CSS Keyframe Name Obfuscator

Rename every @keyframes animation identifier in your CSS to short, random names and automatically update all animation-name declarations and animation shorthand properties. Perfect for obfuscating CSS animation source code in commercial themes, design systems, and client-side stylesheets. Choose from hex-style, short letter, or random naming with complete reference tracking.

Rename every @keyframes animation identifier in your CSS to short, random names and automatically update all animation-name declarations, animation shorthand properties, and vendor-prefixed references. Choose from hex-style, short letter, or random naming styles with complete reference tracking and a downloadable mapping table. All processing runs locally in your browser - no signup required.

Naming Style:

e.g. _0xa, _0x1b

Input: 1,567 bytesOutput: 1,491 bytesKeyframes: 7References updated: 8

CSS Input1,567 bytes

/* Base layout */
.container {
  display: flex;
  gap: 20px;
  padding: 2rem;
}

/* Hero section with entrance animation */
.hero {
  animation: fadeInSlideUp 0.8s ease-out;
}

@keyframes fadeInSlideUp {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Card with pulse effect */
.card {
  animation: pulseGlow 2s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(59, 130, 246, 0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.6);
  }
}

/* Loading spinner */
.spinner {
  animation: spin 1s linear infinite;
  -webkit-animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@-webkit-keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Notification slide-in */
.notification {
  animation: slideInRight 0.3s ease-out, fadeIn 0.3s ease-out;
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Modal with bounce */
.modal-overlay {
  animation: overlayFade 0.2s ease-out;
}

.modal-content {
  animation: modalBounce 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes overlayFade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalBounce {
  0% { transform: scale(0.9); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

Obfuscated CSS Output

1,491 bytes

/* Base layout */
.container {
  display: flex;
  gap: 20px;
  padding: 2rem;
}

/* Hero section with entrance animation */
.hero {
  animation: _0x0 0.8s ease-out;
}

@keyframes _0x0 {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Card with pulse effect */
.card {
  animation: _0x1 2s ease-in-out infinite;
}

@keyframes _0x1 {
  0%, 100% {
    box-shadow: 0 0 5px rgba(59, 130, 246, 0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.6);
  }
}

/* Loading spinner */
.spinner {
  animation: _0x2 1s linear infinite;
  -webkit-animation: _0x2 1s linear infinite;
}

@keyframes _0x2 {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@-webkit-keyframes _0x2 {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Notification slide-in */
.notification {
  animation: _0x3 0.3s ease-out, _0x4 0.3s ease-out;
}

@keyframes _0x3 {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes _0x4 {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Modal with bounce */
.modal-overlay {
  animation: _0x5 0.2s ease-out;
}

.modal-content {
  animation: _0x6 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes _0x5 {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes _0x6 {
  0% { transform: scale(0.9); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

Keyframe Name Mapping (7 names)

#	Original	Obfuscated	Length Change
1	fadeInSlideUp	_0x0	-9
2	pulseGlow	_0x1	-5
3	spin	_0x2	0
4	slideInRight	_0x3	-8
5	fadeIn	_0x4	-2
6	overlayFade	_0x5	-7
7	modalBounce	_0x6	-7

Note: The obfuscation only renames keyframe identifiers and their CSS references. It does not affect JavaScript references made viaelement.style.animationNameor dynamically constructed animation name strings. Use the downloadable mapping table to manually update any external references. Vendor-prefixed declarations (@-webkit-keyframes, -webkit-animation, etc.) are fully supported.

Why Use Our CSS Keyframe Name Obfuscator?

Instant Keyframe Obfuscation

Rename all @keyframes identifiers to short random names with a single click. Our CSS keyframe obfuscator automatically detects every keyframe declaration, generates unique obfuscated names, and updates every reference throughout your stylesheet - no manual work needed.

Complete Reference Tracking

The tool finds and updates every reference to each keyframe name, including animation-name declarations, animation shorthand properties, vendor-prefixed properties (-webkit-, -moz-, -o-), and comma-separated multi-animation values. No reference is left behind.

Downloadable Mapping Table

Keep track of every renamed identifier with a complete mapping table showing original names and their obfuscated counterparts. Download as CSV to store alongside your project documentation for future reference or manual reversal.

100% Free Forever

Our CSS keyframe name obfuscator is completely free with no hidden costs, no signup required, and no usage limits. Obfuscate as many stylesheets as you need, as often as you need - all processing happens locally in your browser for complete privacy.

Common Use Cases for CSS Keyframe Name Obfuscator

Commercial Theme Protection

Obfuscate keyframe names in commercial CSS themes and templates before distribution. Hide meaningful animation identifiers that competitors could use to identify your theme source code or track unauthorized usage.

Design System Obfuscation

Protect proprietary design system CSS by obfuscating animation names in component libraries. Keep the design language of your animation system confidential while ensuring all animations continue to work correctly.

Production Build Optimization

Integrate keyframe name obfuscation as part of your production build pipeline. Shorter obfuscated names can reduce CSS file size slightly, and obfuscated identifiers make it harder to reverse-engineer minified production stylesheets.

CSS Animation Library Protection

Secure custom CSS animation libraries and frameworks by obfuscating all public keyframe identifiers. Protect the intellectual property of your animation collection while maintaining full functionality for end users.

Commercial Website Security

Add an extra layer of protection to client websites by obfuscating CSS animation names in the delivered stylesheets. Meaningful animation names can reveal implementation details that competitors could exploit.

License Compliance Enforcement

Use unique keyframe name obfuscation per client to create identifiable CSS fingerprints. The mapping table can serve as a record of which version was delivered to which client, aiding license compliance tracking.

Understanding CSS Keyframe Name Obfuscation

What is CSS Keyframe Name Obfuscation?

CSS keyframe name obfuscation is the process of replacing meaningful @keyframes animation identifiers (like fadeInSlideUp orpulseGlow) with short, random names (like _0xaor xk) that reveal nothing about the animation's purpose. This makes the CSS harder to read and reverse-engineer while keeping all animations fully functional.

Obfuscating keyframe names is different from minification - it specifically targets the semantic information carried by animation names, not just reducing file size. A good CSS keyframe name obfuscator must also update every reference to the renamed keyframes throughout the stylesheet to prevent broken animations.

How Our CSS Keyframe Name Obfuscator Works

Parse and Identify: Your CSS is scanned for all @keyframes, @-webkit-keyframes, @-moz-keyframes, and @-o-keyframes declarations. Each unique keyframe name is extracted and cataloged for renaming.
Generate Obfuscated Names: Using your chosen naming style (hex-style _0xa, short letters a, b, aa, or randomxk, zt), the tool generates a unique replacement name for every keyframe identifier. The generator ensures no collisions with existing names.
Update All References: Every reference to each keyframe name is found and updated across your entire stylesheet - including animation-name properties, animation shorthand properties, and all vendor-prefixed variants. The result is a fully functional stylesheet with obfuscated identifiers.

What Gets Renamed During Obfuscation

@keyframes Declaration Names: Every @keyframes rule name is replaced with the generated obfuscated name. This includes all vendor-prefixed variants like @-webkit-keyframes and @-moz-keyframes.
animation-name Property References: All explicit animation-name property values are updated to use the new obfuscated names, including comma-separated multi-animation values.
animation Shorthand References: The animation shorthand property values are intelligently parsed to identify which token is the animation name (distinguishing it from duration, timing function, and other valid shorthand values), and only the name is replaced.
Vendor-Prefixed Properties: All vendor-prefixed animation properties (-webkit-animation-name, -webkit-animation, -moz-animation, etc.) are updated to maintain cross-browser compatibility after obfuscation.

Privacy, Security & Availability

Your CSS code is processed entirely in your browser using JavaScript - no data is ever transmitted to any server. This means proprietary animation names, confidential stylesheets, and commercial CSS never leave your device. Our CSS keyframe name obfuscator is 100% free with no signup required, no usage limits, no file size restrictions, and no hidden charges. Use it as often as you need on any stylesheet for any personal or commercial project.

Frequently Asked Questions About CSS Keyframe Name Obfuscator

A CSS keyframe name obfuscator is a tool that renames @keyframes identifiers in CSS stylesheets to short, random names, making the CSS harder to read while keeping animations fully functional. It also updates all animation-name references and animation shorthand properties throughout the stylesheet to match the new names.

No. Our CSS keyframe obfuscator carefully tracks all references to each keyframe name - including animation-name declarations, animation shorthand properties, vendor-prefixed properties, and comma-separated multi-animation values - and updates every single one to use the new obfuscated name. As long as the original names were correctly referenced, the obfuscated version will work identically.

Absolutely. All CSS parsing, keyframe renaming, and reference updating happens entirely in your browser using pure JavaScript. Your CSS source code never leaves your device. No data is uploaded to any server, and there is no tracking or storage of any code you process.

The tool offers three naming styles: Hex Style renames keyframes to _0xa, _0x1b, _0x2c format (similar to common JavaScript obfuscation patterns), Short Letters uses single and double-letter identifiers (a, b, c, aa, ab), and Random Words uses short pronounceable combinations (xk, qp, zt). All styles produce unique names and equivalent obfuscation.

Yes. The obfuscator handles @-webkit-keyframes, @-moz-keyframes, @-o-keyframes, and standard @keyframes declarations. It also updates -webkit-animation-name, -moz-animation-name, and other vendor-prefixed animation properties. Both the keyframe declaration and its references are consistently renamed across all vendor prefixes.

The tool uses a matching approach - it compares values in the animation shorthand against the list of known keyframe names. Since animation names cannot be valid duration or timing-function values, the tool can reliably identify which part of the shorthand is the animation name. Comma-separated multi-animation shorthands are also fully supported.

The tool only processes CSS text and cannot detect JavaScript references made via element.style.animationName, CSSOM APIs, or dynamically constructed animation name strings. If your JavaScript code references keyframe names, those references must be updated separately using the mapping table provided by the tool.

The obfuscation process is not reversible without the mapping table. We recommend keeping a copy of the original CSS or the mapping table generated by the tool. The mapping table shows every original keyframe name alongside its new obfuscated name, which can be used to manually reverse the transformation if needed.

Yes, our CSS keyframe name obfuscator is 100% free with no hidden costs or limitations. There is no signup required, no premium tier, no usage limits, no file size restrictions, and no advertisements. Use it unlimited times for any personal or commercial project. All processing happens locally in your browser.