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apache/kafka

Star momentum, maintenance concentration, contributor health, and codebase change — one report built from public repository data.

Open on GitHub
Current stars
33,726
Activity since
2011
Latest activity
Sep 2026

Public star activity

Last 30 days
+13
Last 90 days
+38
Actions / day
6.2
Public star actions
stars from August 16, 2011 to September 15, 2026, peaking at 34,048.34k STARS15 YR 1 MO34kSEP 2026AUG 2011

34,048 stars on September 15, 2026.

stars by date
Datestars
August 16, 20111
January 2, 201227
February 22, 201241
November 2, 201273
January 22, 2013104
February 13, 2013124
March 27, 2013158
May 21, 2013191
June 7, 2013207
August 12, 2013241
September 20, 2013284
October 11, 2013301
November 20, 2013340
December 24, 2013378
January 13, 2014403
February 11, 2014442
March 22, 2014487
April 11, 2014512
May 12, 2014548
June 19, 2014587
July 3, 2014614
July 30, 2014662
August 29, 2014723
September 12, 2014747
October 12, 2014797
November 8, 2014874
November 19, 2014913
December 19, 2014983
January 21, 20151,046
February 2, 20151,083
March 1, 20151,166
March 25, 20151,257
April 6, 20151,303
May 3, 20151,398
May 28, 20151,498
June 9, 20151,548
July 3, 20151,638
July 27, 20151,720
August 8, 20151,771
August 31, 20151,867
September 23, 20151,975
October 6, 20152,032
October 29, 20152,162
November 21, 20152,281
December 3, 20152,356
December 26, 20152,465
January 20, 20162,592
January 31, 20162,646
February 25, 20162,758
March 20, 20162,899
March 31, 20162,971
April 24, 20163,092
May 17, 20163,213
May 28, 20163,271
June 21, 20163,406
July 15, 20163,571
July 27, 20163,658
August 19, 20163,781
September 11, 20163,902
September 23, 20163,982
October 17, 20164,104
November 9, 20164,255
December 2, 20164,416
December 15, 20164,499
January 8, 20174,626
February 1, 20174,749
February 12, 20174,812
March 7, 20174,964
April 1, 20175,165
April 12, 20175,253
May 6, 20175,420
May 29, 20175,580
June 9, 20175,671
July 3, 20175,832
July 26, 20176,027
August 7, 20176,118
August 30, 20176,366
September 22, 20176,560
October 4, 20176,653
October 27, 20176,844
November 19, 20177,105
December 1, 20177,236
December 24, 20177,419
January 16, 20187,596
January 28, 20187,722
February 20, 20187,928
March 15, 20188,179
March 27, 20188,300
April 20, 20188,536
May 13, 20188,779
May 25, 20188,917
June 17, 20189,135
July 11, 20189,387
July 22, 20189,477
August 14, 20189,772
September 7, 201810,020
September 18, 201810,120
October 12, 201810,308
November 4, 201810,507
November 15, 201810,619
December 9, 201810,883
January 1, 201911,137
January 13, 201911,264
February 5, 201911,521
February 28, 201911,724
March 12, 201911,872
April 4, 201912,191
April 27, 201912,491
May 9, 201912,655
June 1, 201912,966
June 24, 201913,215
July 6, 201913,385
July 29, 201913,785
August 21, 201914,080
September 2, 201914,207
September 25, 201914,464
October 19, 201914,700
October 30, 201914,805
November 22, 201915,057
December 16, 201915,312
December 27, 201915,441
January 20, 202015,676
February 12, 202015,803
February 23, 202015,885
March 18, 202016,142
April 10, 202016,377
April 22, 202016,541
May 15, 202016,805
June 7, 202017,063
June 19, 202017,223
July 12, 202017,440
August 4, 202017,687
August 17, 202017,816
September 11, 202018,060
October 4, 202018,259
October 16, 202018,348
November 8, 202018,541
December 1, 202018,757
December 13, 202018,885
January 5, 202119,098
January 29, 202119,311
February 9, 202119,415
March 4, 202119,610
March 29, 202119,817
April 9, 202119,945
May 3, 202120,227
May 29, 202120,458
June 9, 202120,567
July 3, 202120,788
July 26, 202120,993
August 7, 202121,101
September 1, 202121,303
September 24, 202121,509
October 7, 202121,615
November 6, 202121,730
November 29, 202121,959
December 11, 202122,052
January 3, 202222,300
January 26, 202222,553
February 7, 202222,635
March 2, 202222,853
March 25, 202223,106
April 6, 202223,216
April 29, 202223,446
May 22, 202223,638
June 3, 202223,740
June 26, 202223,968
July 20, 202224,204
July 31, 202224,308
August 23, 202224,601
September 16, 202224,778
September 27, 202224,894
October 21, 202225,106
November 13, 202225,288
November 24, 202225,363
December 18, 202225,512
January 10, 202325,684
January 22, 202325,777
February 14, 202325,969
March 9, 202326,198
April 1, 202326,376
April 13, 202326,506
May 6, 202326,722
May 29, 202326,930
June 10, 202327,018
July 3, 202327,205
July 27, 202327,423
August 7, 202327,509
August 30, 202327,696
September 23, 202327,883
October 4, 202327,957
October 28, 202328,142
November 21, 202328,329
December 2, 202328,398
December 26, 202328,569
January 18, 202428,735
January 30, 202428,843
February 22, 202429,016
March 16, 202429,191
March 28, 202429,293
April 20, 202429,470
May 13, 202429,682
May 25, 202429,783
June 17, 202429,950
July 10, 202430,161
July 22, 202430,292
August 14, 202430,464
September 6, 202430,666
September 18, 202430,774
October 11, 202430,988
November 4, 202431,198
November 15, 202431,298
December 8, 202431,484
January 1, 202531,665
January 12, 202531,747
February 5, 202531,940
February 28, 202532,122
March 11, 202532,216
April 4, 202532,432
April 27, 202532,614
May 9, 202532,685
June 1, 202532,846
June 24, 202532,945
July 6, 202533,005
July 29, 202533,130
August 21, 202533,223
September 3, 202533,287
September 26, 202533,394
October 27, 202533,470
November 9, 202533,532
December 3, 202533,617
December 27, 202533,703
January 9, 202633,737
February 3, 202633,799
February 28, 202633,863
March 11, 202633,898
April 9, 202633,948
May 13, 202633,995
June 1, 202634,010
September 15, 202634,048

The last 90 days run behind its lifetime average, which is ordinary for a mature project.

Observed activity milestones: 100 around Jan 20131k around Jan 201510k around Sep 2018

The commit history reads apache/kafka a second time

methodology

Fix-labelled changes, file change frequency, ownership concentration and maintenance cadence, each computed from this repository's analyzed commit window. None of them is derived from stars, which is why they are allowed to disagree with the curve above.

Fix-labelled changes
Fix-labelled changes for apache/kafka
File change frequency
File change frequency for apache/kafka
Bus factor
Bus factor for apache/kafka
Maintenance pulse
Maintenance pulse for apache/kafka
Contributors
Contributors for apache/kafka
Language activity
Language activity for apache/kafka
Commit activity
Commit activity for apache/kafka
Recent TODO/FIXME movement
Recent TODO/FIXME movement for apache/kafka

Attention is not adoption.

Stars against usage

No published package was detected for this repository, so there is nothing to lay over star growth.

Earned badges

badge studio

Maintenance, ownership and star-momentum signals, computed from the same commit and star history and embeddable as static images.

Reading badge evidence for apache/kafka.

Notes on apache/kafka

How many stars does apache/kafka have?
GitHub currently reports 33,726 stars for apache/kafka. The chart itself is rebuilt from historical star data, which records star actions and not unstars, so it reads as an attention signal rather than a net star count.
What does recent star activity look like for kafka?
gitdebt observed about 38 public star actions for apache/kafka over the latest 90 days of archive coverage (about 13 in the latest 30). This is an approximate attention signal, not a net-star count, because unstars are not present. That's below its lifetime average activity pace, which is common for mature projects.
Is kafka still active?
Public archive data shows about 13 star actions for apache/kafka in the latest 30 days of coverage. For repository activity, use the commit heatmap, commit trend, and contributor charts on this page.
When was kafka created?
apache/kafka was created on August 15, 2011. The first public star activity observed for apache/kafka is from Aug 2011.

Read kafka against a neighbour

comparison builder
Compare with any repository

apache/kafka is featured in Message queues & streaming compared — the whole category on one drawing.

Put this drawing in your README

markdown for agents

The block below publishes the chart with its source and coverage date stated beside it — the same three facts the title block above shows, as text a reader can check. The prompt underneath hands a coding agent the badges and repo-health charts as well.

README.md · apache/kafka star history
<a href="https://gitdebt.com/apache/kafka?ref=readme">
  <picture>
    <source media="(prefers-color-scheme: dark)" srcset="https://api.gitdebt.com/api/repos/apache/kafka/chart.svg?theme=dark" />
    <img alt="apache/kafka star history" src="https://api.gitdebt.com/api/repos/apache/kafka/chart.svg?theme=light" />
  </picture>
</a>

<sub>Star history source: Historical star data · Covers through September 15, 2026 · Still updating — <a href="https://gitdebt.com/apache/kafka?ref=readme">gitdebt</a></sub>

Light and dark variants, alt text, and one provenance line. Provenance is text in your README, never baked into the image URL, so the chart stays cacheable.

Paste it into Claude Code, Cursor, Codex, or any coding agent with your checkout open. It carries the measured numbers, the exact snippets, and the rules — including replacing an existing star-history widget in place rather than stacking a second chart under it.