Security Architecture & Privacy Manifest
Technical verification of our 100% client-side execution sandbox.
PixelShift.cc is engineered under the principle of Privacy by Design. Traditional online image converters upload your files to external cloud servers, creating vectors for data leakage, unauthorized retention, and compliance breaches. PixelShift processes all files entirely in your local browser sandbox. Your source files never cross the network.
Local Data Processing Lifecycle
Selected images are loaded into local HTML5 File objects in memory. No network transmission occurs.
Native browser Canvas API and compiled WASM decoders process binary data locally in the browser sandbox.
The browser compiles the converted file output directly into a local Blob URL for immediate save.
pixelshift.cc or any third-party API during the conversion pipeline. Optional Google Analytics 4 requests (page/session metadata only, opt-in via cookie consent) are separate from file processing. Under the Hood: Technologies Used
WebAssembly (Wasm) Encoders
Next-gen, high-performance image formats like WebP and AVIF require specialized codecs. We compile optimized native C/C++ libraries into WebAssembly instructions, allowing the browser to encode heavy graphics at near-native speeds right in your browser tab.
HTML5 Canvas API
To crop, resize, or fill backgrounds (e.g. adding white backgrounds underneath transparent layers), we manipulate image buffers dynamically utilizing hardware-accelerated Canvas Rendering Contexts inside the document frame.
How to Verify PixelShift Offline Security
We encourage developers, systems administrators, and privacy officers to audit our applications independently. Follow these simple steps to verify that your image and document data are not exfiltrated during conversion:
- Open Developer Tools: Press
F12orCtrl + Shift + I(Cmd + Option + I on Mac) inside your browser. - Navigate to Network Tab: Select the Network tab and select the "All" or "Fetch/XHR" filter.
- Load and Convert Files: Upload an image or dynamic layout to the converter queue, adjust settings, and click "Convert All".
- Audit Conversion Traffic: Verify that no new outgoing requests carry your image or document file content during the conversion sequence. You may see Google Analytics requests if you have accepted analytics cookies — those carry page/session metadata only, not your files.
- Go Completely Offline (Optional): Disconnect your WiFi or enable Airplane mode on your device. You will notice the conversion pipeline completes flawlessly, proving zero server dependencies for file processing.
Interested in verifying the compliance framework of our local environment?