JFLAP 7.0 released August 28, 2009

New items in JFLAP include added zooming to the editor pane, added an undo button, saving in various image files formats, can parse a range of values on transitions [0-9], and can adjust placement of transitions. The JFLAP source is also available.

JFLAP 6.4 released July 13, 2008

New items in JFLAP include automatically adding a trap state to a DFA, reading input strings from a file, and identifying grammers. This version of JFLAP needs to be run in Java 1.5 or higher.

JFLAP 6.3 released May 24, 2008

There are a few new items or modified items in JFLAP 6.3. New items include:

JFLAP Finalist Candidate in NEEDS Premier Award

Announced Oct, 12, 2007 at FIE 2007, JFLAP 6.1 is recognized as a finalist candidate in the NEEDS Premier Award for Excellence in Engineering Education Courseware competition. Here is the press release and the submission packet .

See the Slides and movie demo (.avi) of JFLAP presented at the award ceremony.

The Needs Premier Award is in the process of changing its host and is now being hosted at Engineering Pathway . For current information on this award, please check the Engineering Pathway site.

JFLAP 6.2 released January 14, 2008

There are several new items or modified items in JFLAP 6.2. New items include:

JFLAP Version 6.1 released May 18, 2007

JFLAP 6.1 is now available - Basically version 6.0 with some bug fixes. JFLAP 6.0 was an updated version of JFLAP with pumping lemma, moore and mealy machines, multiple run for grammars, grading for multiple files, Turing machine building blocks, etc. See the Tutorial which describes the new features of JFLAP 6.0 in more detail.

Send bug reports to "jflap AT cs.duke.edu"

Note JFLAP version 4.0b10 and later changes the way JFLAP saves files (xml format) and requires Java 1.4 or higher. If you have old JFLAP files (pre version 4.0b10), you will first need to use 4.0b10 to convert those files. Then you can use the most recent version of JFLAP.


The National Science Foundation has supported JFLAP for many years. Grants include DUE-9354791 (transfered to DUE-9596002) , DUE-9555084, DUE-9752583, DUE-0442513 and DUE-1044191. Any opinions, finding and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

Last modified: Thu Sep 13 11:56:50 EDT 2012