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facebook/folly

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

Open on GitHub
Current stars
30,537
Activity since
2012
Latest activity
Sep 2026

Public star activity

Last 30 days
+13
Last 90 days
+13
Actions / day
6.0
Public star actions
stars from September 21, 2012 to September 4, 2026, peaking at 30,791.31k STARS13 YR 11 MO31kSEP 2026SEP 2012

30,791 stars on September 4, 2026.

stars by date
Datestars
September 21, 20122
October 30, 201236
November 20, 201254
December 20, 2012104
February 2, 2013157
February 16, 2013212
March 15, 2013255
April 18, 2013300
May 7, 2013324
June 4, 2013376
July 3, 2013425
July 16, 2013452
August 12, 2013491
September 9, 2013538
September 25, 2013564
October 22, 2013619
November 23, 2013679
December 6, 2013699
January 2, 2014755
February 1, 2014804
February 15, 2014830
March 14, 2014934
April 10, 20141,008
April 22, 20141,042
May 18, 20141,089
June 14, 20141,144
June 29, 20141,170
July 30, 20141,238
August 28, 20141,305
September 8, 20141,717
October 2, 20141,842
October 26, 20141,919
November 7, 20142,013
December 1, 20142,117
December 24, 20142,189
January 5, 20152,221
January 31, 20152,281
February 26, 20152,345
March 9, 20152,391
April 2, 20152,471
April 25, 20152,552
May 7, 20152,583
June 2, 20152,657
June 25, 20152,954
July 7, 20153,034
July 30, 20153,147
August 22, 20153,265
September 4, 20153,308
September 28, 20153,454
October 22, 20153,555
November 3, 20153,607
November 28, 20153,719
December 22, 20153,784
January 6, 20164,040
January 29, 20164,236
February 21, 20164,353
March 4, 20164,423
March 27, 20164,533
April 20, 20164,687
May 1, 20164,754
May 25, 20164,891
June 17, 20165,002
July 11, 20165,133
July 23, 20165,179
August 15, 20165,315
September 8, 20165,432
September 19, 20165,503
October 13, 20165,840
November 5, 20165,979
November 17, 20166,048
December 10, 20166,194
January 3, 20176,336
January 15, 20176,425
February 8, 20176,528
March 4, 20176,668
March 15, 20176,726
April 9, 20176,857
May 2, 20176,955
May 14, 20177,019
June 7, 20177,160
June 30, 20177,311
July 12, 20177,384
August 5, 20177,500
August 28, 20177,616
September 9, 20177,693
October 3, 20177,917
October 27, 20178,056
November 7, 20178,143
December 1, 20178,301
December 24, 20178,416
January 6, 20188,485
January 29, 20188,609
February 21, 20188,780
March 5, 20188,850
March 28, 20189,023
April 22, 20189,177
May 3, 20189,239
May 27, 20189,430
June 19, 20189,570
July 1, 20189,629
July 24, 20189,750
August 16, 20189,907
August 28, 20189,988
September 20, 201810,109
October 14, 201810,222
October 25, 201810,282
November 18, 201810,416
December 12, 201810,534
December 26, 201810,606
January 18, 201910,748
February 11, 201910,907
February 23, 201910,988
March 18, 201911,176
April 11, 201911,348
April 22, 201911,425
May 16, 201911,802
June 8, 201911,964
June 20, 201912,055
July 13, 201912,210
August 5, 201912,374
August 17, 201912,448
September 9, 201912,580
October 3, 201912,693
October 15, 201912,765
November 7, 201912,895
December 1, 201913,004
December 12, 201913,055
January 6, 202013,197
January 31, 202013,301
February 12, 202013,355
March 6, 202013,483
March 29, 202013,599
April 10, 202013,650
May 4, 202014,117
May 28, 202014,297
June 8, 202014,352
July 2, 202014,483
July 25, 202014,623
August 7, 202014,690
September 1, 202014,792
September 25, 202014,927
October 8, 202014,971
November 2, 202015,113
November 26, 202015,253
December 7, 202015,312
December 31, 202015,439
January 23, 202115,553
February 4, 202115,642
February 27, 202115,775
March 23, 202115,918
April 4, 202115,978
April 27, 202116,247
May 24, 202116,586
June 4, 202116,729
June 28, 202117,601
July 21, 202118,395
August 2, 202118,535
August 27, 202118,723
September 19, 202119,082
October 1, 202119,452
November 1, 202119,517
November 24, 202119,715
December 6, 202119,896
December 29, 202120,111
January 22, 202220,500
February 2, 202220,570
February 26, 202220,850
March 21, 202221,034
April 2, 202221,127
April 26, 202221,267
May 19, 202221,393
May 31, 202221,459
June 23, 202221,715
July 17, 202222,116
July 28, 202222,321
August 21, 202222,573
September 13, 202222,725
September 25, 202222,806
October 18, 202223,124
November 10, 202223,277
December 4, 202223,502
December 15, 202223,585
January 8, 202323,736
January 31, 202324,412
February 12, 202324,490
March 7, 202324,604
March 30, 202324,717
April 11, 202324,789
May 5, 202324,941
May 30, 202325,083
June 10, 202325,141
July 4, 202325,489
July 27, 202325,633
August 8, 202325,691
August 31, 202325,914
September 23, 202326,079
October 5, 202326,130
October 28, 202326,274
November 21, 202326,439
December 2, 202326,495
December 26, 202326,625
January 19, 202426,771
January 30, 202426,853
February 23, 202426,998
March 17, 202427,130
March 29, 202427,200
April 21, 202427,319
May 15, 202427,493
May 27, 202427,549
June 19, 202427,782
July 13, 202427,947
July 24, 202428,025
August 17, 202428,284
September 9, 202428,531
September 21, 202428,681
October 14, 202428,828
November 6, 202428,954
November 18, 202429,022
December 11, 202429,161
January 5, 202529,291
January 16, 202529,388
February 9, 202529,656
March 5, 202529,774
March 17, 202529,849
April 9, 202529,977
May 2, 202530,090
May 14, 202530,142
June 9, 202530,219
July 5, 202530,278
July 17, 202530,314
August 13, 202530,386
September 6, 202530,444
September 22, 202530,526
October 25, 202530,583
November 21, 202530,645
December 4, 202530,667
January 8, 202630,706
February 8, 202630,743
March 13, 202630,758
September 4, 202630,791

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

Observed activity milestones: 100 around Dec 20121k around Apr 201410k around Sep 2018

The commit history reads facebook/folly 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 facebook/folly
File change frequency
File change frequency for facebook/folly
Bus factor
Bus factor for facebook/folly
Maintenance pulse
Maintenance pulse for facebook/folly
Contributors
Contributors for facebook/folly
Language activity
Language activity for facebook/folly
Commit activity
Commit activity for facebook/folly
Recent TODO/FIXME movement
Recent TODO/FIXME movement for facebook/folly

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 facebook/folly.

Notes on facebook/folly

How many stars does facebook/folly have?
GitHub currently reports 30,537 stars for facebook/folly. 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 folly?
gitdebt observed about 13 public star actions for facebook/folly 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 folly still active?
Public archive data shows about 13 star actions for facebook/folly in the latest 30 days of coverage. For repository activity, use the commit heatmap, commit trend, and contributor charts on this page.
When was folly created?
facebook/folly was created on June 1, 2012. The first public star activity observed for facebook/folly is from Sep 2012.

Read folly against a neighbour

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

<sub>Star history source: Historical star data · Covers through September 4, 2026 · Still updating — <a href="https://gitdebt.com/facebook/folly?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.