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Python data tools: star history compared

Most starred

50k

pandas-dev/pandas

NumPy and pandas are the bedrock nearly every data stack is built on, which makes their long, steady star curves a useful baseline: this is what indispensable looks like. Polars is the disruption story — a Rust-core DataFrame library whose growth since 2022 tracks the whole ecosystem's hunger for speed. Arrow and Dask fill in the picture at the memory-format and distributed ends.

Ranked by current GitHub stars · growth = stars gained in the trailing 90 days · data updated Sep 2026

Python data tools — star history
52k STARS15 YR 7 MOpandas-dev/pandas52kpola-rs/polars35knumpy/numpy34kapache/arrow17kdask/dask14k

pandas-dev/pandas: 51,817 stars on September 15, 2026. pola-rs/polars: 35,433 stars on September 16, 2026. numpy/numpy: 33,999 stars on September 13, 2026. apache/arrow: 16,539 stars on September 13, 2026. dask/dask: 14,211 stars on September 15, 2026.

Star history for pandas-dev/pandas
DateStars
February 20, 20111
September 20, 2011119
January 6, 2012242
October 11, 2012459
December 23, 2012660
March 4, 2013853
May 9, 20131088
July 19, 20131289
September 28, 20131576
December 3, 20131901
February 23, 20142233
April 30, 20142489
July 7, 20142754
September 11, 20142974
November 16, 20143267
January 21, 20153597
March 26, 20153924
May 29, 20154212
August 1, 20154528
October 4, 20154873
December 7, 20155277
February 12, 20165605
April 16, 20166052
June 19, 20166510
August 21, 20166947
October 24, 20167401
December 27, 20167855
March 1, 20178936
May 4, 20179808
July 6, 201710543
September 21, 201711429
November 24, 201712391
January 27, 201813344
March 31, 201814407
June 4, 201815285
August 7, 201816184
October 10, 201817114
December 13, 201818101
February 14, 201918928
April 19, 201920018
June 22, 201921095
August 25, 201922140
October 27, 201923276
December 30, 201924266
March 3, 202025384
May 6, 202026523
July 9, 202027584
September 11, 202028492
November 14, 202029379
January 17, 202130374
April 4, 202131649
June 9, 202132446
August 12, 202133241
October 18, 202133923
December 26, 202134705
February 28, 202235630
May 2, 202236603
July 5, 202237352
September 7, 202238151
November 10, 202238993
January 13, 202339693
March 17, 202340566
May 20, 202341763
July 23, 202342516
September 25, 202343345
November 28, 202344117
January 30, 202444822
April 3, 202445667
June 6, 202446352
August 9, 202447124
October 24, 202447973
December 27, 202448612
March 1, 202549317
May 4, 202549969
July 7, 202550427
September 9, 202550878
November 19, 202551176
January 24, 202651446
April 4, 202651667
September 15, 202651817
Star history for pola-rs/polars
DateStars
June 17, 20201
August 7, 2020159
September 21, 2020228
October 24, 2020294
November 23, 2020410
December 22, 2020538
January 19, 2021626
February 21, 2021680
March 20, 20211239
April 15, 20211419
May 19, 20211634
June 14, 20211784
July 11, 20211919
August 6, 20212037
September 6, 20212196
October 2, 20212504
November 6, 20212637
December 2, 20212974
December 28, 20213695
January 24, 20224125
February 19, 20224426
March 17, 20224729
April 12, 20224967
May 8, 20225461
June 3, 20225928
June 30, 20226281
July 26, 20226858
August 21, 20227208
September 16, 20227575
October 12, 20228215
November 13, 20228801
December 9, 20229269
January 4, 202311123
January 30, 202312700
February 25, 202313908
March 23, 202315003
April 18, 202315873
May 15, 202316461
June 10, 202317068
July 6, 202317698
August 1, 202318255
August 27, 202319108
September 22, 202319695
October 19, 202320296
November 14, 202320867
December 10, 202321429
January 5, 202422085
January 31, 202423262
February 26, 202423816
March 23, 202424584
April 24, 202425464
May 20, 202425984
June 15, 202426505
July 11, 202427315
August 6, 202427820
September 2, 202428398
September 28, 202428902
October 24, 202429393
November 19, 202429882
December 15, 202430354
January 10, 202530791
February 6, 202531227
March 4, 202531675
March 30, 202532193
April 25, 202532729
May 21, 202533154
June 16, 202533360
July 12, 202533602
August 8, 202533886
September 3, 202534166
October 4, 202534401
November 5, 202534542
December 1, 202534700
December 28, 202534860
January 23, 202635027
February 18, 202635150
March 17, 202635234
April 17, 202635329
May 23, 202635389
September 16, 202635433
Star history for numpy/numpy
DateStars
February 13, 20111
July 17, 201169
November 9, 2011152
March 2, 2012236
December 18, 2012333
March 13, 2013444
June 13, 2013566
September 7, 2013683
November 29, 2013816
February 21, 2014948
May 20, 20141111
August 11, 20141258
October 20, 20141387
January 3, 20151518
March 7, 20151683
May 13, 20151831
July 21, 20151983
September 28, 20152156
December 3, 20152347
February 5, 20162590
April 9, 20162839
June 13, 20163071
August 13, 20163321
October 14, 20163545
December 16, 20163820
February 17, 20174103
April 19, 20174477
June 20, 20174825
August 20, 20175188
October 20, 20175673
January 1, 20186491
March 4, 20187058
May 5, 20187586
July 5, 20188083
September 4, 20188570
November 5, 20189091
January 5, 20199641
March 7, 201910401
May 7, 201911119
July 7, 201911855
September 7, 201912481
November 7, 201913049
January 7, 202013593
March 8, 202014093
May 8, 202014747
July 9, 202015440
September 9, 202016140
November 9, 202016768
January 9, 202117441
March 13, 202118126
May 28, 202118897
July 28, 202119493
September 30, 202120098
December 8, 202120647
February 7, 202221302
April 9, 202221893
June 9, 202222512
August 10, 202223045
October 10, 202223631
December 10, 202224181
February 9, 202324747
April 11, 202325354
June 12, 202325972
August 12, 202326498
October 12, 202327070
December 12, 202327617
February 11, 202428205
April 13, 202428866
June 13, 202429475
August 13, 202430141
October 26, 202430852
December 26, 202431431
February 25, 202532006
April 27, 202532534
June 27, 202532898
August 28, 202533224
November 4, 202533490
January 10, 202633703
March 19, 202633868
September 13, 202633999
Star history for apache/arrow
DateStars
February 17, 201665
April 3, 2016499
May 22, 2016582
August 9, 2016653
November 8, 2016720
January 18, 2017793
March 15, 2017873
May 10, 2017959
July 12, 20171041
September 8, 20171156
November 3, 20171403
December 21, 20171526
February 7, 20181675
March 25, 20181826
May 8, 20182016
June 23, 20182162
August 8, 20182346
September 22, 20182530
November 6, 20182693
December 20, 20183004
February 2, 20193214
March 17, 20193540
April 29, 20193826
June 11, 20194113
July 24, 20194331
September 4, 20194555
October 18, 20194751
December 1, 20194938
January 15, 20205106
February 28, 20205292
April 22, 20205525
June 4, 20205749
July 17, 20205957
September 1, 20206329
October 13, 20206548
November 26, 20206888
January 8, 20217129
February 20, 20217515
April 4, 20217970
May 19, 20218229
July 1, 20218415
August 12, 20218592
September 30, 20218768
November 19, 20218934
December 31, 20219164
February 12, 20229398
March 27, 20229620
May 8, 20229808
June 19, 202210016
August 1, 202210267
September 21, 202210598
November 4, 202210960
December 16, 202211158
January 28, 202311384
March 13, 202311680
April 24, 202311968
June 5, 202312189
July 19, 202312406
August 30, 202312749
October 11, 202312974
November 23, 202313169
January 5, 202413367
February 18, 202413553
April 2, 202413785
May 15, 202414027
June 26, 202414246
August 8, 202414462
September 20, 202414735
November 1, 202414954
December 13, 202415176
February 2, 202515410
March 17, 202515596
April 30, 202515791
June 15, 202515990
July 30, 202516129
September 15, 202516228
November 15, 202516331
January 4, 202616405
March 4, 202616481
September 13, 202616539
Star history for dask/dask
DateStars
January 6, 20151
June 1, 201560
July 29, 2015243
September 29, 2015361
December 3, 2015453
February 16, 2016579
April 10, 2016664
June 10, 2016763
August 9, 2016877
September 29, 20161007
December 3, 20161157
January 24, 20171286
March 11, 20171438
April 30, 20171561
June 22, 20171722
August 7, 20171882
September 22, 20172012
November 8, 20172163
December 26, 20172348
February 12, 20182524
March 31, 20182754
May 18, 20182935
July 4, 20183162
August 22, 20183373
October 6, 20183572
November 24, 20183793
January 10, 20194044
February 24, 20194281
April 11, 20194613
May 26, 20194983
July 20, 20195465
September 3, 20195699
October 18, 20195923
December 5, 20196184
January 19, 20206411
March 5, 20206644
April 19, 20206839
June 3, 20207082
July 20, 20207278
September 4, 20207503
October 20, 20207737
December 4, 20207967
January 19, 20218186
March 6, 20218449
April 21, 20218679
June 10, 20218876
July 26, 20219062
September 15, 20219255
November 11, 20219424
December 26, 20219744
February 20, 202210002
April 6, 202210211
May 22, 202210387
July 7, 202210558
August 23, 202210729
October 11, 202210888
November 27, 202211025
January 19, 202311187
March 7, 202311307
April 26, 202311458
June 12, 202311619
July 29, 202311781
September 17, 202311924
November 7, 202312064
December 26, 202312215
February 15, 202412359
April 1, 202412519
May 19, 202412663
July 6, 202412833
August 23, 202412974
October 24, 202413174
December 9, 202413315
January 28, 202513539
March 15, 202513676
May 1, 202513818
June 30, 202513922
August 26, 202514017
November 2, 202514091
January 11, 202614159
September 15, 202614211

How each series was read

  • pandas-dev/pandas

    Historical star data · Covers through September 15, 2026

  • pola-rs/polars

    Historical star data · Covers through September 16, 2026

  • numpy/numpy

    Historical star data · Covers through September 13, 2026

  • apache/arrow

    Historical star data · Covers through September 13, 2026

  • dask/dask

    Historical star data · Covers through September 15, 2026

Ranking

5 repositories

Python data tools ranked by current total GitHub stars
#RepositoryStars+90dFirst starHealth
1pandas-dev/pandas49,736~572011debt charts
2pola-rs/polars39,737~332020debt charts
3numpy/numpy32,745~342011debt charts
4apache/arrow17,115~232016debt charts
5dask/dask13,919~102015debt charts

Repository health compared

Live analysis · unavailable data stays labelled

Popularity is only one axis. Compare technical scale, maintenance cadence, ownership resilience and change pressure against the same completed analysis that sits behind each report.

Reach

Popularity and real-world adoption

Signalpandas-dev/pandaspola-rs/polarsnumpy/numpyapache/arrowdask/dask
GitHub starsCurrent public GitHub metadata total.Best result in this row: 49,73639,73732,74517,11513,919
Stars gained · trailing 90dChange in the newest 90 days covered by each cached series.Best result in this row: +57+33+34+23+10
ForksCurrent public GitHub metadata total.Not availableNot availableNot availableNot availableNot available
Largest package audienceLargest resolved registry total; sources are shown explicitly.No resolved packageNo resolved packageNo resolved packageNo resolved packageNo resolved package
Repository ageElapsed years since the GitHub creation timestamp.16 years6.3 years16 years11 years12 years

Codebase

Size and technical center of gravity

Signalpandas-dev/pandaspola-rs/polarsnumpy/numpyapache/arrowdask/dask
Dominant languageLargest share of analyzed code lines at current HEAD.Not availableNot availableNot availableNot availableNot available
Code linesAnalyzed source lines at current HEAD, excluding blanks and comments.Not availableNot availableNot availableNot availableNot available
Languages representedLanguages with non-zero files or line counts.Not availableNot availableNot availableNot availableNot available

Maintenance

Commit volume and recent operating cadence

Signalpandas-dev/pandaspola-rs/polarsnumpy/numpyapache/arrowdask/dask
Repository commitsFull repository commit total reported by the analysis.Not availableNot availableNot availableNot availableNot available
Commits · trailing 90dCommit count in the newest 90 days covered by the repository analysis.Not availableNot availableNot availableNot availableNot available

Ownership

How broadly maintenance responsibility is distributed

Signalpandas-dev/pandaspola-rs/polarsnumpy/numpyapache/arrowdask/dask
Bus factorFewest analyzed contributors carrying at least half the commits.Not availableNot availableNot availableNot availableNot available
Top contributor concentrationShare of attributed commits carried by the most active contributor.Not availableNot availableNot availableNot availableNot available

Change signals

Debt markers and fix pressure in frequently changed files

Signalpandas-dev/pandaspola-rs/polarsnumpy/numpyapache/arrowdask/dask
Fix-labelled share · frequently changed filesFix-labelled commits divided by commits across the analyzed high-frequency file set.Not availableNot availableNot availableNot availableNot available
Recent TODO/FIXME movementLatest cumulative marker count and its change over the trailing 90 days.Not availableNot availableNot availableNot availableNot available

Head to head

open in the builder

Frequently asked

Which of these python data tools has the most GitHub stars?

pandas-dev/pandas is the most-starred of the python data tools gitdebt compares, with 49,736 GitHub stars as of Sep 2026. It earned its first star in 2011.

Which of these python data tools is growing the fastest?

pandas-dev/pandas added the most stars over the last 90 days of its cached history — about 57 new stars. 90-day figures are approximate for older repos, whose history is downsampled.

How is this comparison computed?

The table ranks public repository metadata by current total stars. Each curve is that repository's stored star series — read either from GitHub's stargazer list or rebuilt from historical star data — drawn on shared axes, with trailing 90-day growth estimated from it. The legend under the chart names each series' own source and coverage date. Repo-health charts come independently from each repository's commit history.

Related categories

all categories

Fastest-growing repos across all of gitdebt