SQL Formatter — Free Online SQL Formatter & Beautifier

SQL Formatter — Free Online SQL Formatter & Beautifier. Free online SQL formatter. Instantly format and beautify SQL queries with proper indentation and keyword casing. Supports MySQL, PostgreSQL, SQL Server, SQLite, and more.

Instantly beautify and structure your database queries with our free SQL formatter online. This essential database administration tool reformats raw SQL statements into clean, properly indented, readable code in one click.

Whether you are a database administrator debugging complex JOIN operations, a backend engineer reviewing slow SELECT queries, or a data analyst standardizing analytics scripts, our SQL beautifier supports 13 dialects including MySQL, PostgreSQL, SQL Server Transact-SQL, SQLite, Oracle PL/SQL, BigQuery, and MariaDB.

To compress queries after formatting, see our SQL Minifier. Simply paste your SQL, choose your dialect, and format it instantly.

Our format SQL tool runs entirely in your browser — your proprietary database schemas, sensitive table structures, and internal business logic are never sent to a server.

All formatting happens locally using the sql-formatter library, making this the safest way to beautify SQL online.

Choose keyword case (UPPERCASE, lowercase, or preserve), indent style (standard, tabular left, tabular right), and SQL dialect to produce output perfectly matched to your codebase conventions.

Use it to standardize code reviews, clean up legacy queries, or prepare SQL scripts for documentation.

Frequently asked questions

How do I format a SQL query online?

Paste your SQL into the Your SQL query box. The prettified version appears in the output area below and updates as you type. Choose your database in the Dialect menu for the most accurate result, then use the copy button on the output to copy it.

Which SQL dialects does this SQL formatter support?

Thirteen: GCP BigQuery, IBM DB2, Apache Hive, MariaDB, MySQL, Couchbase N1QL, Oracle PL/SQL, PostgreSQL, Amazon Redshift, Spark, Standard SQL (the default), SQLite and SQL Server Transact-SQL. Formatting is done by the open-source sql-formatter library.

What do the Keyword case and Indent style options do?

Keyword case turns keywords such as SELECT and FROM into UPPERCASE (the default) or lowercase, or leaves them as typed with Preserve. Indent style Standard indents clauses normally, while Tabular left and Tabular right line keywords up in a fixed-width column so the query reads like a table.

Why does my query not format correctly?

The formatter has to parse the query in the selected dialect. Vendor-specific syntax, such as special operators, placeholders or procedural blocks, may not be understood by Standard SQL, so pick the dialect that matches your database. When parsing fails, a warning with the line and column of the problem appears above the output, which stays empty.

Does the SQL formatter send my queries anywhere?

No. Formatting runs in your browser with the sql-formatter JavaScript library, so the queries, table names and schema details you paste are not uploaded.

How to use this online tool

SQL Formatter — Free Online SQL Formatter & Beautifier is designed for fast browser workflows when you need to format, validate, convert, decode, encode, generate, or inspect data without opening a heavy desktop app. Start with the input field or visible options, review the result, then copy or download the output for the next step.

Private processing in your browser

SQL Formatter — Free Online SQL Formatter & Beautifier keeps the normal processing step local in your browser. That is useful for code snippets, tokens, documents, configuration values, text samples, and other material that should not be sent to a remote service unless you explicitly choose to share it.

When this tool is useful

Use SQL Formatter — Free Online SQL Formatter & Beautifier for repeatable developer tasks, technical documentation, QA checks, quick conversions, debugging, content cleanup, and internal team workflows. The page focuses on clear inputs, immediate feedback, and output that is easy to reuse in code, reports, tickets, emails, or notes.

Practical tips

Before copying the final result, check important details such as spacing, casing, filenames, encoding, token structure, line breaks, or output format. Small checks prevent mistakes when the result is reused in source code, API requests, documentation, spreadsheets, or shared files.