DNA contig assembly
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molecular biology software
contig assembly software

DNA Sequence Assembler

DNA Sequence Assembler features




Release history


Some of the assembly core features are


DNA features Batch assembly. Thousand of contigs can be assembled at once

DNA features Assemble to reference

DNA features Automatic cleaning (trimming) of the bad ends of chromatograms. Details

DNA features Synchronized display between chromatograms and contig, which makes the correction of ambiguous bases much faster and easier.

DNA features Proprietary algorithm for correction of the ambiguous bases.

DNA features A rapid navigation between mismatches. With just one click you can jump to the next mismatch.

DNA features Chromatogram viewer and editor (ABI and SCF).

DNA features Project map

DNA features Automatically save the contig to disk.

DNA features Automatic primer detection and vector removal.

DNA features Fast assembly algorithm

DNA features Top accuracy - DNA Sequence Assembler is not using a "partial solution" algorithm like other programs. The precision of ambiguity correction recorded during testing was better than 96%. The user must only have to confirm program's suggestions instead of editing the contig.

DNA features DNA Sequence Dereplicator

DNA features Save project to disk and re-load it for later inspection/editing.

DNA features Add/remove samples to/from existing projects

DNA features Remember base edits made by user!



Embedded biology tools


DNA features Batch sequence processing (batch ends trimming, vector removal, metadata integration, FASTA conversion...)

DNA features Batch metadata integration tool (RNA Baser only)

DNA features Clone library dereplicator

DNA features Everything to multi-FASTA converter

DNA features Everything to FASTA converter

DNA features State of art GenBank to FASTA converter

DNA features Reverse complement

DNA features One click conversion between several file formats


DNA Sequence Assembler screenshots

Other features

DNA features Easy to use interface: the user can make a contig with only 3 mouse clicks. Just drag and drop your files, then press the 'Start' button and the contig is done. Details.

DNA features BEST price on the market and significant discount when several licenses are ordered. Please see the Prices page for more details

DNA features Low resource requirement: it can run even on very old systems. Incredibly small size: The size of the whole package is about 2MB.

DNA features 100% safe. DNA Baser will never alter your input chromatogram files (results are saved in separate files). Details.

DNA features Auto updating. The program automatically checks and downloads updates from the Internet. Updates are free.



Our customers


Supported file types

DNA Baser supports all popular DNA file formats: ABI, SCF, SEQ, TXT, FASTA, multiFasta, GBK, multiGbk. For details please see this page.

Minimum system requirements

  • Pentium I
  • 0.1 GB RAM
  • Windows XP or higher
  • 4MB free space
  • Monitor resolution: 1024x768

The program requires only few MB or RAM when assembling small contigs. However, more RAM is needed for larger contigs. Note: the program is not suitable for large meta-genomics projects.


OS compatibility matrix

Windows 32 bit (x86)
DNA features
Windows 64 bit (x64)
DNA features


Windows 2000
Windows XP
Windows 2003
Windows Vista
Windows 7
Windows 8
Windows 10


Mac OS
via Parallels/Bootcamp
via WinE






DNA Sequence Assembler screenshots



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