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Prepros
What Prepros is
Prepros is a paid website development tool for Linux, macOS, and Windows. It compiles files, transpiles JavaScript, reloads browsers after code changes, and includes compilers for Sass, Less, Stylus, Tailwind, Pug (Jade), and TypeScript. Users can add custom processing tools, bundle ES6 imports and npm modules without a configuration file, and manage packages from npmjs.org. Its built-in HTTP and HTTPS server serves project files or proxies external servers such as WordPress, Shopify, XAMPP, Wamp, and MAMP. Network Preview opens pages on mobile devices and reloads connected browsers. Prepros can minify JavaScript and CSS, optimize JPG, PNG, and SVG images, export deployment files, and upload through FTP or SFTP. The unlimited free trial includes every feature, although there is no free plan. The Prepros Single User License costs $29, paid once as a one-time purchase, not a subscription; extra sales tax, VAT, or GST may apply. Watching every file by default can cause lag in large projects.
Who it suits
Prepros suits web developers working with preprocessors, JavaScript modules, npm packages, and local or mobile previews. It supports users on Linux, macOS, and Windows who want deployment and asset tools in the same application.
What it does well
- Compilers for Sass, Less, Tailwind, and TypeScript
- Bundles ES6 and npm modules
- HTTP and HTTPS preview server
- Mobile browser preview with reloading
- FTP and SFTP deployment uploads
What to know first
- No free plan
- Large projects may lag when all files are watched
- Secure Preview certificates can trigger browser warnings
- One-time license may incur local taxes
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Prepros Single User License | One time purchase. Not a subscription. · Single user license · additional sales tax/VAT/GST may apply depending on your country | $29, paid once |
As prepros.io lists them, read 11 Oct 2026. The maker's own page has the final word.
Verdict
Prepros combines compilation, previews, packaging, optimization, and deployment across three desktop operating systems. Its unlimited trial exposes all features, while the listed license is a one-time 29.00 USD purchase.
Facts from Prepros's own pages
- Asset optimization
- Prepros can minify JavaScript and CSS and optimize JPG, PNG and SVG images. · prepros.io, 11 Oct 2026
- Built-in compilers
- It compiles Sass, Less, Stylus, Tailwind, Pug (Jade) and TypeScript out of the box. · prepros.io, 11 Oct 2026
- Custom tools
- Users can add custom tools to process files that Prepros does not support directly. · prepros.io, 11 Oct 2026
- Deployment
- Prepros can export files for deployment and upload files to a server using FTP or SFTP. · prepros.io, 11 Oct 2026
- JavaScript bundling
- Prepros can bundle ES6 imports and npm modules without requiring a configuration file. · prepros.io, 11 Oct 2026
- Mobile preview
- Network Preview lets users open pages on mobile devices and automatically reloads connected mobile browsers after code changes. · prepros.io, 11 Oct 2026
- Notable limit
- The maker says watching every file in a project by default can cause performance issues and lag in large projects. · prepros.io, 11 Oct 2026
- NPM integration
- Prepros lets users search, install and manage packages from npmjs.org. · prepros.io, 11 Oct 2026
- Preview server
- The built-in HTTP and HTTPS server serves project files or proxies requests from an external server such as WordPress, Shopify, XAMPP, Wamp or MAMP. · prepros.io, 11 Oct 2026
- Purpose
- Prepros compiles files, transpiles JavaScript, reloads browsers and supports website development and testing. · prepros.io, 11 Oct 2026
- Secure preview detail
- Secure Preview generates a locally self-signed CA certificate, which can trigger browser security warnings until the certificate is trusted. · prepros.io, 11 Oct 2026
- Support contact
- The site lists [email protected] as its contact email. · prepros.io, 11 Oct 2026
- Trial
- The free unlimited trial includes all Prepros features. · prepros.io, 11 Oct 2026
Where Prepros stands on Freedom251
- Build Automation Software#37 of 42