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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: 51,816 stars on September 14, 2026. pola-rs/polars: 35,431 stars on September 12, 2026. numpy/numpy: 33,999 stars on September 13, 2026. apache/arrow: 16,539 stars on September 13, 2026. dask/dask: 14,210 stars on September 11, 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 10, 20142971
November 16, 20143267
January 21, 20153597
March 26, 20153924
May 29, 20154212
July 31, 20154524
October 4, 20154873
December 7, 20155277
February 12, 20165605
April 16, 20166052
June 18, 20166505
August 21, 20166947
October 24, 20167401
December 27, 20167855
February 28, 20178921
May 3, 20179791
July 6, 201710543
September 21, 201711429
November 23, 201712380
January 26, 201813331
March 31, 201814407
June 4, 201815285
August 6, 201816174
October 9, 201817096
December 12, 201818081
February 14, 201918928
April 19, 201920018
June 21, 201921082
August 24, 201922125
October 27, 201923276
December 30, 201924266
March 3, 202025384
May 5, 202026501
July 8, 202027570
September 11, 202028492
November 14, 202029379
January 16, 202130359
April 3, 202131638
June 9, 202132446
August 12, 202133241
October 17, 202133920
December 25, 202134696
February 27, 202235618
May 2, 202236603
July 4, 202237341
September 6, 202238142
November 9, 202238974
January 12, 202339682
March 17, 202340566
May 19, 202341743
July 22, 202342509
September 24, 202343335
November 27, 202344102
January 30, 202444822
April 2, 202445654
June 5, 202446340
August 8, 202447111
October 23, 202447965
December 26, 202448603
February 28, 202549302
May 3, 202549960
July 6, 202550421
September 7, 202550874
November 18, 202551173
January 23, 202651441
April 3, 202651664
September 14, 202651816
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 19, 2021679
March 20, 20211239
April 15, 20211419
May 19, 20211634
June 14, 20211784
July 10, 20211915
August 5, 20212032
September 6, 20212196
October 2, 20212504
November 6, 20212637
December 2, 20212974
December 28, 20213695
January 23, 20224121
February 18, 20224404
March 16, 20224718
April 12, 20224967
May 8, 20225461
June 3, 20225928
June 29, 20226271
July 25, 20226837
August 20, 20227194
September 15, 20227563
October 11, 20228185
November 12, 20228783
December 8, 20229251
January 3, 202310990
January 29, 202312629
February 24, 202313885
March 22, 202314965
April 18, 202315873
May 14, 202316436
June 9, 202317040
July 5, 202317671
July 31, 202318235
August 26, 202319095
September 21, 202319674
October 17, 202320260
November 13, 202320842
December 9, 202321409
January 4, 202422057
January 30, 202423241
February 25, 202423790
March 22, 202424551
April 23, 202425430
May 19, 202425968
June 14, 202426492
July 10, 202427292
August 5, 202427795
August 31, 202428363
September 26, 202428874
October 22, 202429354
November 18, 202429870
December 14, 202430339
January 9, 202530773
February 4, 202531192
March 2, 202531636
March 28, 202532172
April 23, 202532681
May 19, 202533128
June 15, 202533355
July 11, 202533590
August 6, 202533865
September 1, 202534145
October 2, 202534383
November 3, 202534531
November 30, 202534696
December 26, 202534851
January 21, 202635018
February 16, 202635142
March 15, 202635228
April 13, 202635327
May 17, 202635386
September 12, 202635431
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 15, 2016573
April 10, 2016664
June 10, 2016763
August 9, 2016877
September 29, 20161007
December 2, 20161155
January 24, 20171286
March 11, 20171438
April 30, 20171561
June 22, 20171722
August 6, 20171880
September 22, 20172012
November 8, 20172163
December 26, 20172348
February 12, 20182524
March 30, 20182747
May 18, 20182935
July 4, 20183162
August 22, 20183373
October 6, 20183572
November 23, 20183790
January 10, 20194044
February 24, 20194281
April 10, 20194606
May 26, 20194983
July 19, 20195464
September 3, 20195699
October 18, 20195923
December 4, 20196178
January 19, 20206411
March 4, 20206643
April 19, 20206839
June 3, 20207082
July 19, 20207271
September 4, 20207503
October 19, 20207733
December 4, 20207967
January 18, 20218179
March 5, 20218445
April 21, 20218679
June 9, 20218873
July 26, 20219062
September 14, 20219250
November 10, 20219417
December 26, 20219744
February 19, 202210000
April 6, 202210211
May 21, 202210381
July 6, 202210555
August 23, 202210729
October 10, 202210885
November 26, 202211023
January 18, 202311184
March 6, 202311302
April 26, 202311458
June 11, 202311615
July 28, 202311780
September 16, 202311921
November 6, 202312063
December 26, 202312215
February 14, 202412357
March 31, 202412518
May 18, 202412659
July 5, 202412828
August 23, 202412974
October 23, 202413166
December 8, 202413311
January 27, 202513535
March 14, 202513672
May 1, 202513818
June 29, 202513920
August 25, 202514015
October 31, 202514089
January 10, 202614157
September 11, 202614210

How each series was read

  • pandas-dev/pandas

    Historical star data · Covers through September 14, 2026

  • pola-rs/polars

    Historical star data · Covers through September 12, 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 11, 2026

Ranking

5 repositories

Python data tools ranked by current total GitHub stars
#RepositoryStars+90dFirst starHealth
1pandas-dev/pandas49,732~582011debt charts
2pola-rs/polars39,723~282020debt charts
3numpy/numpy32,745~342011debt charts
4apache/arrow17,110~232016debt charts
5dask/dask13,917~102015debt 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: 49,73239,72332,74517,11013,917
Stars gained · trailing 90dChange in the newest 90 days covered by each cached series.Best result in this row: +58+28+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 49,732 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 58 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