SQL Case Converter
Convert SQL keywords to UPPERCASE or lowercase. Runs entirely in your browser.
How to use:
- Paste your SQL query with mixed case keywords
- Choose UPPERCASE or lowercase conversion
- Click the conversion button
- Copy the consistently formatted result
Input
Converted
Converted SQL will appear here.
About this tool
SQL Case Converter is a free online tool that rewrites SQL keywords between UPPERCASE and lowercase while leaving string literals, numbers, and quoted identifiers untouched. Bring a consistently-cased query style to any codebase in one click.
- Modes
- Keywords → UPPERCASE, or keywords → lowercase
- Preserved
- String literals, numbers, comments, and quoted identifiers are never modified
- Input
- Pasted SQL text
- Output
- Re-cased SQL, ready to copy
- Signup
- Not required
- Processing
- Entirely in your browser — pasted SQL is never uploaded
- Difference
- Re-cases keywords only — string literals, numbers, and quoted identifiers are never touched
- Price
- Free, no usage limits
Limitations
- Keyword recognition is pattern-based — a small number of dialect-specific keywords may be left as-is
- The tool changes keyword casing only; it does not rename tables or columns
Case Converter — FAQ
Is the Case Converter free?
Yes. The Case Converter is completely free with no signup and no usage limits, like all SqlInt mini tools.
What can change case?
SQL keywords switch between UPPERCASE and lowercase; identifiers and string literals are left untouched.
Why uppercase keywords?
Uppercase keywords are the most widely used SQL style convention — they make query structure scannable at a glance.
Does my data leave my browser?
No. Every mini tool processes data locally in your browser — pasted text and uploaded files never leave your device.