Upload a photo and the tool obscures every face it finds using on-device face detection — no third-party AI service ever sees your image. Detection runs with Google's BlazeFace model loaded locally on the server, and the actual blurring is done with libvips/Sharp. The output is a high-quality JPEG with the original aspect ratio preserved, so it drops straight into reports, social media, or news articles without further editing.

Three obscuration styles are available. Gaussian blur applies a smooth, recognisable-shape-but-not-identifiable haze and looks natural in editorial photography. Pixelate replaces each face with a coarse colour mosaic — slightly more jarring but irreversible against modern depixelation attacks when the block size is large enough. Solid black box is the most assertive option and is the right choice for whistleblower photos, court evidence, or any image where any partial visibility is unacceptable.

The Face padding slider extends the obscured area outward from each detected face by a configurable fraction (0 = tight crop on facial features, 1 = doubled bounding box). Increase padding if hair, ears, or chin are still visible after detection. If no face is detected the tool returns the original image unchanged with a note — try a clearer, front-facing photo or another image.