SQL Diff & Compare
Paste two SQL queries to see highlighted line-by-line differences, a change summary, and a similarity percentage. Everything is processed on your device.
Everything runs in your browser. Your data is never sent to our servers.
Example
Example Input
two SQL queries
Example Output
changed clauses highlighted
How to Use
- 1Paste the first SQL queries (A) in the left box and the second (B) in the right box.
- 2Adjust the options if needed (ignore case, whitespace, or empty lines).
- 3Click Compare (or press Ctrl+Enter).
- 4See the highlighted differences, a summary of how many changes there are, and the similarity percentage. Switch between side-by-side / unified / inline views.
About SQL Diff & Compare
SQL Diff & Compare compares two SQL statements or scripts line by line. Useful for reviewing changes to queries, migrations, or stored procedures.
The ignore-case option helps because SQL keywords are often written with different capitalization without changing meaning.
FAQ
What is the difference between "diff" and "compare"?
Both are done by the same tool. "Diff" highlights the lines/parts that changed (added/removed), while "compare" shows how similar the two inputs are (similarity percentage + summary). You get both at once here.
Is my data sent to a server?
No. The entire comparison is computed in your browser with JavaScript. Nothing is uploaded, logged, or stored on our servers — safe for sensitive data.