Minificador CSS/JS
Minificar e embelezar código CSS e JavaScript
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Como Usar
Cole ou Digite
Insira seu texto, código ou dados na área de entrada.
Escolha as Opções
Selecione a transformação ou formato que deseja aplicar.
Copie o Resultado
Copie a saída para sua área de transferência com um clique.
Por Que Usar Esta Ferramenta
100% Gratuito
Sem custos ocultos, sem planos premium — todos os recursos são gratuitos.
Sem Instalação
Funciona inteiramente no seu navegador. Nenhum software para baixar ou instalar.
Privado e Seguro
Seus dados nunca saem do seu dispositivo. Nada é enviado a nenhum servidor.
Funciona no Celular
Totalmente responsivo — use no seu celular, tablet ou desktop.
CSS and JavaScript Minification for Web Performance
Key Takeaways
- Minification removes whitespace, comments, and unnecessary characters to reduce file sizes by 20–60% on average.
- Smaller CSS and JavaScript files mean faster page loads, especially on mobile networks with limited bandwidth.
- All minification runs in your browser — your source code stays completely private.
Every kilobyte matters for web performance. CSS and JavaScript minification is a fundamental optimization that strips unnecessary characters from source code without changing functionality. While build tools like Webpack and Vite handle this automatically in production pipelines, a quick online minifier is invaluable for one-off optimizations, email templates, and embedded scripts.
Minification typically reduces CSS file sizes by 20–40% and JavaScript by 30–60%.
Size Reduction
Common Use Cases
Email Template Optimization
Minify inline CSS in HTML email templates to stay under email client size limits and improve rendering speed.
Third-Party Script Embedding
Minify JavaScript snippets before embedding them as inline scripts in CMS platforms or widget integrations.
Performance Auditing
Quickly check how much size reduction minification would achieve for files flagged in Lighthouse performance audits.
CDN Payload Optimization
Minify static assets before uploading to CDNs that do not offer automatic minification at the edge.
Pro Tips
Always keep your original unminified source files in version control — minified code should only be used in production.
Combine minification with gzip or Brotli compression for maximum file size reduction — they complement each other well.
Test minified code thoroughly, as aggressive minification can occasionally break CSS specificity or JavaScript variable scoping.
Use source maps in development to debug minified code by mapping it back to the original readable source.
All CSS and JavaScript minification is performed entirely in your browser. Your source code is never uploaded to any server, ensuring your proprietary code and business logic remain completely private.