SQL Formatter
Format SQL online with consistent keyword casing and indentation — turn long SELECTs, JOINs and stored procedures into readable code, right in your browser.
This tool runs entirely in your browser. Your data never leaves your device — it is not uploaded to any server.
How to use
- 1Paste your SQL into the input box.
- 2The formatted query appears as you type, with keywords upper-cased and clauses aligned.
- 3Copy the readable SQL or clear the input to format another query.
SQL Formatter
Paste a dense one-line query and get properly structured SQL back instantly: clauses break onto their own lines, nested expressions indent consistently, and keywords are upper-cased for easy scanning. Powered by the sql-formatter engine, so the rules are the same ones real teams rely on.
Perfect for reviewing generated queries, debugging ORM output, documenting stored procedures or untangling a 40-line WHERE clause someone left in a comment.
Frequently asked questions
Which SQL dialects are supported?
Formatting works across standard SQL, and the underlying engine also understands dialect-specific syntax from PostgreSQL, MySQL, T-SQL, PL/SQL, BigQuery, Snowflake and more — common structures format correctly everywhere.
Will formatting change what my query does?
No. Only whitespace and keyword casing change. String literals and quoted identifiers are preserved exactly, so the query is semantically identical.
Is my query sent to a server?
No. Formatting runs locally in your browser — your SQL never leaves your device.
Related tools
JSON Formatter
Format and beautify messy JSON online — 2 spaces, 4 spaces or tabs, with instant validation and precise error locations. 100% in your browser.
All tools →
JSON to CSV
Convert JSON arrays of objects to CSV with correct quoting and escaping — spreadsheet-ready for Excel, Sheets or database import. Fully in-browser.
All tools →
CSV to JSON
Convert CSV to JSON with automatic type inference — numbers, booleans and nulls are detected, quoted fields handled. Paste, convert, copy. Nothing uploaded.
All tools →
Embed this tool
Put this tool on your own site with one line — it runs entirely in the visitor's browser.
<iframe src="https://zoyku.com/en/tools/sql-formatter?embed=1" width="100%" height="640" style="border:0;border-radius:16px" title="Zoyku — sql-formatter" loading="lazy"></iframe>