Free-OCR.com is a free online OCR (Optical Character Recognition) tool. You can use this to perform OCR on any image you supply.
The service is free, no registration necessary. They also don’t ask for your email address.
Just upload your image files. Free-OCR takes either PDF, JPG, GIF, TIFF or BMP format.
The only restriction is that the images must not be larger than 2MB, no wider or higher than 5000 pixels and there is a limit of 10 image uploads per hour.