Privacy-first utilities 1

Privacy-first web utility suite providing fully client-side PDF, image, and developer tools. Rubtin is a privacy-first web utility suite providing fully client-side tools for various digital operations. It allows users to manage and edit PDF files, manipulate image sizes and formats, format developer data, perform financial calculations, generate business invoices, and use local AI utilities such as OCR text extraction, voice transcription, and sentiment analysis directly in the browser. Since all operations run locally via JavaScript, documents and data are never uploaded to any remote server, ensuring complete privacy, security, and no network delays.