ONYRI Sanitize is a browser based tool for anonymizing PDF, Word, and scanned documents. It detects and masks personal and sensitive information, including names, identification numbers, contact details, dates, financial information, credentials, and technical secrets. Scanned documents are processed using optical character recognition on the device. Users add a document in the browser, review the detected items, and adjust the results by excluding false positives, selecting missed text, or marking an area such as a signature. The tool then produces a masked copy intended to preserve the document’s layout. Its stated workflow keeps files on the user’s device rather than uploading or storing them, and the masks are designed to prevent the covered information from being recovered. The tool is intended for preparing documents to share by email, with colleagues, or with AI services. It supports PDF files, Word documents, and scans, with processing performed in the browser.