Why Client-Side Tools Are Safer for Your Data

The Old Way: Server-Side Processing

Traditionally, when you used an online tool (like a PDF merger), your file was uploaded to a remote server. The server processed it and sent it back. This creates a risk: what happens to your file while it is on their server? Is it deleted? Is it hacked?

The New Way: Client-Side Technology

Modern web technologies like WebAssembly allow browsers to run heavy code directly on your laptop. DocCraft uses this approach.

Benefits of Client-Side Tools

• Privacy: Your file never leaves your device. It is mathematically impossible for us to see it.
• Speed: No upload time. A 1GB video processes instantly because it doesn't need to travel through the internet.
• Security: Corporate firewalls trust it because no data is being exfiltrated.

How to Verify

You can verify this yourself. Turn off your Wi-Fi and try using our Image Compressor. It will still work perfectly. That is the proof of true offline privacy.