SQL Formatter & Beautifier
Beautify, standardise or minify SQL across database dialects instantly, with the query never leaving your machine.
Beautify, standardise or minify SQL across database dialects instantly, with the query never leaving your machine.
Layerbit's SQL Formatter is an essential utility for Database Administrators and Backend Engineers. It takes minified, poorly structured, or deeply nested queries and converts them into readable, standardized architecture.
Our formatting engine natively supports 16 distinct SQL dialects, ensuring accurate keyword recognition and structural alignment for your specific technology stack.
Full support for industry standards including PostgreSQL, MySQL, MariaDB, and SQLite. Handles standard CRUD operations, indexing, and complex joins.
Optimized for proprietary corporate stacks like T-SQL (SQL Server), Oracle PL/SQL, and IBM DB2. Preserves specific stored procedure and variable syntax.
Native parsing for massive analytical queries running on Google BigQuery, Amazon Redshift, Apache Spark, Trino, and Hive.
Go beyond basic indentation. Layerbit provides granular control over how your SQL statements are structured for code reviews and version control.
SELECT statements significantly easier to read and modify.COUNT(), MAX(), COALESCE()) to uppercase while preserving your table and column casing.Take unreadable, single-line queries exported from ORMs (Prisma, Hibernate, Entity Framework) and expand them into formatted architecture to analyze execution plans.
Format massive, deeply nested stored procedures and complex JOIN operations before committing them to your version control repositories to maintain code quality.
Quickly adapt the structural layout of legacy queries when migrating databases between different environments like PostgreSQL and MySQL.
Test the SQL syntax formatter instantly. Click the templates below to load sample queries directly into the IDE.
Database queries inherently contain sensitive information, including proprietary schema designs, table structures, and business logic. Processing queries purely in your local browser prevents this critical data from being intercepted or logged on external servers.
The formatter safely processes standard SQL comments. However, when using the "Minify" function, inline comments (--) may be stripped or reformatted to prevent them from accidentally commenting out the rest of the single-line string.
No. This tool acts strictly as a structural formatter and syntax highlighter. It organizes the text to make it human-readable but does not connect to your database or execute the commands.
A query written as one 600-character line is not just unpleasant to read — it is effectively unreviewable. Every change to it produces a diff showing one line removed and one line added, so a reviewer cannot see whether you altered a join condition or only a column alias. Consistent formatting turns SQL into something version control can describe meaningfully.
That is the real argument for a formatter: not beauty, but making the WHERE clause you changed visible as a changed line rather than buried inside an unchanged wall of text.
Upper-casing reserved words (SELECT, JOIN, WHERE) separates language from identifiers at a glance. SQL keywords are case-insensitive, so this is purely for readability — but it is the convention nearly every style guide lands on.
Putting each major clause on its own line, with joins and conditions indented beneath, makes the query's shape match its logic. Nested subqueries become visibly nested instead of implied by parentheses alone.
For long select lists this is the difference between a reviewable diff and an unreviewable one. Adding a column becomes a single added line, which is exactly what you want a code review to show.
"Standard SQL" is closer to an aspiration than a description. Formatting has to know which dialect it is looking at, because the same characters mean different things:
"order"), MySQL uses backticks (`order`), SQL Server uses brackets ([order]). In MySQL, double-quoted text is a string literal unless ANSI_QUOTES is enabled — so the same query can parse differently depending on a server setting.|| in PostgreSQL and Oracle, CONCAT() in MySQL, + in SQL Server.LIMIT n in PostgreSQL and MySQL, TOP n in SQL Server, FETCH FIRST n ROWS ONLY in Db2 and standard SQL.-- and /* */ are near-universal, but MySQL requires whitespace after --, so --comment is a subtraction of a negative rather than a comment.$1, ? and @name are all conventions you will meet, and a formatter must leave them intact.Worth stating plainly: making a query readable does nothing about SQL injection. If any part of a query is assembled from user input by string concatenation, it is injectable whether it is beautifully indented or not. The fix is parameterised queries — placeholders bound by the driver, so user input is never parsed as SQL. A formatter is a readability tool, and reading a query is often how you notice a concatenation that should have been a parameter.
Equally, a formatter does not change how a query performs. It rewrites whitespace, never semantics: no clause is reordered, no join is rewritten, no index is chosen differently. For performance work you want EXPLAIN, not a formatter — though a readable plan is considerably easier to reason about alongside a readable query.
Production SQL tends to contain table names, column names, business logic and sometimes literal customer data in a WHERE clause. All of that is competitively and legally sensitive, and none of it should be pasted into a service you cannot inspect. This formatter is client-side JavaScript: the parsing and re-rendering happen in the page you have open, nothing is transmitted, and you can verify that in your browser's Network tab or simply by working offline.
commaPosition formatter config with the supported indentStyle option (Standard / Tabular Left / Tabular Right) to fix a formatting error.