Does minifying change how my page looks?

No — only comments and whitespace are removed; all selectors, properties and values remain identical.

Is my CSS uploaded anywhere?

No — minification happens entirely in your browser.

Does this rename classes or variables?

No — this minifier only removes comments and whitespace; class and custom-property names are left untouched.

How much smaller will my file be?

It depends on how much whitespace and how many comments the original had.

Can I reverse minification?

Yes — use the CSS Formatter tool to re-indent minified CSS (comments cannot be recovered, since they are removed).

Does this work on very large stylesheets?

Yes, limited only by your browser's available memory.

Инструменты JSON и кода

Минификатор CSS — Бесплатный онлайн-инструмент

Удаляйте комментарии и пробелы из CSS, чтобы уменьшить размер файла.

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What Is a CSS Minifier?

A CSS minifier strips comments and every unnecessary space, tab and line break from a stylesheet, producing a smaller file that parses to exactly the same styling rules.

Minifying CSS before deploying it to production reduces the number of bytes a browser needs to download, which can meaningfully speed up page load, especially on large stylesheets.

Кто использует этот инструмент?

Для бизнеса

Reduce the size of a stylesheet before deploying it to production.

Для личного использования

Shrink a CSS file for a personal website.

Для студентов

Compare formatted vs minified CSS for a web performance assignment.

Для офисов

Prepare a compact CSS file for an internal tool with strict size limits.

Зачем использовать этот инструмент

Основные возможности

Comment & Whitespace Removal

Strips comments and every unnecessary space and line break.

Instant Minification

Output updates immediately as you paste in CSS.

100% Private

Your data is never uploaded — minification happens entirely in your browser.

One-Click Copy

Copy or download the minified result.

Результат

Преимущества

Faster Page Loads

Smaller CSS files download and parse faster.

Always Equivalent Styling

Minifying never changes which styles apply — only whitespace and comments are removed.

Nothing Uploaded

Safe for proprietary CSS, since nothing leaves your browser.

Пошагово

Как использовать Минификатор CSS

Paste Formatted CSS

Add readable CSS with comments and indentation.

Read the Minified Result

A compact, whitespace-free version appears automatically.

Copy or Download It

Use the Copy or Download button to grab the result.

Характеристики

Технические детали

Параметр	Значение
Ввод	CSS stylesheets
Обработка	No practical limit — handled entirely by your browser
Вывод	Removes comments and unnecessary whitespace only — no property renaming

Это можно проверить

Конфиденциальность и безопасность

Что на самом деле происходит с вашим файлом при использовании этого инструмента.

100% Client-Side

This tool runs entirely inside your browser using JavaScript — nothing you type or generate is ever sent anywhere.

No Upload, Ever

There is no file upload and no server processing step — your data never leaves your device.

Works Offline

Once this page has loaded, the tool keeps working even without an internet connection.

Nothing Stored

Nothing you enter is saved on our servers — refreshing the page clears everything.

No Tracking of Your Input

We have no way to see what you type, generate or convert with this tool.

Как улучшить результат

Советы

Keep a Formatted Source File

Always keep the readable, commented source and minify only the deployed copy.

Combine with Gzip/Brotli on Your Server

Minification and server-side compression work well together for maximum size reduction.

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