# CSS Viewer

Free online CSS viewer. Open .css stylesheets directly in your browser without uploading them.

> Canonical page: https://elysiatools.com/en/viewers/css

- **Category:** Text Files

- **Supported formats:** .css

## Overview

This CSS viewer renders stylesheet source locally in your browser. Cascading Style Sheets control how web pages look, from colors and spacing to responsive layouts and animations. Pick a sample or choose your own .css file to inspect selectors, custom properties, and rules with highlighting.

## When to use

- You have a CSS file and want to read it without an editor.
- You need to inspect selectors, media queries, or custom properties quickly.
- You are on a device without a code editor and need to browse a .css file.

## How it works

- Select a built-in sample or choose your own .css file.
- The viewer renders the source with syntax highlighting in the browser, with no upload.
- Inspect the rules, then switch samples or load another file any time.

## Use cases

- Reviewing design tokens, variables, and utility classes.
- Inspecting responsive media queries and grid/flex layouts.
- Browsing stylesheet code on any device.

## Samples

- **CSS Comments**: CSS file with multi-line comments and style rules
- **Variables & Card**: A CSS example with custom properties, a card, and a button
- **Flexbox & Grid**: Responsive flexbox and CSS grid layout with a media query
- **Keyframe Animations**: CSS keyframe animations, transitions, and a spinner

## Frequently asked questions

### Is this CSS viewer free?

Yes. It runs in your browser for free and needs no registration or installation.

### Are my CSS files uploaded?

No. Files opened from your device stay on your device. Only public sample files come from the server.

### Does it render the styled page?

No. The viewer shows the stylesheet source with highlighting rather than a live rendered preview.

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