Your Friendly Web Development Companion

Prepros compiles your files, transpiles your JavaScript, reloads your browsers and makes it really easy to develop & test your websites so you can focus on making them perfect.

Download Free Unlimited Trial
Available for Windows, macOS and Linux
Trial includes all Prepros features.

Compile Everything

Prepros can compile Sass, Less, Stylus, Tailwind, Pug (Jade) and TypeScript out of the box. You can also add your own tools with just a few clicks.

Bundle JavaScript

Bundle ES6 imports and modules from npm without writing a configuration file.


Find Problems at a Glance

Prepros shows exactly where you have a problem in your code. Forget black screen full of unreadable jumble.

Built-in Server

Prepros comes with a built-in HTTP & HTTPS server. It can serve pages directly from your project folder or proxy them from an external server such as WordPress, Shopify, XAMPP, Wamp, MAMP, etc.

Network Preview

Preview pages on mobile devices with ease. Just scan the QR-Code or open the address. Prepros also reloads all connected mobile browsers automatically every time you make a change in your code.

Automatic Browser Reload

Prepros reloads your browsers automatically every time you make a change in your code.

Hello World
Thank You for Using Prepros

Minify & Optimize

Minify & Optimize assets to save bandwidth and make your sites faster.

Minify JavaScript
Minify & compress JavaScript files
Minify CSS
Minify & compress CSS files
Optimize Images
Optimize jpg, png & svg images

Synchronized Testing

Prepros synchronizes scroll position, mouse, keyboard and form inputs across multiple devices & browsers. Makes it really easy to test sites everywhere.

Scroll Synchronization
Synchronizes relative scroll position.
Mouse Synchronization
Synchronizes taps, clicks & hover
Keyboard Synchronization
Synchronizes keyboard & form inputs

Manage Packages with NPM

Search, install and manage packages from with just a few clicks.

Remote Console (Beta)

Check console logs of mobile browsers remotely.

Export & Upload

Prepros can export files ready for deployment. It can also upload files to a server with FTP & SFTP.

Choose Your Side

Prepros comes with both Dark and Light UI themes.