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CSS frameworks: star history compared

Most starred

175k

twbs/bootstrap

Bootstrap owned an entire decade of the web, and its star history shows it — a curve so early and so large that everything since gets judged against it. Tailwind's utility-first bet looked contrarian in 2019 and inevitable by 2022; the crossover between those two lines is one of the cleanest changing-of-the-guard moments on GitHub. Bulma, UnoCSS and Pico each carve out real niches in the gaps.

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

CSS frameworks — star history
175k STARS15 YR 4 MOtwbs/bootstrap175ktailwindlabs/tailwindcss99kjgthms/bulma50kunocss/unocss19kpicocss/pico17k

twbs/bootstrap: 175,056 stars on November 13, 2026. tailwindlabs/tailwindcss: 98,601 stars on November 14, 2026. jgthms/bulma: 50,033 stars on November 14, 2026. unocss/unocss: 18,988 stars on November 13, 2026. picocss/pico: 16,815 stars on November 14, 2026.

Star history for twbs/bootstrap
DateStars
July 29, 201122518
October 7, 201124861
December 16, 201126958
February 24, 201229302
May 4, 201231412
July 13, 201232987
September 21, 201234019
November 30, 201234657
February 8, 201335142
April 19, 201338729
July 12, 201342238
September 20, 201346988
November 29, 201349780
February 7, 201452403
April 18, 201454877
June 27, 201457043
September 5, 201459313
November 14, 201462017
January 23, 201564446
April 3, 201566970
June 12, 201569405
August 21, 201572213
October 30, 201575348
January 8, 201677951
March 18, 201680656
May 27, 201683277
August 5, 201685847
October 14, 201688928
December 23, 201691589
March 3, 201794132
May 26, 201797753
August 4, 2017100332
October 13, 2017103236
December 22, 2017106369
March 2, 2018109343
May 11, 2018111664
July 20, 2018113676
September 28, 2018115498
December 7, 2018117286
February 15, 2019119232
April 26, 2019121496
July 5, 2019123324
September 13, 2019124925
November 22, 2019126570
January 31, 2020128083
April 10, 2020129875
June 19, 2020132101
August 28, 2020134261
November 6, 2020135769
January 15, 2021137349
April 9, 2021140258
June 18, 2021142416
August 27, 2021143950
November 5, 2021145371
January 14, 2022146807
March 25, 2022148308
June 3, 2022150227
August 12, 2022151702
October 21, 2022153089
December 30, 2022154380
March 10, 2023155921
May 19, 2023157652
July 28, 2023158986
October 6, 2023160130
December 15, 2023161096
February 23, 2024162116
May 3, 2024163084
July 12, 2024163910
September 20, 2024166228
November 29, 2024167279
February 21, 2025168262
May 2, 2025169296
July 11, 2025169902
September 19, 2025171131
November 28, 2025171752
February 6, 2026172299
April 17, 2026172914
June 26, 2026173570
September 4, 2026174192
November 13, 2026175056
Star history for tailwindlabs/tailwindcss
DateStars
October 6, 201718
November 20, 20172394
January 1, 20183018
February 11, 20183476
March 25, 20184023
May 6, 20184413
June 16, 20184850
July 28, 20185290
September 8, 20185738
October 19, 20186509
December 8, 20187210
January 19, 20197805
March 1, 20198375
April 12, 20199477
May 24, 201910615
July 4, 201911731
August 15, 201912609
September 26, 201913496
November 6, 201914414
December 18, 201916191
January 28, 202017357
March 10, 202018850
April 21, 202019979
June 1, 202021723
July 13, 202023095
August 24, 202024673
October 4, 202025913
November 15, 202027509
December 26, 202030921
February 6, 202133688
March 28, 202136111
May 9, 202138393
June 19, 202140231
July 31, 202142127
September 11, 202143604
October 22, 202145158
December 3, 202146534
January 13, 202249088
February 24, 202250758
April 7, 202252137
May 18, 202253733
June 29, 202255149
August 10, 202256397
September 20, 202257622
November 1, 202258796
December 12, 202259970
January 23, 202361330
March 6, 202362692
April 16, 202364218
May 28, 202365883
July 17, 202367412
August 28, 202368606
October 8, 202369667
November 19, 202370905
December 30, 202372059
February 10, 202473415
March 23, 202474853
May 3, 202476118
June 14, 202477371
July 26, 202478404
September 5, 202479410
October 17, 202480347
November 27, 202481317
January 8, 202582319
February 19, 202583799
April 1, 202584905
May 13, 202585930
June 24, 202586851
August 4, 202587761
September 15, 202588637
November 4, 202589512
December 15, 202590234
January 26, 202691994
March 9, 202692833
April 19, 202693699
May 31, 202694446
July 12, 202695218
August 22, 202696787
October 3, 202697485
November 14, 202698601
Star history for jgthms/bulma
DateStars
January 23, 20161
March 11, 20164961
April 28, 20165423
June 15, 20165859
August 2, 20166797
September 19, 20167903
November 7, 20168681
December 25, 20169644
February 11, 201710988
March 31, 201712334
May 28, 201713820
July 15, 201715112
September 1, 201716678
October 20, 201718142
December 7, 201720080
January 24, 201821324
March 13, 201822472
April 30, 201823657
June 18, 201824881
August 5, 201825903
September 22, 201827024
November 9, 201828014
December 27, 201828937
February 14, 201929916
April 3, 201930894
May 21, 201931771
July 8, 201932537
August 25, 201933246
October 13, 201933925
November 30, 201934550
January 27, 202035271
March 15, 202035849
May 2, 202036578
June 19, 202037230
August 6, 202037806
September 24, 202038401
November 11, 202038902
December 29, 202039332
February 15, 202139900
April 4, 202140400
May 23, 202140819
July 10, 202141223
August 27, 202141543
October 14, 202141872
December 1, 202142190
January 19, 202242531
March 8, 202242876
April 25, 202243164
June 12, 202243475
July 30, 202243742
September 26, 202244071
November 13, 202244354
January 1, 202344671
February 18, 202344949
April 7, 202345251
May 27, 202345474
July 14, 202345699
September 3, 202345917
October 21, 202346099
December 11, 202346284
January 29, 202446479
March 17, 202446706
May 5, 202447378
June 23, 202447617
August 10, 202447925
September 29, 202448148
November 16, 202448370
January 8, 202548531
February 26, 202548721
April 16, 202548891
June 13, 202549071
August 5, 202549207
September 27, 202549338
November 20, 202549447
January 13, 202649568
March 9, 202649662
May 4, 202649765
July 6, 202649863
September 15, 202649952
November 14, 202650033
Star history for unocss/unocss
DateStars
October 18, 20211
November 12, 20211304
December 5, 20212091
December 27, 20212450
January 19, 20222708
February 10, 20222865
March 5, 20223154
March 27, 20223616
April 19, 20223894
May 11, 20224381
June 7, 20224803
June 30, 20225235
July 23, 20225552
August 14, 20225816
September 6, 20226185
September 28, 20226485
October 21, 20226841
November 12, 20227075
December 5, 20227323
December 27, 20227523
January 19, 20238151
February 10, 20238508
March 5, 20238933
March 28, 20239233
April 19, 202310328
May 12, 202310930
June 3, 202311282
June 26, 202311597
July 18, 202311909
August 10, 202312195
September 6, 202312643
September 28, 202312906
October 21, 202313134
November 12, 202313340
December 5, 202313559
December 28, 202313864
January 19, 202414125
February 11, 202414311
March 5, 202414485
March 28, 202414691
April 19, 202414831
May 12, 202415018
June 3, 202415161
June 26, 202415286
July 18, 202415443
August 10, 202415569
September 2, 202415758
September 24, 202415866
October 17, 202416003
November 8, 202416132
December 5, 202416305
December 28, 202416429
January 19, 202516569
February 11, 202516689
March 5, 202516836
March 28, 202517013
April 19, 202517147
May 12, 202517256
June 4, 202517367
June 28, 202517473
July 21, 202517578
August 12, 202517678
September 5, 202517767
September 28, 202517858
October 22, 202517933
November 13, 202518014
December 8, 202518105
December 30, 202518180
January 23, 202618290
February 16, 202618382
March 16, 202618480
April 7, 202618554
May 1, 202618622
May 26, 202618688
June 21, 202618750
July 21, 202618796
August 15, 202618854
September 11, 202618905
October 12, 202618950
November 13, 202618988
Star history for picocss/pico
DateStars
November 28, 20191
October 27, 202035
January 30, 202166
June 9, 202194
July 25, 2021134
August 23, 2021185
September 19, 2021292
October 18, 2021468
November 16, 2021543
December 17, 20212149
January 16, 20223557
February 9, 20223904
March 6, 20224104
March 30, 20224292
April 24, 20224480
May 18, 20224681
June 12, 20224816
July 8, 20224943
August 2, 20225058
August 28, 20225208
September 22, 20225324
October 16, 20225436
November 10, 20225552
December 5, 20225652
December 30, 20225930
January 23, 20237338
February 17, 20237751
March 13, 20237994
April 7, 20238313
May 1, 20238582
May 31, 20238818
June 24, 20238951
July 19, 20239165
August 12, 20239362
September 6, 20239584
September 30, 20239788
October 25, 202310031
November 18, 202310195
December 14, 202310324
January 7, 202410483
February 1, 202410688
February 25, 202411125
March 21, 202411453
April 14, 202411797
May 9, 202411972
June 2, 202412125
June 27, 202412277
July 21, 202412399
August 15, 202412581
September 8, 202412775
October 8, 202413109
November 2, 202413296
November 27, 202413441
December 21, 202413572
January 15, 202513768
February 8, 202513901
March 5, 202514050
March 29, 202514204
April 23, 202514352
May 17, 202514480
June 11, 202514608
July 5, 202514712
August 1, 202514824
August 26, 202514956
September 20, 202515424
October 14, 202515539
November 9, 202515647
December 3, 202515748
December 31, 202515846
January 24, 202615968
February 23, 202616109
March 20, 202616235
April 15, 202616313
May 9, 202616387
June 4, 202616476
June 30, 202616555
July 27, 202616620
August 23, 202616708
September 19, 202616775
November 14, 202616815

How each series was read

  • twbs/bootstrap

    GitHub star history · Covers through November 14, 2026

  • tailwindlabs/tailwindcss

    GitHub star history · Covers through November 14, 2026

  • jgthms/bulma

    GitHub star history · Covers through November 14, 2026

  • unocss/unocss

    GitHub star history · Covers through November 14, 2026

  • picocss/pico

    GitHub star history · Covers through November 14, 2026

Ranking

5 repositories

CSS frameworks ranked by current total GitHub stars
#RepositoryStars+90dFirst starHealth
1twbs/bootstrap175,057~1.1k2011debt charts
2tailwindlabs/tailwindcss98,601~1.9k2017debt charts
3jgthms/bulma50,034~1352016debt charts
4unocss/unocss18,987~1342021debt charts
5picocss/pico16,815~1362019debt 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

Signaltwbs/bootstraptailwindlabs/tailwindcssjgthms/bulmaunocss/unocsspicocss/pico
GitHub starsCurrent public GitHub metadata total.Best result in this row: 175,05798,60150,03418,98716,815
Stars gained · trailing 90dChange in the newest 90 days covered by each cached series.+1,106Best result in this row: +1,941+135+134+136
ForksCurrent public GitHub metadata total.Reading…Reading…Reading…Reading…Reading…
Largest package audienceLargest resolved registry total; sources are shown explicitly.Reading…Reading…Reading…Reading…Reading…
Repository ageElapsed years since the GitHub creation timestamp.15 years9.1 years11 years5.1 years7.0 years

Codebase

Size and technical center of gravity

Signaltwbs/bootstraptailwindlabs/tailwindcssjgthms/bulmaunocss/unocsspicocss/pico
Dominant languageLargest share of analyzed code lines at current HEAD.Reading…Reading…Reading…Reading…Reading…
Code linesAnalyzed source lines at current HEAD, excluding blanks and comments.Reading…Reading…Reading…Reading…Reading…
Languages representedLanguages with non-zero files or line counts.Reading…Reading…Reading…Reading…Reading…

Maintenance

Commit volume and recent operating cadence

Signaltwbs/bootstraptailwindlabs/tailwindcssjgthms/bulmaunocss/unocsspicocss/pico
Repository commitsFull repository commit total reported by the analysis.Reading…Reading…Reading…Reading…Reading…
Commits · trailing 90dCommit count in the newest 90 days covered by the repository analysis.Reading…Reading…Reading…Reading…Reading…

Ownership

How broadly maintenance responsibility is distributed

Signaltwbs/bootstraptailwindlabs/tailwindcssjgthms/bulmaunocss/unocsspicocss/pico
Bus factorFewest analyzed contributors carrying at least half the commits.Reading…Reading…Reading…Reading…Reading…
Top contributor concentrationShare of attributed commits carried by the most active contributor.Reading…Reading…Reading…Reading…Reading…

Change signals

Debt markers and fix pressure in frequently changed files

Signaltwbs/bootstraptailwindlabs/tailwindcssjgthms/bulmaunocss/unocsspicocss/pico
Fix-labelled share · frequently changed filesFix-labelled commits divided by commits across the analyzed high-frequency file set.Reading…Reading…Reading…Reading…Reading…
Recent TODO/FIXME movementLatest cumulative marker count and its change over the trailing 90 days.Reading…Reading…Reading…Reading…Reading…

Head to head

open in the builder

Frequently asked

Which of these css frameworks has the most GitHub stars?

twbs/bootstrap is the most-starred of the css frameworks gitdebt compares, with 175,057 GitHub stars as of Nov 2026. It earned its first star in 2011.

Which of these css frameworks is growing the fastest?

tailwindlabs/tailwindcss added the most stars over the last 90 days of its cached history — about 1,941 new stars, compared with about 1,106 for the category leader twbs/bootstrap. 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 from GitHub's own star history, or from an older stargazer-list or historical-data read until gitdebt reads it again — 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