Try short sequences first to gauge how they perform on your computer. Save As from the File menu. As from the File menu. Enter a file name and select Web Page HTML only from the Save as type list. You can download a zipped version of this site if you wish to use it off-line.
Some web browsers limit the amount of text that can be entered into a text area.
Once this limit is reached, additional text is not displayed in the text area, and it is not made available to programs that access the text area. You may want to try a different web browser if you find that the one you are using has a low input limit for text areas. For example, Internet Explorer 5.0 for Windows accepts much more input than Netscape Communicator 4.7 for Windows. The only degenerate base that is accepted is n . If you want to use a sequence that contains other degenerate characters first use Filter DNA to convert those characters to n 's.