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    1. Home
    2. Help Center
    3. Privacy & Security
    4. How Client-Side Processing Works
    Back to Privacy & Security

    How Client-Side Processing Works

    Most online tools operate on a 'Client-Server' model: you send your file to their server, they process it, and send it back. The problem is that once you click 'upload', you lose control of your data. It could be stored, scanned, or even leaked. ToolNet flips this model by using 'Client-Side Processing' via WebAssembly (WASM).

    When you use a tool on our site, the 'engine' (the code that does the merging, resizing, or converting) is actually downloaded and run inside your browser on your own computer. Your files never leave your device. The 'Upload' button on ToolNet isn't actually uploading to a server; it's just 'loading' the file into your browser's local RAM. This is a fundamental shift in how web software works.

    This architecture provides a physical guarantee of privacy. Even if ToolNet's servers were compromised, your files would remain safe because they were never on our servers in the first place. We are physically unable to see what you are doing, which makes our platform the safest environment for handling sensitive documents, private photos, and corporate data.

    This 'Local-First' approach isn't just about security; it's also about speed. By eliminating the need to transmit large files back and forth over the internet, we remove the main bottleneck of online tools. Your processing speed is limited only by your own hardware, not your internet connection. It's the future of private, high-performance web computing.

    Privacy is our Priority

    Like all our tools, the operations described in this guide happen 100% in your browser. No data is ever uploaded.

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