SQL Minify — Free Online Tool

A SQL minifier compresses SQL queries by removing unnecessary whitespace, line breaks, and comments while preserving the exact query logic and execution behavior. SWEDevTools: Prism provides a free, browser-based SQL minifier that processes everything locally—no SQL is ever sent to a server—making it safe for proprietary queries, stored procedures, and production database scripts.

Features

• Multi-dialect support: Works with MySQL, PostgreSQL, SQL Server, Oracle, and SQLite syntax variations and dialect-specific features.
• Smart whitespace removal: Removes redundant spaces and line breaks while preserving required spacing between SQL keywords and operators.
• String literal preservation: Correctly handles quoted strings, identifiers, and data values—never modifying content inside quotes.
• Works offline as a PWA: Install SWEDevTools: Prism and minify SQL without an internet connection—ideal for secure or restricted environments.
• No signup required: Minify SQL instantly with zero account creation, no email verification, and no usage limits.
• Local-first processing: All SQL processing happens in your browser. No queries are ever uploaded to a server, keeping your database logic private.
• Pipeline chaining support: Chain minified SQL into hash generators, diff tools, or clipboard formatters in a single pipeline workflow.

Frequently Asked Questions

Is the SQL minifier free?

Yes, the SWEDevTools: Prism SQL minifier is completely free with no signup, no ads, and no usage limits.

Does the SQL minifier work offline?

Yes. SWEDevTools: Prism is a PWA that works without an internet connection once installed on your device.

Is my data safe when minifying SQL?

Yes. All processing happens locally in your browser. No SQL code is ever uploaded to a server, making it safe for proprietary queries and production scripts.

Will SQL minification affect query performance?

No. Minification only removes whitespace and comments. The query execution plan, logic, and performance remain identical to the original formatted version.

Does the tool work with all SQL database types?

Yes. The SQL minifier supports standard SQL syntax and handles dialect-specific features for MySQL, PostgreSQL, SQL Server, Oracle, and SQLite.

Can I minify stored procedures and complex scripts?

Yes. The tool handles stored procedures, functions, triggers, views, CTEs, and complex multi-statement scripts while preserving their functionality.

Are SQL comments completely removed?

By default, yes. Both single-line (--) and multi-line (/* */) comments are removed. You can choose to preserve specific comments like licensing headers.

How much space can SQL minification save?

Typical savings range from 20–40% depending on the amount of formatting and comments. Heavily documented scripts with extensive whitespace see the greatest reduction.

Does minification handle string literals correctly?

Yes. The minifier preserves all string literals, quoted identifiers, and data values exactly as written—content inside quotes is never modified.

How is this different from Prettier or other formatters?

Prettier and formatters add whitespace for readability. A SQL minifier does the opposite—it removes whitespace for compactness. SWEDevTools: Prism also runs locally with no server dependency and supports pipeline chaining.

Is Prism a good alternative to freeformatter.com or beautifytools.com SQL minifiers?

Yes. Unlike freeformatter.com and beautifytools.com, SWEDevTools: Prism processes your SQL entirely in your browser — no queries are ever uploaded to a server. Prism also works offline as a PWA, supports pipeline chaining with 80+ other tools, and provides an ad-free experience with no signup required.

What happened to smalldev.tools?

smalldev.tools is no longer available. Prism by SWEDevTools offers the same developer tools and more, with offline support, pipeline chaining, and completely free usage — no signup required.