https://github.com/qos-ch/slf4j

Score: 37.33107534412837

Last synced: about 20 hours ago
JSON representation

Repository metadata:

Simple Logging Facade for Java

Host: GitHub
URL: https://github.com/qos-ch/slf4j
Owner: qos-ch
License: mit
Created: 2009-08-20T16:25:49.000Z (over 16 years ago)
Default Branch: master
Last Pushed: 2025-12-16T20:27:40.000Z (about 2 months ago)
Last Synced: 2026-02-04T23:59:52.257Z (2 days ago)
Language: Java
Homepage: http://www.slf4j.org
Size: 11.7 MB
Stars: 2,480
Watchers: 103
Forks: 1,013
Open Issues: 156
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE.txt
- Security: SECURITY.md
Funding:
- Tidelift: maven/org.slf4j:slf4j-api
- Github: qos-ch

Owner metadata:

Name: QOS.CH (Switzerland)
Login: qos-ch
Email:
Kind: organization
Description:
Website: http://www.qos.ch
Location: Switzerland
Twitter: qos_ch
Company:
Icon url: https://avatars.githubusercontent.com/u/1521407?v=4
Repositories: 16
Last Synced at: 2025-11-21T07:03:03.731Z
Profile URL: https://github.com/qos-ch

GitHub Events

Total

Commit comment event: 1
Create event: 1
Fork event: 37
Issue comment event: 88
Issues event: 24
Pull request event: 13
Pull request review event: 4
Push event: 14
Release event: 1
Watch event: 141
Total: 324

Last Year

Commit comment event: 1
Create event: 1
Fork event: 21
Issue comment event: 39
Issues event: 13
Pull request event: 7
Pull request review event: 1
Push event: 9
Release event: 1
Watch event: 82
Total: 175

Committers metadata

Last synced: 4 days ago

Total Commits: 2,009
Total Committers: 99
Avg Commits per committer: 20.293
Development Distribution Score (DDS): 0.179

Commits in past year: 11
Committers in past year: 1
Avg Commits per committer in past year: 11.0
Development Distribution Score (DDS) in past year: 0.0

Name	Email	Commits
Ceki Gulcu	c**i@q**h	1649
Thorbjorn Ravn Andersen	r**n@r**m	55
John E. Conlon	j**n@v**m	27
Jean-Noel Charpin	j**n@q**h	25
Sebastien Pennec	s**n@q**h	24
nordligulv	n**v@g**m	21
Wessel van Norel	w**l@d**m	20
Jeremy Landis	j**s@h**m	18
Ralph Goers	r**s@a**g	13
Nicolai Parlog	n**a@c**g	7
Hannes Wellmann	w**1@g**t	7
Christian Trutz	c**z@b**e	5
Chetan Mehrotra	c**m@a**m	5
Raphael Jaques	r**l@q**h	4
Alexander Dorokhine	a**e@g**m	4
Hervé Boutemy	h**y@a**g	3
Luke Cwik	l**k@g**m	3
Matt Bishop	m**t@t**g	3
Otávio Garcia	o**o@o**r	3
barney2k7	b**7@g**m	3
Dimitrios Liapis	d**i@g**m	3
Craig P. Motlin	c**n@g**m	3
Brett Randall	j**t@g**m	3
mbishop	m**p@e**m	3
Heiko Seeberger	h**r@g**m	3
Andrey Korzhevskiy	k**y@c**u	3
nicolas-f	g**b@n**r	2
William Delanoue	w**e@d**t	2
Sebastian Schuberth	s**h@g**m	2
Sebastian Kürten	s**n@t**e	2
and 69 more...

Issue and Pull Request metadata

Last synced: 7 days ago

Total issues: 69
Total pull requests: 363
Average time to close issues: about 1 month
Average time to close pull requests: about 1 year
Total issue authors: 65
Total pull request authors: 247
Average comments per issue: 2.64
Average comments per pull request: 2.56
Merged pull request: 127
Bot issues: 0
Bot pull requests: 0

Past year issues: 14
Past year pull requests: 8
Past year average time to close issues: 5 days
Past year average time to close pull requests: about 1 hour
Past year issue authors: 13
Past year pull request authors: 5
Past year average comments per issue: 3.5
Past year average comments per pull request: 0.38
Past year merged pull request: 0
Past year bot issues: 0
Past year bot pull requests: 0

More stats: https://issues.ecosyste.ms/repositories/lookup?url=https://github.com/qos-ch/slf4j

Top Issue Authors

garretwilson (3)
vitalijr2 (2)
ppkarwasz (2)
robdatasembly (1)
solonovamax (1)
axelfontaine (1)
alexanderjastram (1)
metametadata (1)
hw207165 (1)
FabianoLothor (1)
sesm (1)
jonasschmittsag (1)
albutzbdr (1)
cushon (1)
peterhalicky (1)

Top Pull Request Authors

hazendaz (12)
KengoTODA (8)
HannesWell (7)
ppkarwasz (6)
adorokhine (6)
mattbishop (5)
korzha (5)
spoonjpb (5)
antoniosanct (4)
garcia-jj (4)
delgurth (4)
motlin (4)
radio-rogal (4)
barney2k7 (3)
karl82 (3)

Top Issue Labels

DONE (8)
NOT_A_BUG (4)
IN_PROGRESS (3)
WILL_NOT_FIX (2)
fixed (1)
ALTERNATIVE_EXISTS (1)
BUG (1)
INCOMPLETE (1)

Top Pull Request Labels

NOT_A_BUG (2)
WILL_NOT_FIX (2)

Package metadata

Total packages: 24
Total downloads: unknown
Total docker downloads: 62,530,607,757
Total dependent packages: 100,378 (may contain duplicates)
Total dependent repositories: 750,202 (may contain duplicates)
Total versions: 1,777
Total advisories: 1

repo1.maven.org: org.slf4j:slf4j-simple

SLF4J Simple Provider

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-simple/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T02:34:51.215Z (3 days ago)
Versions: 115
Dependent Packages: 12,084
Dependent Repositories: 76,539
Docker Downloads: 4,282,647,751
Rankings:
- Dependent packages count: 0.004%
- Dependent repos count: 0.015%
- Docker downloads count: 0.038%
- Average: 2.523%
- Forks count: 5.27%
- Stargazers count: 7.286%

repo1.maven.org: org.slf4j:slf4j-jdk14

SLF4J JDK14 Provider

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-jdk14/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T02:27:43.572Z (3 days ago)
Versions: 115
Dependent Packages: 2,230
Dependent Repositories: 18,990
Docker Downloads: 6,336,374,886
Rankings:
- Docker downloads count: 0.025%
- Dependent packages count: 0.032%
- Dependent repos count: 0.048%
- Average: 2.532%
- Forks count: 5.27%
- Stargazers count: 7.286%

repo1.maven.org: org.slf4j:slf4j-nop

SLF4J NOP Provider

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-nop/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T02:33:21.664Z (3 days ago)
Versions: 115
Dependent Packages: 1,553
Dependent Repositories: 10,846
Docker Downloads: 3,550,099,371
Rankings:
- Docker downloads count: 0.039%
- Dependent packages count: 0.047%
- Dependent repos count: 0.076%
- Average: 2.543%
- Forks count: 5.27%
- Stargazers count: 7.286%

repo1.maven.org: org.slf4j:slf4j-api

The slf4j API

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-api/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T02:33:10.895Z (3 days ago)
Versions: 106
Dependent Packages: 54,638
Dependent Repositories: 309,657
Docker Downloads: 20,542,693,866
Rankings:
- Docker downloads count: 0.0%
- Dependent packages count: 0.0%
- Dependent repos count: 0.001%
- Average: 2.569%
- Forks count: 5.472%
- Stargazers count: 7.371%

repo1.maven.org: org.slf4j:jcl-over-slf4j

Jakarta/Apache commons logging 1.2 implemented over SLF4J

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/jcl-over-slf4j/
Licenses: Apache License, Version 2.0
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T02:27:23.091Z (3 days ago)
Versions: 93
Dependent Packages: 7,757
Dependent Repositories: 97,674
Docker Downloads: 11,577,497,489
Rankings:
- Docker downloads count: 0.003%
- Dependent packages count: 0.008%
- Dependent repos count: 0.01%
- Average: 2.573%
- Forks count: 5.472%
- Stargazers count: 7.371%

repo1.maven.org: org.slf4j:jul-to-slf4j

JUL to SLF4J bridge

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/jul-to-slf4j/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T15:15:53.331Z (3 days ago)
Versions: 93
Dependent Packages: 3,623
Dependent Repositories: 24,649
Docker Downloads: 5,095,986,317
Rankings:
- Docker downloads count: 0.014%
- Dependent packages count: 0.018%
- Dependent repos count: 0.038%
- Average: 2.583%
- Forks count: 5.472%
- Stargazers count: 7.371%

repo1.maven.org: org.slf4j:log4j-over-slf4j

Log4j implemented over SLF4J

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/log4j-over-slf4j/
Licenses: Apache Software Licenses
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T02:33:05.697Z (3 days ago)
Versions: 100
Dependent Packages: 3,242
Dependent Repositories: 20,924
Docker Downloads: 7,334,430,005
Rankings:
- Docker downloads count: 0.015%
- Dependent packages count: 0.021%
- Dependent repos count: 0.043%
- Average: 2.584%
- Forks count: 5.472%
- Stargazers count: 7.371%

repo1.maven.org: org.slf4j:slf4j-log4j12

SLF4J LOG4J-12 relocated to slf4j-reload4j

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-log4j12/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T15:15:53.467Z (3 days ago)
Versions: 113
Dependent Packages: 13,700
Dependent Repositories: 182,086
Docker Downloads: 1,100,225,351
Rankings:
- Dependent packages count: 0.003%
- Dependent repos count: 0.004%
- Docker downloads count: 0.102%
- Average: 2.59%
- Forks count: 5.472%
- Stargazers count: 7.371%

repo1.maven.org: org.slf4j:slf4j-ext

Extensions to the SLF4J API

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-ext/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T15:15:45.126Z (3 days ago)
Versions: 92
Dependent Packages: 632
Dependent Repositories: 3,405
Docker Downloads: 1,005,595,124
Rankings:
- Dependent packages count: 0.12%
- Docker downloads count: 0.132%
- Dependent repos count: 0.172%
- Average: 2.653%
- Forks count: 5.472%
- Stargazers count: 7.371%
Advisories:
- Improper Access Control in SLF4J

repo1.maven.org: org.slf4j:slf4j-reload4j

SLF4J Reload4j Provider

Homepage: http://reload4j.qos.ch
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-reload4j/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T02:30:55.159Z (3 days ago)
Versions: 28
Dependent Packages: 366
Dependent Repositories: 762
Docker Downloads: 1,314,197,153
Rankings:
- Docker downloads count: 0.097%
- Dependent packages count: 0.26%
- Dependent repos count: 0.459%
- Average: 2.674%
- Forks count: 5.27%
- Stargazers count: 7.286%

repo1.maven.org: org.slf4j:slf4j-jcl

SLF4J JCL Binding

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-jcl/
Licenses: MIT License
Latest release: 1.7.36 (published almost 4 years ago)
Last Synced: 2026-02-04T15:15:53.224Z (3 days ago)
Versions: 74
Dependent Packages: 349
Dependent Repositories: 2,857
Docker Downloads: 185,630,498
Rankings:
- Dependent repos count: 0.192%
- Dependent packages count: 0.229%
- Docker downloads count: 0.368%
- Average: 2.726%
- Forks count: 5.472%
- Stargazers count: 7.371%

repo1.maven.org: org.slf4j:slf4j-android

SLF4J Android Binding

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-android/
Licenses: MIT License
Latest release: 1.7.36 (published almost 4 years ago)
Last Synced: 2026-02-04T02:31:09.321Z (3 days ago)
Versions: 31
Dependent Packages: 43
Dependent Repositories: 1,475
Docker Downloads: 909
Rankings:
- Dependent repos count: 0.302%
- Dependent packages count: 1.526%
- Average: 3.723%
- Docker downloads count: 3.946%
- Forks count: 5.472%
- Stargazers count: 7.371%

repo1.maven.org: org.slf4j:osgi-over-slf4j

OSGi LogService implementation over SLF4J

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/osgi-over-slf4j/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T02:28:24.241Z (3 days ago)
Versions: 71
Dependent Packages: 36
Dependent Repositories: 82
Docker Downloads: 1,279,297
Rankings:
- Dependent packages count: 1.785%
- Docker downloads count: 1.851%
- Dependent repos count: 2.182%
- Average: 3.732%
- Forks count: 5.472%
- Stargazers count: 7.371%

repo1.maven.org: org.slf4j:slf4j-parent

SLF4J project parent pom.xml file

Homepage: http://www.slf4j.org/slf4j-parent
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-parent/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T02:31:57.052Z (3 days ago)
Versions: 105
Dependent Packages: 65
Dependent Repositories: 79
Rankings:
- Dependent packages count: 1.593%
- Dependent repos count: 2.24%
- Average: 4.097%
- Forks count: 5.27%
- Stargazers count: 7.286%

repo1.maven.org: com.vaadin.external.slf4j:vaadin-slf4j-jdk14

Slf4j API + JDK14 binding rebased to com.vaadin.external

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/com.vaadin.external.slf4j/vaadin-slf4j-jdk14/
Licenses: The MIT License
Latest release: 1.6.1 (published over 12 years ago)
Last Synced: 2026-02-04T02:25:53.474Z (3 days ago)
Versions: 1
Dependent Packages: 17
Dependent Repositories: 13
Docker Downloads: 2,706,044
Rankings:
- Docker downloads count: 1.547%
- Dependent packages count: 3.654%
- Average: 4.954%
- Forks count: 5.468%
- Dependent repos count: 6.723%
- Stargazers count: 7.379%

repo1.maven.org: org.slf4j:integration

SLF4J integration tests

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/integration/
Licenses: MIT License
Latest release: 1.7.36 (published almost 4 years ago)
Last Synced: 2026-02-04T02:34:53.452Z (3 days ago)
Versions: 63
Dependent Packages: 11
Dependent Repositories: 112
Docker Downloads: 83
Rankings:
- Dependent repos count: 1.774%
- Average: 5.241%
- Forks count: 5.472%
- Dependent packages count: 5.472%
- Docker downloads count: 6.117%
- Stargazers count: 7.371%

proxy.golang.org: github.com/qos-ch/slf4j

Homepage:
Documentation: https://pkg.go.dev/github.com/qos-ch/slf4j#section-documentation
Licenses: mit
Latest release: v2.0.14+incompatible (published over 1 year ago)
Last Synced: 2026-02-04T02:30:43.625Z (3 days ago)
Versions: 6
Dependent Packages: 0
Dependent Repositories: 0
Rankings:
- Dependent packages count: 5.442%
- Average: 5.624%
- Dependent repos count: 5.807%

repo1.maven.org: org.slf4j:slf4j-site

SLF4J Site

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-site/
Licenses: MIT License
Latest release: 1.7.28 (published over 6 years ago)
Last Synced: 2026-02-04T02:26:44.393Z (3 days ago)
Versions: 69
Dependent Packages: 3
Dependent Repositories: 15
Docker Downloads: 13,217,561
Rankings:
- Docker downloads count: 0.967%
- Forks count: 5.472%
- Dependent repos count: 6.221%
- Stargazers count: 7.371%
- Average: 7.472%
- Dependent packages count: 17.328%

repo1.maven.org: org.slf4j:slf4j-jdk-platform-logging

Integrated SLF4J with the Platform Logging API added by JEP 264 in Java 9

Homepage: https://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-jdk-platform-logging/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T02:25:56.690Z (3 days ago)
Versions: 26
Dependent Packages: 8
Dependent Repositories: 7
Docker Downloads: 360
Rankings:
- Forks count: 5.472%
- Stargazers count: 7.371%
- Average: 7.573%
- Dependent packages count: 8.26%
- Dependent repos count: 9.19%

repo1.maven.org: com.guicedee.services:sl4j

The Parent Holder for the Guiced EE JMPS System

Homepage: https://github.com/qos-ch/slf4j
Documentation: https://appdoc.app/artifact/com.guicedee.services/sl4j/
Licenses: CDDL + GPLv2 with classpath exception
Latest release: 1.0.13.5-jre12 (published over 5 years ago)
Last Synced: 2026-02-04T02:29:38.346Z (3 days ago)
Versions: 76
Dependent Packages: 5
Dependent Repositories: 15
Rankings:
- Forks count: 5.472%
- Dependent repos count: 6.221%
- Stargazers count: 7.371%
- Average: 7.596%
- Dependent packages count: 11.32%

repo1.maven.org: com.guicedee.services:slf4j

The core maven build properties

Homepage: https://github.com/qos-ch/slf4j
Documentation: https://appdoc.app/artifact/com.guicedee.services/slf4j/
Licenses: CDDL + GPLv2 with classpath exception
Latest release: 1.2.2.1-jre17 (published almost 4 years ago)
Last Synced: 2026-02-04T02:26:03.312Z (3 days ago)
Versions: 173
Dependent Packages: 16
Dependent Repositories: 3
Rankings:
- Dependent packages count: 3.856%
- Forks count: 5.472%
- Stargazers count: 7.371%
- Average: 7.597%
- Dependent repos count: 13.689%

repo1.maven.org: org.slf4j:slf4j-migrator

SLF4J Migrator

Homepage: http://www.slf4j.org/slf4j-parent/slf4j-migrator
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-migrator/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T02:33:10.786Z (3 days ago)
Versions: 90
Dependent Packages: 0
Dependent Repositories: 12
Docker Downloads: 188,025,692
Rankings:
- Docker downloads count: 0.367%
- Forks count: 5.472%
- Dependent repos count: 6.986%
- Stargazers count: 7.371%
- Average: 14.014%
- Dependent packages count: 49.873%

repo1.maven.org: com.guicedee.services:logback-core

The core maven build properties

Homepage: https://github.com/qos-ch/slf4j
Documentation: https://appdoc.app/artifact/com.guicedee.services/logback-core/
Licenses: GPL 3
Latest release: 1.2.2.1-jre17 (published almost 4 years ago)
Last Synced: 2026-02-04T02:28:13.298Z (3 days ago)
Versions: 10
Dependent Packages: 0
Dependent Repositories: 0
Rankings:
- Forks count: 4.345%
- Stargazers count: 5.96%
- Average: 22.786%
- Dependent repos count: 31.98%
- Dependent packages count: 48.86%

repo1.maven.org: org.slf4j:slf4j-bom

SLF4J project BOM

Homepage: http://www.slf4j.org
Documentation: https://appdoc.app/artifact/org.slf4j/slf4j-bom/
Licenses: MIT License
Latest release: 2.0.17 (published 12 months ago)
Last Synced: 2026-02-04T02:31:15.725Z (3 days ago)
Versions: 12
Dependent Packages: 0
Dependent Repositories: 0
Rankings:
- Dependent repos count: 35.172%
- Average: 42.729%
- Dependent packages count: 50.286%

Dependencies

.github/workflows/main.yml actions

actions/checkout v3 composite
actions/setup-java v3 composite

integration/pom.xml maven

org.apache.felix:org.apache.felix.main 5.6.1
org.slf4j:slf4j-api

jcl-over-slf4j/pom.xml maven

org.slf4j:slf4j-api
org.slf4j:slf4j-jdk14 test

jul-to-slf4j/pom.xml maven

org.slf4j:slf4j-api
org.slf4j:slf4j-reload4j ${project.version} test

log4j-over-slf4j/pom.xml maven

org.slf4j:slf4j-api
org.slf4j:slf4j-jdk14 test

osgi-over-slf4j/pom.xml maven

org.osgi:org.osgi.core 4.2.0 provided
org.osgi:org.osgi.enterprise 4.2.0 provided
org.slf4j:slf4j-simple ${project.version} provided

pom.xml maven

ch.qos.cal10n:cal10n-api 0.8.1
ch.qos.reload4j:reload4j 1.2.22
org.slf4j:slf4j-api 2.0.7-SNAPSHOT
org.slf4j:slf4j-jdk14 2.0.7-SNAPSHOT
org.slf4j:slf4j-simple 2.0.7-SNAPSHOT
junit:junit 4.13.1 test

slf4j-ext/pom.xml maven

ch.qos.cal10n:cal10n-api
javassist:javassist 3.4.GA
org.slf4j:slf4j-api
org.slf4j:slf4j-reload4j ${project.version} test

slf4j-jdk-platform-logging/pom.xml maven

org.slf4j:slf4j-api
org.slf4j:slf4j-simple test

slf4j-jdk14/pom.xml maven

org.slf4j:slf4j-api
org.slf4j:slf4j-api 2.0.7-SNAPSHOT test

slf4j-nop/pom.xml maven

org.slf4j:slf4j-api

slf4j-reload4j/pom.xml maven

ch.qos.reload4j:reload4j
org.slf4j:slf4j-api
org.slf4j:slf4j-api ${project.version} test

slf4j-simple/pom.xml maven

org.slf4j:slf4j-api
org.slf4j:slf4j-api 2.0.7-SNAPSHOT test

parent/pom.xml maven

junit:junit 4.13.1 test

slf4j-api/pom.xml maven

slf4j-log4j12/pom.xml maven

slf4j-migrator/pom.xml maven