JS Obfuscator

JS Obfuscator (JavaScript Code Obfuscator)

Protect Your JavaScript Code - Make It Harder to Steal, Copy, and Reverse Engineer

What is the JS Obfuscator Tool?

The JS Obfuscator (JavaScript Obfuscator) is a free online utility that transforms readable JavaScript source code into an obfuscated, difficult-to-understand version by scrambling variable and function names, encoding strings, injecting dead code, flattening control flow, and applying various code transformations—while maintaining 100% functionality—to protect your code from theft, reverse engineering, and unauthorized copying. This tool prevents competitors, copycats, and hackers from easily reading your JavaScript logic, stealing your algorithms, or modifying your code without permission, addressing the fundamental security challenge that client-side JavaScript is publicly visible to anyone who opens their browser's developer tools.obfuscator+3​

Whether you're a web developer protecting proprietary algorithms, a business owner securing commercial JavaScript applications, a freelancer preventing clients from reusing your code without payment, a SaaS company protecting subscription-based web apps, a game developer securing browser game logic, or anyone building original JavaScript projects, the CyberTools JS Obfuscator provides instant code protection with support for ES2022, customizable obfuscation levels (low/medium/high), advanced features like domain locking and debug protection, source map generation, and browser-based processing for complete privacy.lddgo+2​

How to Use the JS Obfuscator

Using our JavaScript code obfuscation tool is straightforward and powerful:toolsina+1​

Step 1: Input Your JavaScript Codetoolsina​

Add the code you want to protect:toolsina​

• Paste JavaScript code - Copy and paste into input fieldtoolsina​
• Upload .js file - Load JavaScript files from computerlddgo​
• Drag and drop - Drop files into the tool
• Type directly - Enter code manually

Supported JavaScript versions:obfuscator+1​

• ES3, ES5, ES2015, ES2016, ES2017, ES2018, ES2019lddgo​
• Partial ES2020 supportlddgo​
• Full ES2022 supportobfuscator​

Step 2: Choose Obfuscation Levellddgo​

Select protection strength:lddgo​

• Low obfuscation (high performance) - Basic protection, minimal performance impactlddgo​
• Medium obfuscation (optimal balance) - Good protection with reasonable performancelddgo​
• High obfuscation (low performance) - Maximum protection, higher performance costlddgo​
• Custom parameters - Advanced configuration for precise controllddgo​

Step 3: Configure Advanced Optionslddgo​

Customize obfuscation features:lddgo​

Core Obfuscation Options:lddgo​

• Variable renaming - Scramble variable and function nameslddgo​
• String encryption - Encode string literalslddgo​
• Dead code injection - Add fake unused codelddgo​
• Control flow flattening - Obscure program logiclddgo​
• Self-defending - Prevent code beautificationlddgo​

Advanced Security Options:preemptive+1​

• Debug protection - Make debugging nearly impossiblepreemptive+1​
• Domain lock - Restrict code to specific domainslddgo​
• Console output disabling - Block console.log accesslddgo​
• Tamper detection - Detect code modificationspreemptive​
• Date lock - Time-limited code executionpreemptive​

Step 4: Generate Obfuscated Codeobfuscator+1​

Create protected version:obfuscator+1​

• Click "Obfuscate" button - Start obfuscation processtoolsina​
• Instant processing - Results appear immediatelytoolsina​
• Browser-based - No code uploaded to serverslddgo​
• Review output - Check obfuscated codeobfuscator​

Step 5: Copy and Implementtoolsina​

Use your protected code:toolsina​

• Copy obfuscated code - One-click copyingtoolsina​
• Download .js file - Save as JavaScript filelddgo​
• Generate source map - Optional debugging maplddgo​
• Replace original - Use in your projecttoolsina​
• Test functionality - Verify it works correctlyjs-confuser​

What is JavaScript Obfuscation?

Definition and Purposejs-confuser​

Code transformation for protection:

Obfuscation explained:js-confuser​

• Transformation process - Converts readable code to unreadablejs-confuser​
• Maintains functionality - Code works exactly the samejs-confuser​
• Prevents understanding - Makes logic hard to comprehendjs-confuser​
• Deters theft - Protects intellectual propertyjs-confuser+1​
• Security layer - Additional protection measurecodebeautify​

The JavaScript Security Problemtoolsina​

Why obfuscation is needed:

Inherent vulnerability:toolsina​

• Client-side exposure - JavaScript runs in browsertoolsina​
• View Source access - Anyone can read your codetoolsina​
• Easy copying - Simple copy-paste thefttoolsina​
• No native protection - JavaScript has no built-in securitycodebeautify​
• Public algorithms - Business logic visible to competitorstoolsina​

Obfuscation Techniques

1. Variable and Function Name Manglingpreemptive+1​

Rename identifiers to meaningless names:

Name obfuscation:preemptive+1​

• Scrambled names - Readable names become gibberishtoolsina​
• Short random names - Like _0x1a2b, _0x3c4d
• Removes context - No semantic meaningpreemptive​
• Local and global - Can rename both scopeslddgo​

Example:

javascript
// Before
function calculatePrice(quantity, unitPrice) {
  const discount = 0.1;
  return quantity * unitPrice * (1 - discount);
}

// After
function _0xa3f2(_0x4b1c, _0x7e9d) {
  const _0x2f8a = 0.1;
  return _0x4b1c * _0x7e9d * (1 - _0x2f8a);
}

2. String Encoding and Encryptionlddgo​

Hide string literals:

String obfuscation:lddgo​

• Encode strings - Convert to hex, unicode, or base64lddgo​
• String arrays - Store in encrypted arrays
• Dynamic decoding - Decode at runtime
• Hiding API keys - Obscure sensitive strings

Example:

javascript
// Before
console.log("Hello World");

// After
const _0x1a2b = ['\x48\x65\x6c\x6c\x6f\x20\x57\x6f\x72\x6c\x64'];
console.log(_0x1a2b[0]);

3. Dead Code Injectionlddgo​

Add fake unused code:

Dead code insertion:lddgo​

• Random code blocks - Inject meaningless codelddgo​
• Fake functions - Create unused functions
• Confusing logic - Add misleading paths
• Increases complexity - Harder to analyzelddgo​

4. Control Flow Flatteningpreemptive+1​

Obscure program logic:

Control flow transformation:preemptive+1​

• Flatten structure - Convert to switch statementslddgo​
• Opaque predicates - Add always-true/false conditionspreemptive​
• Logic hiding - Obscure execution flowpreemptive​
• State machines - Convert to complex state logic

Example:

javascript
// Before
if (condition) {
  doA();
} else {
  doB();
}

// After (simplified concept)
switch(_0x1a2b) {
  case 0: if(condition) { _0x1a2b = 1; } else { _0x1a2b = 2; } break;
  case 1: doA(); _0x1a2b = 3; break;
  case 2: doB(); _0x1a2b = 3; break;
}

5. Self-Defending Codelddgo​

Prevent beautification:

Anti-tampering:lddgo​

• Detect formatting - Break if beautifiedlddgo​
• Anti-debugging - Prevent dev tools inspectionlddgo​
• Runtime checks - Verify code integritypreemptive​
• Tamper detection - Stop if modifiedpreemptive​

6. Compact Codedaftlogic+1​

Remove whitespace:

Code compression:daftlogic+1​

• Single line output - Everything on one linelddgo​
• No indentation - Remove formattingdaftlogic​
• Smaller file size - Bonus: reduced bandwidthdaftlogic​
• Harder to read - Additional obfuscation layer

Why Use JS Obfuscator?

1. Protect Intellectual Propertyjs-confuser+1​

Stop code theft:

IP protection:js-confuser+1​

• Prevent copying - Make stealing hardertoolsina​
• Protect algorithms - Hide proprietary logictoolsina​
• Secure business rules - Protect competitive advantagestoolsina​
• Deter competitors - Make reverse engineering difficultjs-confuser​
• Safeguard innovations - Protect original worktoolsina​

2. Secure Commercial Applicationstoolsina​

Protect paid products:

Commercial security:toolsina​

• SaaS applications - Protect subscription servicestoolsina​
• Paid tools - Secure premium featurestoolsina​
• Client projects - Prevent unauthorized reusetoolsina​
• License enforcement - Control code usage
• Revenue protection - Prevent piracytoolsina​

3. Prevent Reverse Engineeringcodebeautify+1​

Make analysis difficult:

Security benefits:codebeautify+1​

• Hide implementation - Obscure how code worksjs-confuser​
• Protect APIs - Secure API keys and endpoints
• Deter hackers - Make exploitation hardercodebeautify​
• Slow down attackers - Increase time costjs-confuser​
• Reduce tampering - Detect modificationspreemptive​

4. Reduce Code Vulnerabilitiescodebeautify​

Security improvements:

Additional security:codebeautify​

• Hide structure - Obscure attack surfacecodebeautify​
• Remove debugging info - Less information for attackerspreemptive​
• Protect logic - Make vulnerabilities harder to findcodebeautify​
• Defense in depth - Additional security layercodebeautify​

5. Discourage Unauthorized Modifications

Maintain code integrity:

Anti-tampering:

• Tamper detection - Code checks itselfpreemptive​
• Debug prevention - Block developer toolslddgo​
• Self-verification - Runtime integrity checkspreemptive​
• Domain restrictions - Only runs on authorized domainslddgo​

6. Share Code Safelytoolsina​

Public distribution:

Safe sharing:toolsina​

• Publish demos - Show without revealing everythingtoolsina​
• Open source tools - Protect premium features
• Code samples - Share examples securely
• Portfolio projects - Display work safelytoolsina​

Common Use Cases

Web Application Developerscodebeautify+1​

Web app protection:

Developer scenarios:codebeautify+1​

• Protect client-side business logictoolsina​
• Secure single-page applications (SPAs)
• Hide API integration details
• Protect authentication mechanisms
• Secure payment processing logic
• Shield web app functionalitycodebeautify​

SaaS Companiestoolsina​

Software as a Service:

Commercial protection:toolsina​

• Protect subscription-based appstoolsina​
• Secure premium features
• Prevent unauthorized access
• License management systems
• Trial version limitations
• Feature gating logic

Game Developers

Browser game security:

Gaming applications:

• Protect game logic and mechanics
• Hide scoring algorithms
• Secure in-game purchases
• Prevent cheating and hacks
• Protect multiplayer code
• Shield monetization logic

Freelancers and Agenciestoolsina​

Client work protection:

Professional services:toolsina​

• Prevent code reuse without paymenttoolsina​
• Protect delivered client worktoolsina​
• Secure proprietary frameworks
• Maintain competitive advantage
• Control intellectual property
• License enforcement

E-commerce Stores

Online retail:

Store security:

• Protect checkout processes
• Secure discount calculations
• Hide pricing algorithms
• Shield inventory management
• Protect promotional logic
• Secure cart functionality

Educational Platforms

E-learning security:

Educational apps:

• Protect course content delivery
• Secure quiz and test logic
• Hide answer validation
• Protect certification systems
• Secure payment gating
• Shield assessment algorithms

Features of CyberTools JS Obfuscator

✅ Modern JavaScript Supportobfuscator+1​

Latest ECMAScript versions:

Comprehensive support:obfuscator+1​

• ES2022 support - Full latest standardobfuscator​
• ES3 to ES2019 - Complete supportlddgo​
• Partial ES2020 - Most features supportedlddgo​
• Modern syntax - Arrow functions, async/await, classes
• Framework compatible - React, Vue, Angular code

⚡ Multiple Obfuscation Levelslddgo​

Flexible protection:

Customizable strength:lddgo​

• Low obfuscation - High performance, basic protectionlddgo​
• Medium obfuscation - Optimal balancelddgo​
• High obfuscation - Maximum security, performance trade-offlddgo​
• Custom mode - Full parameter controllddgo​
• Performance tuning - Balance security vs. speedlddgo​

🛡️ Advanced Security Featurespreemptive+1​

Professional protection:

Enterprise-grade security:preemptive+1​

• Debug protection - Blocks developer toolspreemptive+1​
• Domain locking - Restrict to specific domainslddgo​
• Tamper detection - Detect code modificationspreemptive​
• Self-defending - Prevent beautificationlddgo​
• Console disabling - Block console outputlddgo​
• Date locking - Time-limited executionpreemptive​

🎯 Comprehensive Obfuscationlddgo​

Multiple techniques:

Full protection suite:lddgo​

• Variable renaming - Scramble identifierslddgo​
• String encryption - Encode literalslddgo​
• Dead code injection - Add fake codelddgo​
• Control flow flattening - Obscure logiclddgo​
• Function reordering - Randomize function placementpreemptive​

🗺️ Source Map Generationlddgo​

Debugging support:

Development assistance:lddgo​

• Optional source maps - Generate for debugginglddgo​
• Development workflow - Debug obfuscated codelddgo​
• Production security - Remove for deployment
• Selective generation - Choose when to create
• Error tracking - Maintain error reporting

📦 Batch Processinglddgo​

Multiple file support:

Bulk obfuscation:lddgo​

• Single file mode - One file at a timelddgo​
• Batch mode - Multiple files simultaneouslylddgo​
• ZIP file support - Upload compressed archiveslddgo​
• Project obfuscation - Entire projects at once
• Automated workflow - Efficient processing

🔒 Browser-Based Privacylddgo​

Complete privacy:

Secure processing:lddgo​

• Local processing - Everything in browserlddgo​
• No uploads - Code never sent to serverslddgo​
• Your code stays yours - Complete confidentiality
• No data storage - Nothing savedtoolsina​
• Anonymous use - No tracking

🆓 Free and Open Sourceobfuscator+1​

No cost:

Accessible tools:obfuscator+1​

• 100% free - No payment requiredtoolsina​
• Open source - Transparent codejs-confuser​
• No registration - Start immediatelytoolsina​
• Unlimited use - No restrictionstoolsina​
• Community-driven - Active developmentjs-confuser​

💻 User-Friendly Interfacetoolsina​

Easy to use:

Simple operation:toolsina​

• Intuitive design - Clear interface
• One-click obfuscation - Simple processtoolsina​
• Instant results - Immediate outputtoolsina​
• Copy and paste - Easy workflowcodebeautify​
• No technical expertise - Beginner-friendlytoolsina​

Example: Before and After Obfuscation

Example 1: Simple Function

Before (Original Code):

javascript
function calculateTotal(price, quantity, discount) {
  const subtotal = price * quantity;
  const discountAmount = subtotal * (discount / 100);
  return subtotal - discountAmount;
}

const total = calculateTotal(50, 3, 10);
console.log("Total: $" + total);

After (Obfuscated - Simplified Example):

javascript
const _0x4a2f=['Total:\x20$','log'];(function(_0x1b3c,_0x5e9f){const _0x7d4a=function(_0x2c8b){while(--_0x2c8b){_0x1b3c['push'](_0x1b3c['shift']());}};_0x7d4a(++_0x5e9f);}(_0x4a2f,0x1f4));const _0x3f6d=function(_0x1b3c,_0x5e9f){_0x1b3c=_0x1b3c-0x0;let _0x7d4a=_0x4a2f[_0x1b3c];return _0x7d4a;};function _0x9e2c(_0xa1b4,_0x6f8d,_0x5c3a){const _0x2d7e=_0xa1b4*_0x6f8d;const _0x8b4f=_0x2d7e*(_0x5c3a/0x64);return _0x2d7e-_0x8b4f;}const _0x1e5b=_0x9e2c(0x32,0x3,0xa);console[_0x3f6d('0x1')](_0x3f6d('0x0')+_0x1e5b);

What happened:

• Function name changed: calculateTotal → _0x9e2c
• Variables renamed: price → _0xa1b4, quantity → _0x6f8d
• Strings encoded and stored in array
• Numbers converted to hex: 50 → 0x32, 3 → 0x3
• All formatting removed

Example 2: API Call Protection

Before:

javascript
const API_KEY = "sk_live_abc123xyz789";
const API_ENDPOINT = "https://api.example.com/v1/data";

async function fetchData(userId) {
  const response = await fetch(API_ENDPOINT, {
    headers: {
      'Authorization': `Bearer ${API_KEY}`,
      'Content-Type': 'application/json'
    }
  });
  return response.json();
}

After (Obfuscated):

javascript
const _0x2f=['\x73\x6b\x5f\x6c\x69\x76\x65\x5f\x61\x62\x63\x31\x32\x33\x78\x79\x7a\x37\x38\x39','\x68\x74\x74\x70\x73\x3a\x2f\x2f\x61\x70\x69\x2e\x65\x78\x61\x6d\x70\x6c\x65\x2e\x63\x6f\x6d\x2f\x76\x31\x2f\x64\x61\x74\x61'];async function _0x9a(_0x4c){const _0x7b=await fetch(_0x2f[0x1],{'\x68\x65\x61\x64\x65\x72\x73':{'\x41\x75\x74\x68\x6f\x72\x69\x7a\x61\x74\x69\x6f\x6e':'\x42\x65\x61\x72\x65\x72\x20'+_0x2f[0x0],'\x43\x6f\x6e\x74\x65\x6e\x74\x2d\x54\x79\x70\x65':'\x61\x70\x70\x6c\x69\x63\x61\x74\x69\x6f\x6e\x2f\x6a\x73\x6f\x6e'}});return _0x7b['\x6a\x73\x6f\x6e']();}

Protection achieved:

• API key hidden in encoded strings
• Endpoint URL obfuscated
• Function and variable names scrambled
• Header strings encoded
• Much harder to extract credentials

Advanced Configuration Optionslddgo​

Domain Lock Configurationlddgo​

Restrict code execution:

Domain restrictions:lddgo​

json
{
  "domainLock": ["example.com", "www.example.com"],
  "domainLockRedirectUrl": "https://example.com/unauthorized"
}

What it does:lddgo​

• Code only runs on specified domainslddgo​
• Redirects if run elsewherelddgo​
• Prevents code theft and reuselddgo​
• Perfect for client-specific code

Debug Protection Configurationlddgo​

Anti-debugging settings:

Developer tools blocking:lddgo​

json
{
  "debugProtection": true,
  "debugProtectionInterval": 3000,
  "disableConsoleOutput": true
}

What it does:lddgo​

• Makes debugging nearly impossiblelddgo​
• Forces debug mode repeatedlylddgo​
• Disables console outputlddgo​
• Hinders reverse engineeringlddgo​

Self-Defending Configurationlddgo​

Anti-tampering:

Protection settings:lddgo​

json
{
  "selfDefending": true,
  "compact": true
}

What it does:lddgo​

• Code breaks if beautifiedlddgo​
• Prevents formatting tools from workinglddgo​
• Forces compact outputlddgo​
• Makes analysis much harderlddgo​

Best Practices for JavaScript Obfuscation

Testing After Obfuscationjs-confuser​

✅ Always test thoroughly:

Quality assurance:js-confuser​

• Test all functionality - Verify code works correctlyjs-confuser​
• Check all browsers - Cross-browser compatibility
• Test edge cases - Unusual inputs and scenarios
• Performance testing - Check speed impact
• User acceptance - Ensure user experience unchanged
• Error handling - Verify error reporting still works

Performance Considerationslddgo​

✅ Balance security and speed:

Performance optimization:lddgo​

• Choose appropriate level - Low/medium/high based on needslddgo​
• Test performance impact - Measure before and after
• Optimize critical paths - Less obfuscation for hot code
• Consider file size - Higher obfuscation = larger files
• Benchmark regularly - Monitor performance metrics

Source Map Managementlddgo​

✅ Smart source map usage:

Debugging strategy:lddgo​

• Generate for development - Debug easilylddgo​
• Remove for production - Don't expose original codelddgo​
• Secure storage - Keep source maps private
• Error tracking - Use for production debugging internally
• Conditional generation - Build process control

Security Layering

✅ Defense in depth:

Multiple layers:

• Obfuscation + HTTPS - Always use SSL/TLS
• Domain locking - Restrict executionlddgo​
• API rate limiting - Server-side protection
• Token authentication - Secure API access
• Server validation - Don't trust client-side only
• Regular updates - Re-obfuscate with updates

What Not to Obfuscate

❌ Avoid obfuscating:

Exclusions:

• Third-party libraries - jQuery, React, etc.
• Already minified code - No benefit
• Public APIs - Documented interfaces
• Standard conventions - Common patterns
• Open source dependencies - Community code

Legal and Ethical Considerations

✅ Use responsibly:

Ethical usage:

• Own code only - Don't obfuscate others' code without permission
• License compliance - Check library licenses
• Debug support - Provide unobfuscated versions for debugging
• User privacy - Don't hide malicious code
• Transparency - Be honest about obfuscation use

Limitations of Obfuscation

Not True Encryption

Understanding limitations:

What obfuscation isn't:

• Not unbreakable - Determined attackers can reversetoolsina​
• Time-consuming, not impossible - Increases difficultytoolsina​
• Not encryption - Code still executable
• Security layer - Additional protection, not sole defense
• Deterrent - Makes theft harder, not impossiblejs-confuser​

Performance Impactlddgo​

Speed trade-offs:

Performance costs:lddgo​

• Higher obfuscation = slower execution - Especially high modelddgo​
• Larger file sizes - Dead code and encoding increase size
• Runtime overhead - Decoding and checks take time
• Memory usage - Additional memory for obfuscation structures
• Test carefully - Measure actual impactlddgo​

Debugging Challenges

Development difficulties:

Debugging issues:

• Hard to debug - Obfuscated code is difficult to troubleshoot
• Error messages - Less clear in production
• Source maps needed - Require careful managementlddgo​
• Team coordination - Share unobfuscated versions internally
• Support challenges - Harder to help users with issues

Frequently Asked Questions

What does JavaScript obfuscation do?js-confuser​

Transforms readable code:

Obfuscation purpose:js-confuser​

• Makes code unreadable - Transforms to confusing versionjs-confuser​
• Maintains functionality - Works exactly the samejs-confuser​
• Protects from theft - Harder to copy and understandjs-confuser​
• Deters reverse engineering - Makes analysis difficultjs-confuser​
• Hides algorithms - Obscures business logictoolsina​

Is obfuscated code impossible to crack?toolsina​

Not completely unbreakable:

Realistic expectations:toolsina​

• Not 100% secure - Determined experts can reversetoolsina​
• Makes it much harder - Significantly increases difficultytoolsina​
• Time-consuming - Takes substantial efforttoolsina​
• Deters most threats - Stops casual copyingtoolsina​
• Additional security layer - Part of defense strategytoolsina​

Will obfuscation break my code?js-confuser​

Should work if done correctly:

Functionality preservation:js-confuser​

• Exact same functionality - If obfuscated properlyjs-confuser​
• Always test - Verify after obfuscationjs-confuser​
• Proper semicolons - Source code needs proper syntaxdaftlogic​
• Framework compatibility - Modern tools handle frameworks
• Configuration matters - Some options can cause issueslddgo​

Does it affect performance?lddgo​

Yes, some impact:

Performance considerations:lddgo​

• Low obfuscation - Minimal performance impactlddgo​
• High obfuscation - Noticeable performance costlddgo​
• Trade-off decision - Security vs. speedlddgo​
• Test and measure - Benchmark your specific code
• Optimize settings - Balance protection and performancelddgo​

Is my code safe using online obfuscators?lddgo​

Browser-based tools are safe:

Privacy protection:lddgo​

• Browser-based processing - Code never uploadedlddgo​
• Local transformation - Everything runs in your browserlddgo​
• No server storage - Nothing savedtoolsina​
• Completely private - Your code stays yourslddgo​
• Open source options - Transparent tools availablejs-confuser​

Can obfuscation prevent all code theft?toolsina​

No, but helps significantly:

Realistic protection:toolsina​

• Deters casual theft - Stops easy copyingtoolsina​
• Slows down experts - Makes reverse engineering time-consumingtoolsina​
• Raises the bar - Requires advanced skills to cracktoolsina​
• Not foolproof - Skilled attackers can still succeed
• Best practice - Use with other security measures

Should I obfuscate all my JavaScript?

No, be selective:

Strategic obfuscation:

• Critical code only - Proprietary algorithms, business logic
• Not libraries - Don't obfuscate third-party code
• Not debugging code - Keep dev versions readable
• Performance-critical - Use lighter obfuscation
• Cost-benefit - Weigh protection needs vs. drawbacks

What about open source projects?

Generally don't obfuscate:

Open source considerations:

• Transparency expected - Open source means readable
• Community contributions - Need readable code
• License requirements - Some licenses forbid obfuscation
• Premium features - Can obfuscate paid add-ons
• Dual licensing - Obfuscate commercial versions only

Related CyberTools for Code Protection

Complement your JavaScript obfuscation with these related tools on CyberTools:

📦 JavaScript Minifier

• Compress JavaScript
• Remove whitespace
• Reduce file size
• Faster loading

🎨 JavaScript Beautifier

• Format obfuscated code
• Debug obfuscated scripts
• Code readability
• Development aid

🔍 JavaScript Validator

• Check syntax errors
• Validate before obfuscation
• Find bugs
• Code quality

🔒 CSS Obfuscator

• Protect stylesheets
• Obscure CSS logic
• Hide design tricks
• Class name mangling

⚡ Code Optimizer

• Optimize performance
• Remove unused code
• Tree shaking
• Bundle optimization

🛡️ License Key Generator

• Generate license keys
• Software protection
• Access control
• License management

📝 Source Map Generator

• Create source maps
• Debug production code
• Error tracking
• Development workflow

🔐 Base64 Encoder

• Encode strings
• Data obfuscation
• API key hiding
• Simple encoding

Start Obfuscating JavaScript Now

Protect your JavaScript code from theft, reverse engineering, and unauthorized copying. Make your code harder to understand while maintaining full functionality with the CyberTools JS Obfuscator.

✅ Completely free - unlimited obfuscationobfuscator+1​
✅ ES2022 support - modern JavaScriptobfuscator​
✅ Multiple obfuscation levels - low, medium, highlddgo​
✅ Advanced features - domain lock, debug protectionpreemptive+1​
✅ Browser-based - complete privacy, no uploadslddgo​
✅ Variable renaming - scramble identifierslddgo​
✅ String encryption - encode literalslddgo​
✅ Dead code injection - add fake codelddgo​
✅ Control flow flattening - obscure logiclddgo​
✅ Self-defending - prevent beautificationlddgo​

Obfuscate JavaScript Code Now →

For enterprises: Need advanced JavaScript protection for commercial applications? Contact us about enterprise-grade obfuscation, custom domain locking configurations, white-label solutions, automated build pipeline integration, and professional code protection services for large-scale applications.

Important: JavaScript obfuscation is not unbreakable encryption. It makes reverse engineering significantly harder but not impossible. Use obfuscation as part of a comprehensive security strategy, not as your only defense. Always test obfuscated code thoroughly before deployment.js-confuser+1​

Have questions? Reach out at support@cybertools.cfd or visit our Contact Page.

The CyberTools JS Obfuscator helps thousands of developers, businesses, and agencies protect their JavaScript code every day. Join them in securing your intellectual property and preventing code theft with our powerful, free JavaScript obfuscation tool.

Related Resources:

• JavaScript Security Best Practices
• Code Protection Strategies
• Obfuscation vs. Minification Guide
• Reverse Engineering Prevention
• Client-Side Security Tutorial
• All Developer Tools
• Help Center

1. https://obfuscator.io
2. https://codebeautify.org/javascript-obfuscator
3. https://www.lddgo.net/en/encrypt/js
4. https://www.bytehide.com/products/shield-obfuscator/javascript
5. https://toolsina.com/js-obfuscator/
6. https://www.preemptive.com/online-javascript-obfuscator/
7. https://js-confuser.com
8. https://www.daftlogic.com/projects-online-javascript-obfuscator.htm
9. https://js-obfuscator.github.io
10. https://deobfuscate.io