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jdupes - identify and delete or link duplicate files

jdupes is a program based in fdupes. The main goal of jdupes is identify and taking actions upon duplicate files. In comparison with fdupes, jdupes is heavily modified from and improved.
The biggest reason to use jdupes is raw speed. In testing on various data sets, jdupes is over 7 times faster than fdupes-1.51 on average.
Code in jdupes is written with data loss avoidance as the highest priority. If a choice must be made between being aggressive or careful, the careful way is always chosen.
jdupes includes features that are not found in fdupes. Examples of such features include btrfs block-level deduplication and control over which file is kept when a match set is automatically deleted. jdupes is not afraid of dropping features of low value; a prime example is the -1 switch which outputs all matches in a set on one line, a feature which was found to be useless in real-world tests and therefore thrown out.
jdupes can convert duplicate files in hardlinks or relative softlinks. It is useful in several scenarios, as in Debian packaging, to create relative symlinks to lots of duplicate files (it will substitute rdfind + symlinks commands, used to same purpose, when solving lintian duplicate-files).
Packages build for Linux versions have support to btrfs filesystem.
1.13.1
Ubuntu iconUbuntu 19.10
1.12
Debian iconDebian 10.0
Debian iconDebian 9.0
1.11.1
Ubuntu iconUbuntu 19.04
1.10.2
Ubuntu iconUbuntu 18.10
1.9
Ubuntu iconUbuntu 18.04 LTS
1.8
Ubuntu iconUbuntu 17.10
1.7
Debian iconDebian 9.0
DistributionVersionSincePackageInstalledPackager
Debian iconDebian 10.0 buster/maindeb1.12-1Mar 1044 kiB93 kiB
Debian iconDebian 9.0 stretch/maindeb1.7-2+deb9u1Feb 1632.6 kiB70 kiB
Debian iconDebian 9.0 stretch-backports/maindeb1.12-1~bpo9+1Jul 1044.1 kiB93 kiB
Ubuntu iconUbuntu 17.10 artful/universedeb1.8-12017-11-1031.4 kiB68 kiB
Ubuntu iconUbuntu 18.04 LTS bionic/universedeb1.9-12017-12-0533.4 kiB73 kiB
Ubuntu iconUbuntu 18.10 cosmic/universedeb1.10.2-1Jan 1440.4 kiB84 kiB
Ubuntu iconUbuntu 19.04 disco/universedeb1.11.1-2Jan 1439.7 kiB88 kiB
Ubuntu iconUbuntu 19.10 eoan/universedeb1.13.1-2Jul 0941.7 kiB94 kiB

Manual pages

jdupes(1)

jdupes - finds and performs actions upon duplicate files

Latest updates

Ubuntu 19.10 icon

Ubuntu 19.10 eoan/universe: Version 1.13.1-2 reintroduced

16:56
Ubuntu 19.10 icon

Ubuntu 19.10 eoan/universe: Version 1.13.1-2 removed

14:23
Ubuntu 19.10 icon

Ubuntu 19.10 eoan/universe: Version 1.13.1-2 reintroduced

Yesterday
Ubuntu 19.10 icon

Ubuntu 19.10 eoan/universe: Version 1.13.1-2 removed

Yesterday
Ubuntu 19.10 icon

Ubuntu 19.10 eoan/universe: Version 1.13.1-2 reintroduced

Yesterday
Ubuntu 19.10 icon

Ubuntu 19.10 eoan/universe: Version 1.13.1-2 removed

Yesterday
Debian 9.0 icon

Debian 9.0 stretch-backports/main: Version 1.12-1~bpo9+1 reintroduced

0 - 16:58
Debian 9.0 icon

Debian 9.0 stretch-backports/main: Version 1.12-1~bpo9+1 removed

0 - 10:58
Debian 9.0 icon

Debian 9.0 stretch-backports/main: Updated from 1.10.4-1~bpo9+1 to 1.12-1~bpo9+1

Jul 10
Ubuntu 19.10 icon

Ubuntu 19.10 eoan/universe: Updated from 1.12-1 to 1.13.1-2

Jul 09
Ubuntu 19.10 icon

Ubuntu 19.10 eoan-proposed/universe: Version 1.13.1-2 removed

Jul 09
Ubuntu 19.10 icon

Ubuntu 19.10 eoan-proposed/universe: Version 1.13.1-2 introduced

Jul 09
Debian experimental icon

Debian experimental experimental/main: Version 1.13.1-1 removed

Jul 08
Debian experimental icon

Debian experimental experimental/main: Version 1.13.1-1 introduced

Jun 29
Ubuntu 19.10 icon

Ubuntu 19.10 eoan/universe: Version 1.12-1 reintroduced

Jun 20
Ubuntu 19.10 icon

Ubuntu 19.10 eoan/universe: Version 1.12-1 removed

Jun 20
Ubuntu 19.10 icon

Ubuntu 19.10 eoan/universe: Version 1.12-1 introduced

Jun 17
Debian 10.0 icon

Debian 10.0 buster/main: Updated from 1.11.1-2 to 1.12-1

Mar 10
  • New upstream version 1.12.
  • Using new DH level format. Consequently:
    • debian/compat: removed.
    • debian/control: changed from 'debhelper' to 'debhelper-compat' in Build-Depends field and bumped level to 12.
  • debian/control: bumped Standards-Version to 4.3.0.
  • debian/copyright: updated upstream and packaging copyright years.
Debian 9.0 icon

Debian 9.0 stretch-proposed-updates/main: Version 1.7-2+deb9u1 removed

Feb 16
Debian 9.0 icon

Debian 9.0 stretch/main: Updated from 1.7-2 to 1.7-2+deb9u1

Feb 16
  • debian/patches/20_fix-crash-arm.patch: add to fix a potential crash in ARM. Thanks to Jody Bruchon <>. (Closes: #914078)
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