Spanish word's values search engine can quickly look for the frequency, length, and part-of-speech values for a list of words.
The reference database for lexical frequency is the one from LEXESP. The data are shown in frequency per million, the logarithm (+1) of the frequency per million and the absolute frequency.
Words can be copied and pasted directly from other programs such as Microsoft Excel. You can even select cells from different columns. Any non-lexical symbol will be automatically removed.