Free Online SQL Formatter — Beautify MySQL, PostgreSQL & T-SQL
SQL formatter for MySQL, PostgreSQL, SQL Server, Oracle, SQLite, and BigQuery. Uppercase keywords, indent clauses, copy in one click.
Quick answer
To format SQL, paste your query into the KaviForge SQL Formatter and choose your database dialect (MySQL, PostgreSQL, SQL Server, Oracle, SQLite, BigQuery, and more). The query is formatted instantly with each clause on its own line, consistent indentation, and uppercase keywords.
This free SQL formatter — a SQL beautifier for MySQL, PostgreSQL, SQL Server, Oracle, SQLite, and BigQuery — indents JOIN and WHERE logic so messy queries are readable at a glance.
Use the SQL formatter on ORM logs, slow-query dumps, and migration scripts. Dialect-aware layout handles MySQL backticks, PostgreSQL casts, and T-SQL brackets without sending SQL to a server.
Related reading: How to Convert JSON to CSV (and Vice-Versa), How to Work with Nested JSON (A Beginner's Guide to Accessing Data), and 5 Reasons to Use an Online Formatter (Instead of Your IDE).
How to Use This SQL Formatter (MySQL, PostgreSQL & T-SQL)
- 1Paste your SQL into the input box, or upload a .sql file.
- 2Select your database dialect.
- 3Choose keyword case (UPPERCASE, lowercase, or preserve) and indentation.
- 4Read the formatted query in the output box.
- 5Copy it or download it as formatted.sql.
Features
11 SQL Dialects
Standard SQL, MySQL, MariaDB, PostgreSQL, T-SQL, PL/SQL, SQLite, BigQuery, Snowflake, Redshift, and Spark.
Keyword Casing
Convert keywords to UPPERCASE or lowercase, or keep them as written.
Readable Layout
Clauses, joins, and conditions on separate lines with clear indentation.
Multiple Statements
Formats scripts with several queries separated by semicolons.
Helpful Errors
Reports where the formatter could not parse your SQL.
Private
Queries — including table names and data — stay in your browser.
When to Use the SQL Formatter
Read ORM-generated SQL
Format queries logged by Prisma, Hibernate, Sequelize, or Django to debug performance.
Code reviews and migrations
Consistently formatted SQL makes diffs smaller and reviews faster.
Analyze slow queries
Format queries from slow-query logs before running EXPLAIN.
Documentation and reports
Present clean SQL in wikis, runbooks, and BI dashboards.
What a SQL Formatter Changes — and What It Does Not
Formatting uses the open-source sql-formatter library, loaded on demand, with a dedicated grammar for each dialect.
The formatter changes only whitespace and keyword case — it never alters identifiers, string literals, or query logic. Because it runs in your browser, sensitive schemas and data are not exposed.
SQL Formatter FAQs
What does a SQL formatter do?
A SQL formatter pretty-prints queries: it indents clauses, uppercases keywords, and wraps JOINs so MySQL, PostgreSQL, and T-SQL are readable. It does not change query logic.
How do I format a SQL query online?
Paste the query into the KaviForge SQL Formatter, choose your dialect, and copy the formatted result.
Which databases are supported?
Standard SQL, MySQL, MariaDB, PostgreSQL, SQL Server (T-SQL), Oracle PL/SQL, SQLite, BigQuery, Snowflake, Amazon Redshift, and Spark SQL.
How do I make SQL keywords uppercase?
Set "Keywords" to UPPERCASE. SELECT, FROM, WHERE, and all other keywords are converted automatically.
Why do I get a "Could not format SQL" error?
The query uses syntax the selected dialect does not recognise. Try the matching dialect, or check for unbalanced quotes and parentheses.
Does the formatter validate my SQL?
It parses the query to format it, but it does not check tables, columns, or whether the query will run.
Is my SQL sent to a server?
No. Formatting happens entirely in your browser.
Popular SQL Formatter searches
- Free SQL Formatter — Beautify SQL Queries OnlineFree SQL formatter for messy one-line queries. Uppercase keywords and indent clauses instantly. Private in your browser — format SQL now.
- PostgreSQL Formatter OnlineFormat PostgreSQL queries with dialect support for JSONB operators, casts and Postgres functions. Paste SQL, choose PostgreSQL and beautify.
- MySQL Query FormatterFormat MySQL queries online with backtick identifiers and MySQL functions handled correctly. Paste your query, pick MySQL and beautify it.
- SQL Server (T-SQL) FormatterFormat T-SQL for Microsoft SQL Server. Handles TOP, schema-qualified names and bracket identifiers. Paste your query and beautify it online.
- Beautify SQL JOIN QueriesFormat multi-table SQL JOIN queries so every join and ON condition sits on its own line. Paste your query and read the relationships clearly.
- Format Long SQL SELECT StatementsFormat SELECT statements with dozens of columns. Each column lands on its own line so wide queries are easy to read, edit and review.
- BigQuery SQL FormatterFormat Google BigQuery SQL with backtick project.dataset.table names. Choose the BigQuery dialect and beautify analytics queries online.
- Snowflake SQL FormatterFormat Snowflake SQL with database.schema.table names and Snowflake functions. Pick the Snowflake dialect and beautify queries online.
- Format SQL INSERT StatementsFormat multi-row INSERT INTO statements so each VALUES tuple sits on its own line. Easier to review seed data and migrations.
- SQL CTE FormatterFormat SQL queries that use WITH common table expressions. Each CTE is indented clearly so multi-step queries are easy to follow. Free and private.
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Related Guides & Tutorials
How to Convert JSON to CSV (and Vice-Versa)
Convert a JSON payload to CSV (and CSV back to JSON) with code examples. Use our free converter to export JSON to CSV in one click.
How to Work with Nested JSON (A Beginner's Guide to Accessing Data)
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