JS Minifier

Minify JavaScript Online

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JS MinifierMinify JavaScript Online · Powered by Terser
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input.js1.83 KB · 68L
// User authentication module
class AuthManager {
  constructor(config) {
    this.apiUrl = config.apiUrl || 'https://api.example.com';
    this.tokenKey = config.tokenKey || 'auth_token';
    this.refreshKey = config.refreshKey || 'refresh_token';
    this.timeout = config.timeout || 5000;
  }

  /**
   * Login with email and password
   * @param {string} email
   * @param {string} password
   * @returns {Promise<object>}
   */
  async login(email, password) {
    console.log('Attempting login for:', email);
    debugger;

    const response = await fetch(`${this.apiUrl}/auth/login`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ email, password }),
    });

    if (!response.ok) {
      const error = await response.json();
      throw new Error(error.message || 'Login failed');
    }

    const data = await response.json();
    localStorage.setItem(this.tokenKey, data.token);
    localStorage.setItem(this.refreshKey, data.refreshToken);
    return data.user;
  }

  async logout() {
    const token = localStorage.getItem(this.tokenKey);
    if (!token) return;

    try {
      await fetch(`${this.apiUrl}/auth/logout`, {
        method: 'POST',
        headers: { 'Authorization': `Bearer ${token}` },
      });
    } catch (err) {
      console.error('Logout error:', err);
    } finally {
      localStorage.removeItem(this.tokenKey);
      localStorage.removeItem(this.refreshKey);
    }
  }

  isAuthenticated() {
    const token = localStorage.getItem(this.tokenKey);
    if (!token) return false;
    const payload = JSON.parse(atob(token.split('.')[1]));
    return payload.exp > Date.now() / 1000;
  }

  getUser() {
    const token = localStorage.getItem(this.tokenKey);
    if (!token) return null;
    return JSON.parse(atob(token.split('.')[1]));
  }
}

export default AuthManager;
minified.js29 B · 1L
1"color:#4b5563;font-style:italic">// Output will appear here…
Why Terser?
Terser is the same engine used by Webpack, Vite, and Rollup. It produces smaller output than uglify-js while supporting modern ES syntax.
Mangle vs Compress
Compress eliminates dead code & folds constants. Mangle renames variables to single letters. Both together give the best compression — disable mangle if you need readable variable names.
Source Maps
Enable Inline Source Map to generate a base64-encoded map inside the output file. This lets DevTools map minified code back to your original source for debugging.

How to use

Paste your JavaScript code in the input field above.
Click "Minify JS".
Wait a moment while we compress and optimize your JavaScript code.
Copy the minified JavaScript code and use it in your website or application.

Why use this tool?

completely free, forever

No sign-up, no watermarks, and no daily limits.

Optimize & Compress

Minify your JavaScript code to reduce file size and improve website performance.

Fast & Efficient

Quickly minify JavaScript code with just a few clicks to boost loading speed.

SEO & Performance Boost

Optimized JavaScript leads to faster load times and better SEO ranking.

All Devices

Works on Windows, Mac, iPhone, iPad, and Android devices.

Frequently asked questions

Is this JS minifier free?▼

Yes — 100%. All tools on dipsac.com are completely free. No account needed, no watermarks, no daily limits.

How do I minify my JavaScript code?▼

Paste your JavaScript code into the input field, click 'Minify JS', and copy the minified version once it's ready.

What does JavaScript minification do?▼

JavaScript minification removes unnecessary spaces, comments, and line breaks from your code, reducing file size and improving website performance.

Is my data secure during the minification process?▼

Yes, your data is processed securely and deleted automatically after the minification to ensure privacy and security.

Which devices are supported?▼

Works on Windows, Mac, iPhone, iPad, and Android devices.

About JS Minifier

Minify JavaScript Online This free online tool runs entirely in your browser — no files are ever uploaded to our servers, ensuring your data stays private and secure. No registration, no watermarks, no limits.

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JS Minifier

JS Minifier

How to use

Why use this tool?

Frequently asked questions

About JS Minifier

Need to process files at scale?