Free HTML CSS JavaScript Minifier & Beautifier Online
Minify and beautify HTML, CSS, and JavaScript code instantly. Reduce file size, improve performance, and format code for better readability. Free online code formatter.
What is a Code Formatter & Minifier?
A Code Formatter (Beautifier) reorganizes messy source code into a clean, readable format using proper indentation and spacing. Conversely, a Minifier strips away all unnecessary characters—like spaces and comments—to drastically reduce file size and boost website loading speeds.
Why Optimize Code?
- ✓Faster Load TimesMinification reduces file size for instant rendering.
- ✓Better SEOSearch engines reward fast-loading websites.
- ✓Easy DebuggingBeautified code helps you spot bugs quickly.
- ✓Bandwidth SavingsLess data transfer means lower hosting costs.
How to Use
Format or minify your code in three simple steps
Select Settings
Choose your programming language (HTML, CSS, JS) and select Beautify or Minify mode.
Paste Code
Paste your raw or messy source code into the input text area.
Process & Copy
Click the action button and instantly copy or download the optimized output.
Common Use Cases
Production Build
Minify all JS/CSS files before deploying to a live web server.
Code Reviews
Beautify third-party scripts to understand their logic and flow.
Collaboration
Format code consistently before sharing with team members.
Reverse Engineering
Un-minify obfuscated code to analyze how a website works.
Optimization Best Practices
Keep Original Source
Never overwrite your original, commented code with minified code.
Minify for Prod Only
Use un-minified code for local development and debugging.
Standardize Formatting
Beautify code before committing to Git to maintain clean diffs.
Backup Data
Always download or copy your processed code before clearing the input.
Explore Other Tools
Frequently Asked Questions
Everything you need to know about code minification and beautification.