You can use only the mouse to select Chinese characters online, including those in the extended Chinese character library. By clicking on the number of strokes of a radical, you can select a radical with the specified number of strokes. Then, by clicking to display the list of Chinese characters, the corresponding characters will be listed. This list includes all Chinese characters in the GBK character set.
Especially for those hard-to-input or obscure characters, you can use this method to obtain their pronunciation, Wubi encoding, explanations, and more.