Is it safe to minify SQL queries that contain strings?

Yes. The minifier preserves single-quoted, double-quoted, and backtick-quoted string literals and identifiers exactly. Only whitespace and comments outside of strings are removed.

Will minified SQL still run the same way?

Yes. Minified SQL is semantically identical to the original — the database parses it the same way. Only the formatting changes.

Does this tool send my SQL anywhere?

No. All minification happens entirely in your browser. Nothing is uploaded or stored.

SQL Minifier

Key Features

Removes single-line (--) and block (/* */) comments

Collapses whitespace and newlines

Preserves string literals and identifiers

Copy and download minified SQL

Import SQL from URL or file

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Free Online SQL Minifier

Compress SQL queries into a single line with our online SQL minifier. Paste a query — formatted, commented, multi-line — and the tool removes -- comments, /* */ blocks, and excess whitespace while preserving string literals, identifiers, and operators. Perfect for embedding SQL in code, application logs, configuration files, or anywhere compact output matters.

What the minifier removes

Single-line comments: Everything from -- to the end of the line
Block comments: /* ... */, including multi-line blocks
Redundant whitespace: Tabs, newlines, and runs of spaces collapsed to a single space
Space around punctuation: Trimmed around ;, ,, (, ), =

What is preserved

String literals: Single, double, and backtick quoted values are kept verbatim, including embedded escape characters and SQL-standard doubled quotes
Identifiers: Table and column names retain their original casing
Statement separation: The final ; can be kept or stripped via the toggle

When to minify SQL

Use this tool when you need to store SQL inside a JSON payload, embed it in a Bash script, or pass it through a system that limits line length. Compact SQL is easier to grep and faster to transmit. Need a readable version again? Run the output through the SQL Formatter to restore indentation.