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diffoscope

In-depth comparison of files, archives, and directories.


diffoscope tries to get to the bottom of what makes files or directories different. It will recursively unpack archives of many kinds and transform various binary formats into more human-readable form to compare them. It can compare two tarballs, ISO images, or PDF just as easily.

Latest release: 213 (20 May 2022)


You can try it now using Docker:

echo foo > file1
echo bar > file2
docker run --rm -t -w $(pwd) -v $(pwd):$(pwd):ro \
      registry.salsa.debian.org/reproducible-builds/diffoscope file1 file2

… or try it on try.diffoscope.org!

News

(RSS)

Examples

Example of diffoscope HTML output

Firefox extensions compared (HTML output)

Example of diffoscope text output

Debian packages compared (text output)

… and more examples on tests.reproducible-builds.org. You can also view an demonstration interactive shell session (220K).

Features

Get diffoscope

Contribute

diffoscope is developed within the “Reproducible builds” effort.

Extending diffoscope to support new formats is quite straightforward in most cases. It also has a comprehensive test suite. Patches welcome!

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License

diffoscope is free software licensed under the GNU General Public License version 3 or later.

Contributors

Alexis Murzeau, Alyssa Ross, anthraxx, Balint Reczey, Baptiste Daroussin, Ben Hutchings, Benjamin Peterson, beuc@beuc.net, Brandon Maier, Brent Spillner, Brett Smith, Ceridwen, Chris Lamb, Clemens Lang, Conrad Ratschan, Daniel Fullmer, Daniel Kahn Gillmor, Daniel Shahaf, Dhole, Dimitrios Apostolou, Ed Maste, Eli Schwartz, Emanuel Bronshtein, Esa Peuha, Felix C. Stegerman, Frazer Clews, Graham Christensen, Guangyuan Yang, Hans-Christoph Steiner, Helmut Grohne, Holger Levsen, HW42, James Clarke, Jean-Romain Garnier, Jelle van der Waa, Jelmer Vernooij, Joachim Breitner, Juliana Oliveira, Juliana Oliveira Rodrigues, Juliana Rodrigues, Jérémy Bobbio, Keith Smiley, klemens, Marc Herbert, Marek Marczykowski-Górecki, Maria Glukhova, Marius Gedminas, Mattia Rizzolo, Michael Osipov, Michel Messerschmidt, Mike Hommey, Mike McQuaid, Milena Boselli Rosa, Paul Gevers, Paul Spooren, Paul Wise, Peter De Wachter, Rainer Müller, Reiner Herrmann, Ricardo Gaviria, Roland Clobus, Santiago Torres Arias, Santiago Torres-Arias, Satyam Zode, Sergei Trofimovich, siamezzze, spillner, Vagrant Cascadian, Vibhu, Will Thompson, Xavier Briand, Ximin Luo, Yasushi SHOJI, Zachary T Welch, and Zbigniew Jędrzejewski-Szmek.