Runs on-device OCR on one or more images and writes the recognized text into a Word document, one page per image, done entirely on this device.
Yes, completely free with no sign-up, no watermark, and no limit on how often you use it.
No. Every conversion runs in your browser, on your own device. Your file is never sent to a server or stored anywhere but your device.
Image to Text gives you a plain .txt file; this gives you a formatted, editable .docx document.
Yes -- it works in any modern browser on a phone, tablet, or desktop, with no app to install.