Messy SQL is hard to read, debug, and share. Paste your query into the SQL Formatter and get clean, properly indented, keyword-capitalized SQL in one click — no installation required. Everything runs in your browser, so your queries never leave your device.
How to Format SQL Online
- Paste your SQL query into the input box on the left (or type directly).
- Choose your formatting options: keyword case (UPPERCASE / lowercase), indent size, and dialect if needed.
- Click Format SQL — your beautified query appears on the right instantly.
- Copy the formatted SQL with the Copy button, or download it as a
.sqlfile.
Why Use Flipper File to Format SQL?
- 100% private — your queries run entirely in your browser. Nothing is sent to a server.
- No login required — open the tool and go. No account, no email, no paywall.
- Keyword capitalization — automatically convert SQL keywords to UPPERCASE or lowercase.
- Configurable indentation — choose 2-space, 4-space, or tab indentation.
- Inline comments preserved —
--and/* */comments are kept intact. - Copy or download — grab your formatted SQL with one click or save it as a file.
Frequently Asked Questions
What is a SQL formatter?
A SQL formatter (also called a SQL beautifier) automatically indents and restructures SQL queries to make them easier to read. It adds consistent line breaks after keywords like SELECT, FROM, WHERE, and JOIN, capitalizes reserved words, and aligns clauses — turning a wall of text into structured, readable code.
Does this work with all SQL dialects?
The formatter handles standard SQL (ANSI/ISO) and works well with queries written for MySQL, PostgreSQL, SQLite, SQL Server (T-SQL), and Oracle. Dialect-specific syntax like TOP (SQL Server) or LIMIT (MySQL/PostgreSQL) is preserved as-is.
Is my SQL query sent to a server?
No. All formatting happens locally in your browser using JavaScript. Your queries never leave your device — there is no server-side processing, logging, or storage.
Can I format large SQL queries?
Yes, there are no size limits. The formatter handles stored procedures, long SELECT statements, and multi-table JOINs without issue.
Does it handle subqueries and CTEs?
Yes. Subqueries (nested SELECTs) and Common Table Expressions (WITH ... AS) are indented properly to reflect their structure.
Will it format stored procedures?
The formatter handles most stored procedure syntax including BEGIN...END blocks, DECLARE, IF, and CASE statements. Results may vary for very complex procedural SQL.
What's the difference between a SQL formatter and a SQL minifier?
A formatter adds whitespace, indentation, and line breaks to make SQL human-readable. A minifier does the opposite — it strips all unnecessary whitespace to reduce file size, useful for production scripts. This tool focuses on formatting/beautifying.
Can I change keyword capitalization?
Yes. Choose UPPERCASE (standard SQL convention) or lowercase for SQL keywords like SELECT, FROM, WHERE, JOIN, etc.