Diff (English Wikipedia)

van Rossum, Guido. "Unified Diff Format". All Things Pythonic. Archived from the original on 2019-12-25. Retrieved 2020-01-29.
Unified Diff Format by Guido van Rossum, June 14, 2006

arxiv.org (Global: 49^th place; English: 31^st place)

Nugroho, Yusuf Sulistyo; Hata, Hideaki; Matsumoto, Kenichi (January 2020). "How different are different diff algorithms in Git?: Use --histogram for code changes". Empirical Software Engineering: 790–823. arXiv:1902.02467. doi:10.1007/s10664-019-09772-z. S2CID 59608676.

catb.org (Global: 7,578^th place; English: 6,551^st place)

Eric S. Raymond (ed.), "diff" Archived 2014-01-31 at the Wayback Machine, The Jargon File, version 4.4.7

code.google.com (Global: 6,691^st place; English: 6,208^th place)

DaisyDiff, https://code.google.com/p/daisydiff/ Archived 2015-03-19 at the Wayback Machine

colordiff.org (Global: low place; English: low place)

"colordiff". www.colordiff.org. Archived from the original on 2018-06-14. Retrieved 2018-06-14.

connect.org.uk (Global: low place; English: low place)

hpux.connect.org.uk

Nachbar, Daniel W (1999-12-01). "HP-UX Porting and Archiving". UK. Archived from the original on 2012-09-05. Retrieved 2013-06-13.
Nachbar, Daniel W (1988-02-02). "Man page". UK. Archived from the original on 2012-09-10. Retrieved 2013-06-16.

coodesoft.com (Global: low place; English: low place)

Compare++, http://www.coodesoft.com/ Archived 2011-11-29 at the Wayback Machine

dartmouth.edu (Global: 2,786^th place; English: 1,776^th place)

cs.dartmouth.edu

James W. Hunt; M. Douglas McIlroy (June 1976). "An Algorithm for Differential File Comparison" (PDF). Computing Science Technical Report, Bell Laboratories. 41. Archived (PDF) from the original on 2014-12-26. Retrieved 2015-05-06.

doi.org (Global: 2^nd place; English: 2^nd place)

Ritchie, Dennis M.; Thompson, Ken (1974-07-01). "The UNIX time-sharing system". Commun. ACM. 17 (7): 365–375. doi:10.1145/361011.361061. ISSN 0001-0782.
E. Myers (1986). "An O(ND) Difference Algorithm and Its Variations". Algorithmica. 1 (2): 251–266. CiteSeerX 10.1.1.4.6927. doi:10.1007/BF01840446. S2CID 6996809. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)
Webb Miller; Eugene W. Myers (1985). "A File Comparison Program". Software: Practice and Experience. 15 (11): 1025–1040. CiteSeerX 10.1.1.189.70. doi:10.1002/spe.4380151102. S2CID 15489614. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)
Esko Ukkonen (1985). "Algorithms for Approximate String Matching". Information and Control. 64 (1–3): 100–118. doi:10.1016/S0019-9958(85)80046-2.
Horwitz, Susan (June 1990). "Identifying the semantic and textual differences between two versions of a program". ACM SIGPLAN Notices. 25 (6): 234–245. CiteSeerX 10.1.1.49.3377. doi:10.1145/93548.93574. Archived from the original on 2010-06-12. Retrieved 2017-11-01. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)
Yang, Wuu (July 1991). "Identifying syntactic differences between two programs". Software: Practice and Experience. 21 (7): 739–755. CiteSeerX 10.1.1.13.9377. doi:10.1002/spe.4380210706. S2CID 10853673. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)
Nugroho, Yusuf Sulistyo; Hata, Hideaki; Matsumoto, Kenichi (January 2020). "How different are different diff algorithms in Git?: Use --histogram for code changes". Empirical Software Engineering: 790–823. arXiv:1902.02467. doi:10.1007/s10664-019-09772-z. S2CID 59608676.

github.com (Global: 380^th place; English: 337^th place)

"git: apply.c". Git. 8 May 2023. Archived from the original on 13 May 2023. Retrieved 15 June 2023.
"diff-so-fancy". So Fancy. 6 May 2023. Archived from the original on 8 May 2023. Retrieved 8 May 2023.
Davison, Dan (8 May 2023). "dandavison/delta". GitHub. Archived from the original on 8 May 2023. Retrieved 8 May 2023.
Waugh, Tim (12 June 2020). "twaugh/patchutils". GitHub. Archived from the original on 1 October 2020. Retrieved 28 June 2020.
"xaizek/zograscope". GitHub. 26 May 2020. Archived from the original on 21 December 2020. Retrieved 27 June 2020.
dontcallmedotcom. "spiff". GitHub. Archived from the original on 2015-03-26. Retrieved 2013-06-16.

gnu.org (Global: 1,901^st place; English: 1,743^rd place)

gnu.org

MacKenzie et al. "Binary Files and Forcing Text Comparison" in Comparing and Merging Files with GNU Diff and Patch. Downloaded 28 April 2007. Archived 2017-12-19 at the Wayback Machine
"diff Options". GNU Diffutils Manual. Free Software Foundation. Retrieved 11 June 2026.
David MacKenzie; Paul Eggert; Richard Stallman (1997). Comparing and Merging Files with GNU Diff and Patch. Bristol: Network Theory. ISBN 978-0-9541617-5-0. Archived from the original on 2015-03-31. Retrieved 2015-03-17.
"Detailed Description of Unified Format". GNU Diffutils (version 3.7, 7 January 2018). Archived from the original on 18 January 2020. Retrieved 29 January 2020.
2.2.3 Showing Which Sections Differences Are in, GNU diffutils manual
"Incomplete Lines (Comparing and Merging Files)". www.gnu.org. Archived from the original on 2023-05-08. Retrieved 2023-06-15.
GNU Diff utilities Archived 2015-03-16 at the Wayback Machine. Made available by the Free Software Foundation. Free Documentation. Free source code.
"merge (GNU RCS 5.10.0)". gnu.org. Archived from the original on 18 September 2019. Retrieved 22 January 2021.
"gnu.org". gnu.org. Archived from the original on 2020-08-11. Retrieved 2020-09-12.

git.savannah.gnu.org

"patch.c\src - patch.git - GNU patch". git.savannah.gnu.org. Archived from the original on 2023-05-08. Retrieved 2023-06-15. In git-style diffs, the "before" state of each patch refers to the initial state before modifying any files,..

groups.google.com (Global: 2,153^rd place; English: 1,445^th place)

Larry Wall (November 9, 1984). "A patch applier--YOU WANT THIS!!!". Newsgroup: net.sources. Usenet: 1457@sdcrdcf.UUCP. Archived from the original on February 19, 2022. Retrieved May 11, 2015.
Larry Wall (November 29, 1984). "patch version 1.2--YOU WANT THIS". Newsgroup: net.sources. Usenet: 1508@sdcrdcf.UUCP. Archived from the original on March 21, 2020. Retrieved May 11, 2015.
Larry Wall (May 8, 1985). "patch version 1.3". Newsgroup: net.sources. Usenet: 813@genrad.UUCP. Archived from the original on February 19, 2022. Retrieved May 11, 2015.

ibm.com (Global: 1,369^th place; English: 968^th place)

alphaworks.ibm.com

xmldiffmerge, http://www.alphaworks.ibm.com/tech/xmldiffmerge Archived 2009-09-24 at the Wayback Machine

microsoft.com (Global: 263^rd place; English: 259^th place)

msdn.microsoft.com

xmldiffpatch, http://msdn.microsoft.com/en-us/library/aa302294.aspx Archived 2009-10-27 at the Wayback Machine

opengroup.org (Global: 6,630^th place; English: 5,295^th place)

pubs.opengroup.org

diff – Shell and Utilities Reference, The Single UNIX Specification, Version 5 from The Open Group
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_403 Archived 2013-04-29 at the Wayback Machine Section 3.206

prettydiff.com (Global: low place; English: low place)

Cheney, Austin. Pretty Diff - Documentation. http://prettydiff.com/documentation.php Archived 2012-07-31 at the Wayback Machine

psu.edu (Global: 299^th place; English: 159^th place)

citeseerx.ist.psu.edu

E. Myers (1986). "An O(ND) Difference Algorithm and Its Variations". Algorithmica. 1 (2): 251–266. CiteSeerX 10.1.1.4.6927. doi:10.1007/BF01840446. S2CID 6996809. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)
Webb Miller; Eugene W. Myers (1985). "A File Comparison Program". Software: Practice and Experience. 15 (11): 1025–1040. CiteSeerX 10.1.1.189.70. doi:10.1002/spe.4380151102. S2CID 15489614. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)
Horwitz, Susan (June 1990). "Identifying the semantic and textual differences between two versions of a program". ACM SIGPLAN Notices. 25 (6): 234–245. CiteSeerX 10.1.1.49.3377. doi:10.1145/93548.93574. Archived from the original on 2010-06-12. Retrieved 2017-11-01. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)
Yang, Wuu (July 1991). "Identifying syntactic differences between two programs". Software: Practice and Experience. 21 (7): 739–755. CiteSeerX 10.1.1.13.9377. doi:10.1002/spe.4380210706. S2CID 10853673. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)

semanticdesigns.com (Global: low place; English: low place)

SmartDifferencer, http://www.semanticdesigns.com/Products/SmartDifferencer Archived 2009-10-14 at the Wayback Machine

semanticscholar.org (Global: 15^th place; English: 8^th place)

api.semanticscholar.org

E. Myers (1986). "An O(ND) Difference Algorithm and Its Variations". Algorithmica. 1 (2): 251–266. CiteSeerX 10.1.1.4.6927. doi:10.1007/BF01840446. S2CID 6996809. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)
Webb Miller; Eugene W. Myers (1985). "A File Comparison Program". Software: Practice and Experience. 15 (11): 1025–1040. CiteSeerX 10.1.1.189.70. doi:10.1002/spe.4380151102. S2CID 15489614. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)
Yang, Wuu (July 1991). "Identifying syntactic differences between two programs". Software: Practice and Experience. 21 (7): 739–755. CiteSeerX 10.1.1.13.9377. doi:10.1002/spe.4380210706. S2CID 10853673. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)
Nugroho, Yusuf Sulistyo; Hata, Hideaki; Matsumoto, Kenichi (January 2020). "How different are different diff algorithms in Git?: Use --histogram for code changes". Empirical Software Engineering: 790–823. arXiv:1902.02467. doi:10.1007/s10664-019-09772-z. S2CID 59608676.

sourceforge.net (Global: 1,842^nd place; English: 1,520^th place)

freshmeat.sourceforge.net

Libenzi, Davide. "LibXDiff". SourceForge FreshMeat. Archived from the original on 2020-07-01. Retrieved 2020-06-28.

stackoverflow.com (Global: 9,249^th place; English: 6,951^st place)

Davide (2009-09-28). "stackoverflow". Archived from the original on 2022-02-19. Retrieved 2013-06-16.
"algorithm - What's the difference between 'git diff --patience' and 'git diff --histogram'?". Stack Overflow. Archived from the original on 2022-02-19. Retrieved 2020-06-28. This does indeed show that histogram diff slightly beats Myers, while patience is much slower than the others.

tuhs.org (Global: low place; English: low place)

minnie.tuhs.org

"diff - differential file comparison". minnie.tuhs.org. Retrieved 2026-03-25.

utah.edu (Global: 2,766^th place; English: 1,555^th place)

math.utah.edu

"SPIFF 1". 1988-02-02. Archived from the original on 2016-10-02. Retrieved 2013-06-16.

vimhelp.org (Global: low place; English: low place)

Moolenaar, Bram. "Vim documentation: diff". vimdoc.sourceforge.net. Archived from the original on 16 February 2020. Retrieved 1 May 2020. The easiest way to start editing in diff mode is with the "vimdiff" command. This starts Vim as usual and also sets up for viewing the differences between the arguments. vimdiff file1 file2 [file3] [file4] [...file8] This is equivalent to: vim -d file1 file2 [file3] [file4] [...file8]

vimways.org (Global: low place; English: low place)

Brabandt, Christian (1 December 2018). "The power of diff". Vimways. Archived from the original on 2 December 2018. Retrieved 1 May 2020.

web.archive.org (Global: 1^st place; English: 1^st place)

Eric S. Raymond (ed.), "diff" Archived 2014-01-31 at the Wayback Machine, The Jargon File, version 4.4.7
MacKenzie et al. "Binary Files and Forcing Text Comparison" in Comparing and Merging Files with GNU Diff and Patch. Downloaded 28 April 2007. Archived 2017-12-19 at the Wayback Machine
James W. Hunt; M. Douglas McIlroy (June 1976). "An Algorithm for Differential File Comparison" (PDF). Computing Science Technical Report, Bell Laboratories. 41. Archived (PDF) from the original on 2014-12-26. Retrieved 2015-05-06.
Larry Wall (November 9, 1984). "A patch applier--YOU WANT THIS!!!". Newsgroup: net.sources. Usenet: 1457@sdcrdcf.UUCP. Archived from the original on February 19, 2022. Retrieved May 11, 2015.
Larry Wall (November 29, 1984). "patch version 1.2--YOU WANT THIS". Newsgroup: net.sources. Usenet: 1508@sdcrdcf.UUCP. Archived from the original on March 21, 2020. Retrieved May 11, 2015.
Larry Wall (May 8, 1985). "patch version 1.3". Newsgroup: net.sources. Usenet: 813@genrad.UUCP. Archived from the original on February 19, 2022. Retrieved May 11, 2015.
David MacKenzie; Paul Eggert; Richard Stallman (1997). Comparing and Merging Files with GNU Diff and Patch. Bristol: Network Theory. ISBN 978-0-9541617-5-0. Archived from the original on 2015-03-31. Retrieved 2015-03-17.
"Detailed Description of Unified Format". GNU Diffutils (version 3.7, 7 January 2018). Archived from the original on 18 January 2020. Retrieved 29 January 2020.
van Rossum, Guido. "Unified Diff Format". All Things Pythonic. Archived from the original on 2019-12-25. Retrieved 2020-01-29.
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_403 Archived 2013-04-29 at the Wayback Machine Section 3.206
"Incomplete Lines (Comparing and Merging Files)". www.gnu.org. Archived from the original on 2023-05-08. Retrieved 2023-06-15.
"git: apply.c". Git. 8 May 2023. Archived from the original on 13 May 2023. Retrieved 15 June 2023.
"patch.c\src - patch.git - GNU patch". git.savannah.gnu.org. Archived from the original on 2023-05-08. Retrieved 2023-06-15. In git-style diffs, the "before" state of each patch refers to the initial state before modifying any files,..
GNU Diff utilities Archived 2015-03-16 at the Wayback Machine. Made available by the Free Software Foundation. Free Documentation. Free source code.
"merge (GNU RCS 5.10.0)". gnu.org. Archived from the original on 18 September 2019. Retrieved 22 January 2021.
Moolenaar, Bram. "Vim documentation: diff". vimdoc.sourceforge.net. Archived from the original on 16 February 2020. Retrieved 1 May 2020. The easiest way to start editing in diff mode is with the "vimdiff" command. This starts Vim as usual and also sets up for viewing the differences between the arguments. vimdiff file1 file2 [file3] [file4] [...file8] This is equivalent to: vim -d file1 file2 [file3] [file4] [...file8]
Brabandt, Christian (1 December 2018). "The power of diff". Vimways. Archived from the original on 2 December 2018. Retrieved 1 May 2020.
"gnu.org". gnu.org. Archived from the original on 2020-08-11. Retrieved 2020-09-12.
"colordiff". www.colordiff.org. Archived from the original on 2018-06-14. Retrieved 2018-06-14.
"diff-so-fancy". So Fancy. 6 May 2023. Archived from the original on 8 May 2023. Retrieved 8 May 2023.
Davison, Dan (8 May 2023). "dandavison/delta". GitHub. Archived from the original on 8 May 2023. Retrieved 8 May 2023.
Waugh, Tim (12 June 2020). "twaugh/patchutils". GitHub. Archived from the original on 1 October 2020. Retrieved 28 June 2020.
Horwitz, Susan (June 1990). "Identifying the semantic and textual differences between two versions of a program". ACM SIGPLAN Notices. 25 (6): 234–245. CiteSeerX 10.1.1.49.3377. doi:10.1145/93548.93574. Archived from the original on 2010-06-12. Retrieved 2017-11-01. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)
Compare++, http://www.coodesoft.com/ Archived 2011-11-29 at the Wayback Machine
SmartDifferencer, http://www.semanticdesigns.com/Products/SmartDifferencer Archived 2009-10-14 at the Wayback Machine
"xaizek/zograscope". GitHub. 26 May 2020. Archived from the original on 21 December 2020. Retrieved 27 June 2020.
DaisyDiff, https://code.google.com/p/daisydiff/ Archived 2015-03-19 at the Wayback Machine
xmldiffpatch, http://msdn.microsoft.com/en-us/library/aa302294.aspx Archived 2009-10-27 at the Wayback Machine
xmldiffmerge, http://www.alphaworks.ibm.com/tech/xmldiffmerge Archived 2009-09-24 at the Wayback Machine
Cheney, Austin. Pretty Diff - Documentation. http://prettydiff.com/documentation.php Archived 2012-07-31 at the Wayback Machine
dontcallmedotcom. "spiff". GitHub. Archived from the original on 2015-03-26. Retrieved 2013-06-16.
Nachbar, Daniel W (1999-12-01). "HP-UX Porting and Archiving". UK. Archived from the original on 2012-09-05. Retrieved 2013-06-13.
"SPIFF 1". 1988-02-02. Archived from the original on 2016-10-02. Retrieved 2013-06-16.
Nachbar, Daniel W (1988-02-02). "Man page". UK. Archived from the original on 2012-09-10. Retrieved 2013-06-16.
Davide (2009-09-28). "stackoverflow". Archived from the original on 2022-02-19. Retrieved 2013-06-16.
Libenzi, Davide. "LibXDiff". SourceForge FreshMeat. Archived from the original on 2020-07-01. Retrieved 2020-06-28.
"algorithm - What's the difference between 'git diff --patience' and 'git diff --histogram'?". Stack Overflow. Archived from the original on 2022-02-19. Retrieved 2020-06-28. This does indeed show that histogram diff slightly beats Myers, while patience is much slower than the others.

wisc.edu (Global: 891^st place; English: 533^rd place)

cs.wisc.edu

Horwitz, Susan (June 1990). "Identifying the semantic and textual differences between two versions of a program". ACM SIGPLAN Notices. 25 (6): 234–245. CiteSeerX 10.1.1.49.3377. doi:10.1145/93548.93574. Archived from the original on 2010-06-12. Retrieved 2017-11-01. {{cite journal}}: Cite uses deprecated parameter |citeseerx= (help)

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Ritchie, Dennis M.; Thompson, Ken (1974-07-01). "The UNIX time-sharing system". Commun. ACM. 17 (7): 365–375. doi:10.1145/361011.361061. ISSN 0001-0782.

Diff (English Wikipedia)

artima.com (Global: low place; English: low place)

arxiv.org (Global: 49th place; English: 31st place)

catb.org (Global: 7,578th place; English: 6,551st place)

code.google.com (Global: 6,691st place; English: 6,208th place)

colordiff.org (Global: low place; English: low place)

connect.org.uk (Global: low place; English: low place)

hpux.connect.org.uk

coodesoft.com (Global: low place; English: low place)

dartmouth.edu (Global: 2,786th place; English: 1,776th place)

cs.dartmouth.edu

doi.org (Global: 2nd place; English: 2nd place)

github.com (Global: 380th place; English: 337th place)

gnu.org (Global: 1,901st place; English: 1,743rd place)

gnu.org

git.savannah.gnu.org

groups.google.com (Global: 2,153rd place; English: 1,445th place)

ibm.com (Global: 1,369th place; English: 968th place)

alphaworks.ibm.com

microsoft.com (Global: 263rd place; English: 259th place)

msdn.microsoft.com

opengroup.org (Global: 6,630th place; English: 5,295th place)

pubs.opengroup.org

prettydiff.com (Global: low place; English: low place)

psu.edu (Global: 299th place; English: 159th place)

citeseerx.ist.psu.edu

semanticdesigns.com (Global: low place; English: low place)

semanticscholar.org (Global: 15th place; English: 8th place)

api.semanticscholar.org

sourceforge.net (Global: 1,842nd place; English: 1,520th place)

freshmeat.sourceforge.net

stackoverflow.com (Global: 9,249th place; English: 6,951st place)

tuhs.org (Global: low place; English: low place)

minnie.tuhs.org

utah.edu (Global: 2,766th place; English: 1,555th place)

math.utah.edu

vimhelp.org (Global: low place; English: low place)

vimways.org (Global: low place; English: low place)

web.archive.org (Global: 1st place; English: 1st place)

wisc.edu (Global: 891st place; English: 533rd place)

cs.wisc.edu

worldcat.org (Global: 4th place; English: 4th place)

search.worldcat.org

arxiv.org (Global: 49^th place; English: 31^st place)

catb.org (Global: 7,578^th place; English: 6,551^st place)

code.google.com (Global: 6,691^st place; English: 6,208^th place)

dartmouth.edu (Global: 2,786^th place; English: 1,776^th place)

doi.org (Global: 2^nd place; English: 2^nd place)

github.com (Global: 380^th place; English: 337^th place)

gnu.org (Global: 1,901^st place; English: 1,743^rd place)

groups.google.com (Global: 2,153^rd place; English: 1,445^th place)

ibm.com (Global: 1,369^th place; English: 968^th place)

microsoft.com (Global: 263^rd place; English: 259^th place)

opengroup.org (Global: 6,630^th place; English: 5,295^th place)

psu.edu (Global: 299^th place; English: 159^th place)

semanticscholar.org (Global: 15^th place; English: 8^th place)

sourceforge.net (Global: 1,842^nd place; English: 1,520^th place)

stackoverflow.com (Global: 9,249^th place; English: 6,951^st place)

utah.edu (Global: 2,766^th place; English: 1,555^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

wisc.edu (Global: 891^st place; English: 533^rd place)

worldcat.org (Global: 4^th place; English: 4^th place)