Format Messy SQL Queries
Without Uploading Them
ORM output, copied log queries, one-liner JOINs — paste them in and get clean, readable SQL instantly. No server involved.
Why Formatted SQL Matters
ORM frameworks like Django, Rails, and Hibernate generate correct SQL — but it's often a single unreadable line with hundreds of characters. Pasting that directly into a code review, a bug report, or a database documentation page makes it nearly impossible to audit logic or spot performance issues.
Proper formatting — uppercase keywords, consistent indentation, each clause on its own line — reduces the time to understand a query from minutes to seconds. It's also the baseline requirement before running EXPLAIN or optimizing indexes.
Supported SQL Dialects
| Dialect | Common Use | Supported Constructs | Works Here? |
|---|---|---|---|
| MySQL / MariaDB | Web apps, WordPress, Laravel | SELECT, JOIN, GROUP BY, HAVING | ✓ Yes |
| PostgreSQL | Django, Rails, analytics | CTEs, WINDOW, JSONB queries | ✓ Yes |
| SQL Server (T-SQL) | .NET apps, enterprise | TOP, NOLOCK, CROSS APPLY | ✓ Yes |
| Oracle SQL | Enterprise, ERP systems | ROWNUM, CONNECT BY, MERGE | ✓ Yes |
| SQLite | Mobile apps, embedded DBs | Standard SQL, WITH clauses | ✓ Yes |
SQL Formatter Comparison
| Tool | Query Uploaded? | Free? | Safe for Production? |
|---|---|---|---|
| ResourceCentral | Browser only | Free, unlimited | ✓ Yes |
| SQLFormat.org | Uploads to server | Free | ✗ Risk |
| dpriver.com | Uploads to server | Free (limited) | ✗ Risk |
| DataGrip / DBeaver | Local only | Paid / Free | ✓ Yes |
FAQ
Is it safe to format production SQL queries here? +
Yes. Formatting runs entirely in your browser. Your queries never leave your device — no server upload, no logging. Safe for production schemas with sensitive table names, column structures, or business logic.
Can I format ORM-generated SQL (Django, Rails, Hibernate)? +
Yes. Enable query logging in your framework (DEBUG=True in Django, show_sql=true in Hibernate), copy the raw output, and paste it here. The formatter handles the long single-line queries ORMs typically produce.
Does this support CTEs and window functions? +
Yes. Common Table Expressions (WITH clauses), OVER PARTITION BY window functions, nested subqueries, and stored procedures all format correctly with proper indentation at each nesting level.
Why should SQL keywords be uppercase? +
Uppercase keywords (SELECT, WHERE, JOIN) visually separate SQL commands from table and column names, making queries faster to scan during code review. Most SQL style guides from Oracle, Microsoft, and PostgreSQL recommend this convention.
Can I format SQL with syntax errors? +
The formatter will attempt it, but results may be unpredictable with severely broken queries (unmatched parentheses, missing keywords). If formatting fails, the original query is returned unchanged. Fix obvious structural errors first for best results.
Format Your SQL Now
Paste at the top of this page. No account. No uploads. Works on any device.
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