MergeFrame is built on a simple principle: the only computer that needs to touch your images is yours. Using the browser's Canvas API, MergeFrame reads your images locally, arranges them into a grid, and exports the result. Zero bytes leave your device. No server ever sees your photos.

**How Browser-Based Image Processing Works:** (1) You select or paste an image — the browser creates an in-memory Image object. (2) MergeFrame draws that image onto an HTML5 Canvas element — a pixel buffer in your browser's memory. (3) This repeats for each image, placing each at the correct grid position. (4) When you click Export, the browser reads the canvas and encodes it as PNG, JPEG, or WEBP — saved directly to your downloads. At no point is any image data transmitted over the network.

**Why Privacy Matters for Image Grids:** Pre-launch product photos — uploading mockups to a cloud service means a potential leak. Medical and legal documents — HIPAA and GDPR don't care if it's 'just a grid tool.' Proprietary code screenshots — sending screenshots to a third-party server violates most corporate security policies. Personal photos — do you want them on a server you don't control? Identity documents — NEVER upload identity documents to random web services.

**MergeFrame Security Pledge:** We don't upload your images. We don't store your images. We don't process your images on our servers. We don't use your images to train AI models. We don't analyze, resell, or log your image content. We don't even have the infrastructure to do any of the above — the image processing code runs entirely in your browser.