1. Paste your SQL
Paste a query from a database console, application log, dashboard, migration, report, or codebase.
Free SQL formatter · developer tool · browser-based
SQL Formatter Online
Paste SQL from logs, dashboards, database consoles, or application code. Format or compact queries while preserving string literals, quoted identifiers, comments, and common dialect syntax.
Input SQL
Runs in your browser. Local files are read in your browser and are not uploaded by this tool.
Formatted SQL output
Ready. Paste SQL to format.
Output chars0
SQL keywords0
StatusWaiting
ProcessingLocal browserProcessed locally in your browser
How to use the SQL Formatter
Format SQL without relying on global whitespace replacement that can alter quoted text.
2. Choose dialect and formatting preferences
Choose a SQL dialect, indentation style, and keyword case before formatting. Use Compact when you need a shorter one-line-oriented representation.
3. Review, copy, or download the result
Review the formatted query, then copy it, download it as SQL, or move the result back into the input for another pass.
What the formatter preserves
The formatter separates SQL code from protected text before changing layout.
String literals
Quoted string contents keep their internal spaces and escaped quote sequences instead of being rewritten by whitespace cleanup.
Quoted identifiers
Double-quoted names, backtick identifiers, and SQL Server bracket identifiers are kept intact while surrounding SQL is reformatted.
Comments
Line and block comments are preserved. MySQL hash comments are recognized when MySQL mode is selected.
SQL formatting limits
Formatting makes a query easier to inspect, but it is not the same as executing or validating it against a database engine.
Dialect mode is for formatting context
Dialect selection changes token handling for common syntax patterns, but the tool does not connect to PostgreSQL, MySQL, SQL Server, SQLite, BigQuery, Snowflake, or another database.
Run important queries in the target database
A query can look well formatted and still contain a syntax, schema, permission, or logic error. Test production-impacting SQL in the database environment that will execute it.
Avoid sensitive production data
Processing runs locally in the browser for normal use, but credentials, secrets, and sensitive production data should still stay out of online utilities.
SQL Formatter FAQ
Does the SQL Formatter change text inside SQL strings?
The formatter tokenizes SQL before changing layout, so spaces and text inside quoted string literals are preserved instead of being globally collapsed.
Which SQL dialects can I choose?
The workspace includes Standard SQL, PostgreSQL, MySQL, SQL Server, SQLite, BigQuery, and Snowflake modes for dialect-aware token handling and review.
Can I control indentation and keyword case?
Yes. Choose 2 spaces, 4 spaces, or tabs for indentation, and uppercase, lowercase, or preserved SQL keyword casing.
Does this tool validate whether a query will run?
No. This V1 focuses on safe formatting and compaction rather than database-specific execution validation. Always test important queries in the target database.
Does this tool upload my SQL?
For normal use, formatting runs in your browser. Avoid pasting credentials, secrets, or sensitive production data into any online utility.
Helpful SQL Formatter guides
Learn practical ways to clean, format, encode, decode, or convert developer text safely.
