escaped values, and multi-statement boundaries. Other tabs reuse the same parsing utilities for conversion, analysis, diffing, and CREATE TABLE schema extraction.

Technical Stack

CodeMirror 6Client-side SQL tokenizerSQL conversion helpersDiff generationBrowser Clipboard APIBlob downloads

Privacy

The SQL formatter runs in your browser. Queries, table names, schema details, copied log statements, and pasted values are not uploaded to WebToolsPlanet.

Converter limits

Dialect conversion is a helper for common MySQL and PostgreSQL syntax differences. Always review complex migrations, stored routines, triggers, database extensions, and production-critical queries manually.

Frequently Asked Questions

Is this SQL Formatter free?

Yes. It is free to use, with no signup required.

What SQL dialects are supported?

The formatter works with common SQL syntax, including MySQL, PostgreSQL, SQLite-style queries, and standard SQL. The converter is focused on common MySQL and PostgreSQL syntax patterns.

Can I convert MySQL to PostgreSQL?

Yes. Use the Convert tab for common MySQL to PostgreSQL syntax changes such as backticks, booleans, auto-increment columns, LIMIT forms, and date/time functions.

Can I convert PostgreSQL to MySQL?

Yes. Use the reverse conversion mode for common PostgreSQL to MySQL cleanup. Complex database-specific features still need manual review.

Can it compare two SQL queries?

Yes. The Diff tab compares two SQL snippets line by line so changed filters, joins, columns, ordering, and schema statements are easier to spot.

Can it parse CREATE TABLE SQL?

Yes. The Schema tab extracts tables, columns, data types, nullable flags, defaults, and key markers from CREATE TABLE statements.

Does it change comments or string literals?

The formatter is designed to preserve line comments, block comments, quoted strings, quoted identifiers, and escaped values while reformatting surrounding SQL.

Is my SQL uploaded to a server?

No. Formatting, conversion, analysis, diffing, schema parsing, copy, and export actions happen locally in your browser.

Can I export formatted SQL?

Yes. You can copy the result or download it as a .sql file.