Free sequencing software for windows

SequenceViewer includes the DNAViewer and RepeatsViewer tools. These windows based computer programs creates graphical images from text DNA sequences in FASTA format. The images created by the tool can help in identifying repeating patterns, letter concentrations in different regions and possibly give clues about the DNA physical structure.

CLC Sequence Viewer 6.0.2 is designed to enable users to make a large number of bioinformatics analyses, combined with smooth data management, and excellent graphical viewing and output options.

Some of the many bioinformatics analyses are: Interactive restriction site analysis, Creating and editing alignments, Phylogenetics, Integrated GenBank searches, Advanced DNA to Protein translation.

Enhancements:

• Fixed error and improved performance of Join Sequences tool.

With Web Sequence Grabber you can download files from the internet. The program uses a list of internet locations (URLs) that will be loaded. The locations can contain filename patterns. These patterns simplify the loading of numbered files from the web. Web Sequence Grabber can connect and disconnect your computer to the internet. Disconnection will occur at a specified time or after completion of the transfer. The program is written in German and English, the help is written in German.

Sequence Analysis is a free, useful and one of the easiest way to extract sequences of 2 or more letters from text files Sequence Analysis is a free, useful and one of the easiest way to extract sequences of 2 or more letters from text files with no need for advance preparation as stripping is done prior to analysis.
Using the Open File button on the tool bar, you may open a standard text (.txt) file for processing. The size of the file in bytes, and the file name and path, are displayed on the status bar.
Using the Close File button, the data stores and displays are cleared.
The Parameter button permits entry of the sequence length and this must be set to at least two (digraph search) and not greater than the length of the stripped data (if set higher, the program will automatically reset the parameter to equal the file length and no repeated sequences will be found).
The Analyse button performs the required analysis and displays the results in the left side window. By default these are displayed in alphabetical order. The results provide a list of sequences appearing more than once, and the frequency at which they occured. The number of different sequences found is displayed on the status bar (if none are found then "Results = 0 item[s]" is displayed).