NovaDevTools.com

Safe formatting and readability analysis for HTML, CSS & JavaScript — runs in your browser.

Clean Your Code. See What Improved. Decide What to Change.

Import HTML, CSS, and JavaScript to standardize formatting, compare changes, and understand readability improvements — instantly in your browser.

How to use NovaDevTools

60-second walkthrough

🏗️

HTML

Structure

HTML (HyperText Markup Language) provides the structure and content of a webpage. It defines what elements exist on the page.

<div> <h1>Hello World</h1> <p>Welcome!</p> </div>
🎨

CSS

Style

CSS (Cascading Style Sheets) controls the visual appearance of HTML elements. It handles colors, fonts, spacing, and layout.

h1 { color: blue; font-size: 2rem; margin: 1rem; }
⚡

JavaScript

Behavior

JavaScript adds interactivity and dynamic behavior to webpages. It responds to user actions and can modify content in real-time.

button.addEventListener('click', () => { alert('Hello!'); });

🛡️ Security & Privacy Measures

Your code stays completely private. NovaDevTools is designed with security at its core.

🔒

Zero Server Processing

All code formatting happens locally in your browser. Your code never touches our servers or any third-party services.

💻

Client-Side Only

100% JavaScript-based processing. No network requests are made when formatting your code. Check your browser's dev tools to verify.

🚫

No Data Collection

We don't track, store, or analyze your code. No analytics, no telemetry, no hidden data collection of any kind.

🔓

Open & Transparent

View the source code in your browser. Every line of formatting logic is visible and auditable by you or your security team.

⚡

Instant Processing

No upload delays or timeouts. Your code is formatted instantly without leaving your device's memory.

✅

Enterprise Safe

Perfect for proprietary code, confidential projects, and environments with strict security policies. No compliance concerns.

Security Recommendation: For maximum security, you can download this page and run it offline. All functionality works without an internet connection.

📝 Code Editor
🔒 Zero-Cloud Processing • Your code never leaves your browser
Your Code
Beautified Output
Live Output Preview

Interactive Controls

ON
ON
ON

Status Output

🔒 Security Check

Before exporting your code, please review the security warnings below:

ℹ️ Pattern-based safety check only. This is not a full security audit.

Privacy & Data Handling

NovaDevTools runs entirely in your browser.

  • We do not upload, store, or analyze your code
  • No accounts, cookies, or tracking are used
  • No analytics or telemetry are collected
  • Your code never leaves your device

You can verify this behavior using your browser's developer tools.