Free Online SQL Formatter & Beautifier — pretty-print and indent SQL queries instantly

SQL Formatter — Free Online Tool

Beautify and re-indent SQL online, free. SQL is the standard query language for relational databases. This formatter re-indents minified or messy SQL with consistent spacing so it is readable and diff-friendly — processing runs in your browser with nothing uploaded.

🚀 Why use this SQL Formatter tool?

It expands compressed SQL back into a clean, consistently indented form without changing its meaning. 100% free, no registration, and complete privacy — everything runs locally in your browser, so your data never touches a server.

Key Features

Instant beautify

Paste minified or messy SQL and get clean, indented output immediately — no upload wait.

📐Consistent indentation

Normalises spacing and nesting so the whole file follows one style, ideal before committing or reviewing.

🔒100% private

Your SQL is formatted locally in JavaScript; nothing is logged, stored, or sent to a server.

🆓Free, no signup

Unlimited formatting with no account or quota, on desktop and mobile.

Popular Use Cases

Code review & diffs

  • Make minified SQL readable
  • Get clean line-by-line diffs
  • Spot structure at a glance

Where SQL is used

  • analytics queries
  • schema migrations
  • reports & dashboards

Debugging

  • Un-minify third-party SQL
  • Trace a rule or statement
  • Understand generated output

What It Handles

Structure

  • Nesting & blocks
  • Comments preserved
  • Whitespace normalised

Output

  • Consistent indentation
  • Readable line breaks
  • Copy or download

Workflow

  • Load an example
  • Re-format any input
  • Runs offline after load

Sources & References

Frequently Asked Questions

How do I format SQL online?

Paste your SQL into the input box and click Format. The formatter runs instantly in your browser and shows the result on the right — no upload, no signup, no installation.

Is this SQL formatter free?

Yes. The SQL formatter is completely free with no limits, no account, and no watermark. All processing happens locally in your browser for privacy.

Is my SQL sent to a server?

No. Your SQL never leaves your device — it is processed locally in JavaScript. We don't upload, log, or store your input, so it's safe for proprietary code and config.

Does formatting change how my SQL works?

No. Formatting only adds indentation and line breaks for readability; it does not change the meaning or behaviour of your SQL.

Can I use the SQL formatter on mobile?

Yes. The tool is fully responsive and works on phones, tablets, and desktops — just open it in any modern browser.

🎓 Pro Tips

  • Tip 1: Format SQL right before committing so diffs show real changes, not whitespace noise.
  • Tip 2: Beautifying does not validate logic — pair it with a linter for SQL to catch errors.
  • Tip 3: Authoritative reference: ISO/IEC 9075 (SQL) — https://www.iso.org/standard/76583.html.