ChromasnChromas is a free trace viewer for simple DNA sequencing projects which do not require assembly of multiple sequences. Chromas has the following features:nOpens .ab1 chromatogram files from Applied Biosystems DNA sequencers.nOpens SCF and ZTR format chromatogram files created by other sequencers or retrieved from databases.nSave in .scf or Applied Biosystems .ab1 format.nPrint a chromatogram with options to zoom or fit to one page.nAutomatic removal of low-quality sequence (when quality data is available) or vector sequences.nExport sequences in plain text, FASTA, FASTQ, EMBL, GenBank or GCG formats, or formatted with base numbering for presentation.nCopy the sequence to the clipboard in plain text, FASTA or FASTQ format for pasting into other applications.nReverse & complement the sequence and chromatogram.nSearch for subsequences by exact matching or optimal alignment.nDisplay translations in 3 frames along with the sequence.nCopy an image of a chromatogram section for pasting into documents or presentations.nBatch processing, including format conversion, sequence export with vector removal, batch printing and batch export of raw data.nEnhance .ab1 files using the PeakTrace RP component from Nucleics Pty Ltd to improve peak readability and extract more high-quality bases.