Chromatogram viewer for DNA sequence traces

finchtv for macThe FinchTV app allows a user to view sequence traces of DNA on OSX, Mac, Windows, Solaris, and Linux. The app first appeared as the only viewer of the chromatogram capable of displaying the whole trace in the form of a multipane scalable view. Today, FinchTV continues to lead among similar apps showing the views of raw data. It keeps regularly searching for expression and supports multiple platforms.

Here’s what FinchTV does for you:

  • Reads chromatogram files in all of the most popular chromate formats.
  • When it’s possible, the application displays all values of quality above the traces.
  • Chromatogram trace can be displayed as a wrapped view or in the form of a single pane.
  • When it’s available, a user can view the sequence of DNA as well as the extended details of the chromatogram.
  • A user can have the whole trace printed on just one page, or appoint a certain number of panels per each page.
  • Optionally, the sequence of DNA can be exported into a text file formatted as FASTA.

Aside from these options you also can:

  • Edit the base calls;
  • Delete or insert bases;
  • Select sequence data and copy it, to use in other apps;
  • Save the edits, to apply them later to a new file of chromatogram;
  • Use simple base queries or common expressions when searching for sequence data;
  • View your raw data from files AB1;
  • Launch searches NCBI BLAST;
  • Reverse complement sequences and traces.

Version: 1.4

Latest updates

  • Print the trace with customized settings of scale;
  • View and edit files of chromatogram in database Finch Suite;
  • Apply regions of masked vector and quality trimming;
  • Save the edits into the Finch Suite, and more;
  • The application got updates of interface for OS X 10.4 Tiger, received a number of bug fixes, and got major improvements in its performance.

Price: Free

Developer: Geospiza, Inc.


  • Mac OS X 10.2.8 or later

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