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Dense, unformatted SQL is hard to read and debug — proper indentation makes clauses, joins, and conditions much easier to scan at a glance.
This tool formats SQL into clean, indented queries, or minifies already-formatted SQL back down to a single compact line.
How it works
Paste your SQL, choose format (to pretty-print it) or minify (to compress it), and the tool restructures the query accordingly using standard SQL formatting rules for keywords and clauses.
- Enter mode.
- Enter sQL.
- Click Calculate to see your results.
Examples
Formatting a compact query
A dense one-line SELECT statement with several WHERE conditions becomes a clearly indented query with each clause on its own line.
Minifying for storage
A nicely formatted multi-line query can be minified into a single compact line for storing in a config file or passing as a string parameter.
Who should use it
- Cleaning up a dense, hard-to-read query pulled from logs or a database tool.
- Minifying a formatted query for storage in a config file or environment variable.
Industry applications
- Software development and database administration
- Data analysis and business intelligence
Advantages
- Supports both formatting (pretty-print) and minifying (compress) in one tool.
- Produces clean, consistently indented output for complex queries with joins and subqueries.
Limitations
- Does not validate SQL correctness or check for syntax errors.
Common mistakes to avoid
- Assuming the formatter validates SQL syntax — it reformats structure but doesn't check whether the query is logically correct or will execute successfully.
- Formatting SQL that contains string literals with embedded keywords, which can occasionally be reformatted unexpectedly.
Best practices
- Always test a query after formatting or minifying to confirm it still executes as expected in your target database.
Tips
- Format SQL before doing a code review or debugging session — indentation makes it much easier to spot missing joins or misplaced conditions.