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GNU DDD, the Data Display Debugger, is a graphical front-end for command-line debuggers. Many back-end debuggers are supported, notably the GNU debugger, GDB. In addition to usual debugging features such as viewing the source files, DDD has additional graphical, interactive features to aid in debugging.


Online manual in HTML, PDF, and Postscript from https://www.gnu.org/software/ddd/manual/; PDF, PostScript; texinfo sources, info files, and plain text version included

Heckert gnu.small.png This is a GNU package:ddd


Download version 3.3.12 (stable)
released on 11 February 2009

VCS Checkout


Related Projects


LicenseVerified byVerified onNotes
GPLv3orlaterJanet Casey31 January 2001

Leaders and contributors


Resources and communication

Audience Resource type URI
Bug Tracking E-mail mailto:bug-ddd@gnu.org
Developer,Help,Support E-mail mailto:ddd@gnu.org
Bugs Bug Tracking https://savannah.gnu.org/bugs/?group=ddd
Developer VCS Repository Webview http://svn.savannah.gnu.org/viewvc/?root=ddd

Software prerequisites

Kind Description
Required to build GNU compiler collection version 2.7.2 or higher (or another C++ compiler); LessTif user interface toolkit version 0.89 or higher (or another Motif-compatible user interface toolkit)
Weak prerequisite Gnuplot
Weak prerequisite Athena Widget set
Weak prerequisite XPM lib
Required to use GNU debugger GDB version 4.16 or later (or another command line debugger)

This entry (in part or in whole) was last reviewed on 11 October 2015.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.

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