PKPCB is a fully frontend-based web application that lets users preview RAR and ZIP archive contents directly in the browser using JavaScript. It’s built for speed, privacy, and affordability — no backend required.
The main challenge was implementing archive parsing and tree rendering entirely on the client-side without consuming too much memory or crashing the browser.
We optimized everything for client-side efficiency by streaming file reads and lazy-rendering UI components, and modularized the Vue integrations cleanly.
Since everything runs on the frontend, there's no server cost — pure JAMstack.
No data ever leaves the user’s machine, making it ideal for sensitive files.
A clean and functional tool for anyone dealing with compressed files online.
Partner with us to bring your vision to life. From websites to branding and design, we've got you covered.