CharMapEx is described as 'Advanced character map'. There are more than 10 alternatives to CharMapEx for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and Android. The best alternative is BabelMap, which is free. Other great apps like CharMapEx are Character Map (Free), WinCompose (Free, Open Source), PopChar (Paid) and Font Viewer (Free).
BabelMap is a free character map application for Windows that allows you to browse through the entire Unicode character repertoire of over 107,000 characters, or search for a particular character by name or by code point.
The character map that works! PopChar is an application that lets you insert special characters, umlauts and foreign letters into any document. With this character map, there is no need to search for or remember complex keystrokes.
Font Viewer is an application which does exactly that - it views fonts! Arrange and view a large number fonts which are installed on your computer, applying their various styles to text of your choice.