RNApasta is a Java software to calculate a variety of useful statistics related to RNA stem-loop and pseudoknot structures. It will also perform a functions related to alignment editing, primarily the generation of subsets of data where the original data set is hetergeneous with respect to some structural feature. The input data is may be in a "pasta" formatted file, a variant of the fasta format; alternatively, the software will also accept Stockholm formatted files as downloaded from the Rfam database. The "pasta" format is defined below, along with more software details and notes.

Requirements:
* Java

The license of this software is Freeware, you can free download and free use this calculator software.