Skip to content
gitdebt

Vector databases: star history compared

Most starred

47k

milvus-io/milvus

Vector search jumped from an information-retrieval niche to core infrastructure the moment retrieval-augmented generation became the default LLM architecture. The 2022–2023 inflection is visible in every curve in this category — Chroma sprinted from zero alongside the LangChain wave, Qdrant and Weaviate converted the moment into durable growth, and pgvector made the counter-argument that your existing Postgres was the vector database all along.

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

Vector databases — star history
47k STARS10 YR 7 MOmilvus-io/milvus47kfacebookresearch/faiss42kqdrant/qdrant36kchroma-core/chroma30kpgvector/pgvector24kweaviate/weaviate17k

milvus-io/milvus: 46,658 stars on November 14, 2026. facebookresearch/faiss: 41,634 stars on November 14, 2026. qdrant/qdrant: 35,551 stars on November 14, 2026. chroma-core/chroma: 29,682 stars on November 13, 2026. pgvector/pgvector: 23,677 stars on November 13, 2026. weaviate/weaviate: 16,944 stars on November 13, 2026.

Star history for milvus-io/milvus
DateStars
September 16, 20191
November 12, 20191767
December 14, 20191998
January 16, 20202299
February 19, 20202408
March 23, 20202570
April 25, 20202809
May 27, 20203026
June 28, 20203244
July 31, 20203430
September 8, 20203656
October 11, 20203809
November 14, 20204029
December 16, 20204354
January 18, 20214492
February 19, 20214673
March 23, 20214900
April 25, 20215113
May 27, 20215762
June 29, 20216125
August 1, 20216780
September 2, 20217046
October 6, 20217501
November 7, 20218042
December 9, 20218290
January 12, 20228563
February 13, 20228822
March 17, 20229162
April 19, 20229493
May 22, 20229759
June 30, 202210484
August 1, 202210792
September 2, 202211445
October 5, 202212456
November 6, 202212782
December 8, 202213057
January 10, 202313311
February 11, 202313594
March 15, 202314022
April 17, 202315738
May 19, 202317227
June 21, 202318629
July 23, 202319974
August 24, 202320839
September 26, 202321504
October 28, 202322111
November 29, 202322747
January 1, 202423420
February 2, 202424100
March 5, 202424702
April 13, 202425622
May 15, 202426283
June 17, 202426903
July 19, 202427486
August 20, 202428107
September 22, 202428708
October 24, 202429298
November 25, 202430128
December 28, 202430741
January 29, 202531311
March 3, 202532127
April 4, 202533127
May 6, 202533816
June 8, 202534518
July 10, 202535242
August 11, 202535858
September 13, 202536666
October 15, 202537357
November 16, 202538589
December 19, 202541174
January 26, 202641910
February 28, 202642462
April 1, 202643120
May 3, 202643717
June 5, 202644362
July 7, 202644899
August 8, 202645398
September 10, 202645941
October 12, 202646297
November 14, 202646658
Star history for facebookresearch/faiss
DateStars
February 15, 20171
April 11, 20171454
May 29, 20171702
July 14, 20171867
September 4, 20171990
October 23, 20172114
December 6, 20172318
January 20, 20182690
March 5, 20183012
April 21, 20183287
June 15, 20183667
July 29, 20183942
September 11, 20184224
October 26, 20184503
December 9, 20184802
January 22, 20195203
March 7, 20195525
April 20, 20195873
June 4, 20196255
July 18, 20196666
August 31, 20197042
October 14, 20197369
November 27, 20197793
January 10, 20208186
February 23, 20208498
April 7, 20208803
May 22, 20209253
July 5, 20209693
August 18, 202010140
October 1, 202010543
November 23, 202011088
January 6, 202111549
February 19, 202111985
April 4, 202112534
May 18, 202112966
July 1, 202113383
August 15, 202113780
September 28, 202114147
November 11, 202114539
December 26, 202115244
February 8, 202215597
March 24, 202215973
May 7, 202216336
June 20, 202216664
August 4, 202217037
September 17, 202217384
October 31, 202217761
December 14, 202218114
January 28, 202318479
March 13, 202319135
May 5, 202320838
June 18, 202322046
August 1, 202323031
September 14, 202323788
October 29, 202324464
December 12, 202325190
January 25, 202425873
March 9, 202426652
April 22, 202427476
June 5, 202428220
July 19, 202428966
September 1, 202429661
October 16, 202430361
November 29, 202431114
January 12, 202531770
February 25, 202532692
April 10, 202533688
May 24, 202534577
July 7, 202535410
August 20, 202536194
October 12, 202537004
November 26, 202537724
January 9, 202638304
February 22, 202638814
April 7, 202639358
May 21, 202639872
July 4, 202640294
August 17, 202640654
September 30, 202640942
November 14, 202641634
Star history for qdrant/qdrant
DateStars
October 27, 20201
May 4, 202150
June 7, 2021199
July 7, 2021325
August 10, 2021450
September 9, 2021505
October 18, 2021586
December 5, 2021630
January 10, 2022698
February 4, 20221034
March 10, 20221129
April 12, 20221202
May 9, 20221408
June 2, 20221654
June 27, 20221807
July 22, 20221945
August 16, 20222073
September 9, 20222302
October 5, 20222482
October 29, 20222676
November 22, 20222916
December 18, 20223236
January 11, 20233436
February 4, 20233691
March 1, 20234312
March 25, 20234921
April 18, 20235698
May 13, 20239238
June 6, 202310286
June 30, 202310747
July 30, 202311339
August 23, 202311839
September 16, 202312252
October 11, 202312635
November 4, 202313061
November 28, 202314046
December 23, 202314534
January 16, 202414915
February 9, 202415471
March 5, 202415905
March 29, 202416806
April 23, 202417229
May 17, 202417563
June 10, 202417897
July 5, 202418207
July 29, 202418682
August 22, 202418994
September 16, 202419268
October 10, 202419539
November 3, 202419866
December 3, 202420288
December 27, 202420571
January 20, 202520894
February 14, 202521311
March 10, 202521885
April 3, 202522346
April 28, 202522768
May 22, 202523219
June 15, 202523688
July 10, 202524117
August 3, 202524627
August 27, 202525126
September 21, 202525679
October 15, 202526178
November 8, 202526590
December 3, 202527067
December 27, 202527507
January 20, 202627960
February 14, 202628459
March 10, 202629039
April 8, 202629881
May 3, 202630700
May 27, 202631375
June 20, 202632281
July 15, 202633106
August 8, 202633701
September 1, 202634200
September 26, 202634738
October 20, 202635125
November 14, 202635551
Star history for chroma-core/chroma
DateStars
December 13, 20222
February 15, 2023149
March 4, 2023441
March 22, 2023646
April 8, 20232010
April 25, 20233856
May 13, 20234685
May 30, 20235411
June 16, 20235959
July 4, 20236469
July 24, 20237096
August 11, 20237515
August 28, 20237823
September 14, 20238120
October 2, 20238410
October 19, 20238662
November 5, 20238914
November 23, 20239182
December 10, 20239488
December 27, 20239757
January 14, 202410055
January 31, 202410340
February 18, 202410583
March 6, 202410879
March 23, 202411170
April 10, 202411530
April 27, 202411846
May 14, 202412114
June 1, 202412396
June 18, 202412687
July 9, 202413065
July 26, 202413346
August 12, 202413615
August 30, 202413869
September 16, 202414110
October 3, 202414338
October 21, 202414582
November 7, 202414840
November 24, 202415119
December 12, 202415381
December 29, 202415653
January 16, 202516561
February 2, 202516904
February 19, 202517420
March 9, 202517998
March 26, 202518454
April 12, 202518803
April 30, 202519138
May 17, 202519434
June 3, 202519802
June 24, 202520209
July 11, 202520556
July 29, 202520933
August 15, 202521271
September 1, 202522450
September 19, 202522985
October 6, 202523304
October 23, 202523614
November 10, 202523918
November 27, 202524208
December 15, 202524536
January 1, 202624853
January 18, 202625194
February 5, 202625611
February 22, 202625889
March 11, 202626226
March 29, 202626705
April 15, 202627173
May 2, 202627496
May 20, 202627776
June 9, 202628112
June 27, 202628401
July 14, 202628607
July 31, 202628760
August 18, 202628950
September 4, 202629120
September 21, 202629265
October 9, 202629412
October 26, 202629558
November 13, 202629682
Star history for pgvector/pgvector
DateStars
April 20, 20214
May 10, 2021321
June 21, 2021345
September 7, 2021381
November 28, 2021414
February 1, 2022444
March 11, 2022474
May 8, 2022500
June 27, 2022537
September 13, 2022569
October 27, 2022603
November 26, 2022632
December 29, 2022669
January 23, 2023713
February 15, 2023974
March 8, 20231433
March 29, 20231848
April 19, 20232408
May 10, 20233049
May 30, 20233445
June 20, 20233877
July 11, 20234387
August 1, 20234747
August 22, 20235086
September 12, 20235420
October 2, 20235753
October 23, 20236104
November 13, 20236420
December 4, 20236784
December 25, 20237096
January 19, 20247418
February 8, 20247747
February 29, 20248028
March 21, 20248347
April 11, 20248654
May 2, 20249096
May 23, 20249472
June 12, 20249801
July 3, 202410168
July 24, 202410440
August 14, 202410906
September 4, 202411328
September 25, 202411598
October 15, 202411845
November 5, 202412157
November 26, 202412437
December 17, 202412738
January 7, 202513035
January 28, 202513432
February 17, 202513793
March 14, 202514288
April 4, 202514667
April 25, 202515020
May 16, 202515325
June 6, 202515652
June 26, 202515985
July 17, 202516306
August 7, 202516642
August 28, 202516972
September 18, 202517291
October 9, 202517613
October 29, 202517883
November 19, 202518202
December 10, 202518501
December 31, 202518819
January 21, 202619187
February 11, 202619556
March 3, 202619855
March 24, 202620224
April 14, 202620594
May 9, 202621036
May 30, 202621378
June 20, 202621715
July 11, 202622030
July 31, 202622322
August 21, 202622621
September 11, 202622929
October 2, 202623178
October 23, 202623434
November 13, 202623677
Star history for weaviate/weaviate
DateStars
April 9, 20161
April 18, 201732
July 13, 201866
April 5, 201998
August 29, 2019131
November 14, 2019173
February 2, 2020223
April 16, 2020271
July 13, 2020312
September 22, 2020355
January 11, 2021403
March 8, 2021459
April 14, 2021962
May 15, 20211122
June 29, 20211239
August 3, 20211311
September 11, 20211581
October 10, 20211662
November 12, 20211747
December 15, 20211884
January 15, 20221965
February 17, 20222075
March 19, 20222173
April 17, 20222236
May 25, 20222304
July 1, 20222371
August 2, 20222443
September 3, 20222535
October 4, 20222659
November 3, 20222732
December 13, 20222832
January 11, 20232980
February 9, 20233207
March 10, 20233462
April 7, 20234062
May 6, 20235357
June 4, 20235936
July 3, 20236295
August 1, 20236641
August 30, 20236977
September 27, 20237281
October 26, 20237561
November 24, 20237872
December 23, 20238114
January 22, 20248309
February 20, 20248531
March 19, 20248834
April 17, 20249088
May 16, 20249395
June 14, 20249713
July 19, 202410039
August 16, 202410251
September 14, 202410511
October 13, 202410817
November 11, 202411141
December 10, 202411462
January 8, 202511691
February 5, 202511935
March 6, 202512362
April 4, 202512710
May 3, 202512941
June 1, 202513214
June 30, 202513507
July 28, 202513774
August 26, 202514070
September 24, 202514416
October 23, 202514620
November 21, 202514853
December 20, 202515063
January 17, 202615236
February 21, 202615462
March 22, 202615702
April 20, 202615915
May 18, 202616096
June 16, 202616238
July 15, 202616512
August 13, 202616660
September 13, 202616756
October 12, 202616849
November 13, 202616944

How each series was read

  • milvus-io/milvus

    GitHub star history · Covers through November 14, 2026

  • facebookresearch/faiss

    GitHub star history · Covers through November 14, 2026

  • qdrant/qdrant

    GitHub star history · Covers through November 14, 2026

  • chroma-core/chroma

    GitHub star history · Covers through November 14, 2026

  • pgvector/pgvector

    GitHub star history · Covers through November 14, 2026

  • weaviate/weaviate

    GitHub star history · Covers through November 14, 2026

Ranking

6 repositories

Vector databases ranked by current total GitHub stars
#RepositoryStars+90dFirst starHealth
1milvus-io/milvus46,658~1.2k2019debt charts
2facebookresearch/faiss41,647~1.1k2017debt charts
3qdrant/qdrant35,551~1.7k2020debt charts
4chroma-core/chroma29,685~7662022debt charts
5pgvector/pgvector23,678~1.1k2021debt charts
6weaviate/weaviate16,944~2842016debt 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

Signalmilvus-io/milvusfacebookresearch/faissqdrant/qdrantchroma-core/chromapgvector/pgvectorweaviate/weaviate
GitHub starsCurrent public GitHub metadata total.Best result in this row: 46,65841,64735,55129,68523,67816,944
Stars gained · trailing 90dChange in the newest 90 days covered by each cached series.+1,165+1,051Best result in this row: +1,743+766+1,147+284
ForksCurrent public GitHub metadata total.Reading…Reading…Reading…Reading…Reading…Reading…
Largest package audienceLargest resolved registry total; sources are shown explicitly.Reading…Reading…Reading…Reading…Reading…Reading…
Repository ageElapsed years since the GitHub creation timestamp.7.2 years9.8 years6.5 years4.1 years5.6 years11 years

Codebase

Size and technical center of gravity

Signalmilvus-io/milvusfacebookresearch/faissqdrant/qdrantchroma-core/chromapgvector/pgvectorweaviate/weaviate
Dominant languageLargest share of analyzed code lines at current HEAD.Reading…Reading…Reading…Reading…Reading…Reading…
Code linesAnalyzed source lines at current HEAD, excluding blanks and comments.Reading…Reading…Reading…Reading…Reading…Reading…
Languages representedLanguages with non-zero files or line counts.Reading…Reading…Reading…Reading…Reading…Reading…

Maintenance

Commit volume and recent operating cadence

Signalmilvus-io/milvusfacebookresearch/faissqdrant/qdrantchroma-core/chromapgvector/pgvectorweaviate/weaviate
Repository commitsFull repository commit total reported by the analysis.Reading…Reading…Reading…Reading…Reading…Reading…
Commits · trailing 90dCommit count in the newest 90 days covered by the repository analysis.Reading…Reading…Reading…Reading…Reading…Reading…

Ownership

How broadly maintenance responsibility is distributed

Signalmilvus-io/milvusfacebookresearch/faissqdrant/qdrantchroma-core/chromapgvector/pgvectorweaviate/weaviate
Bus factorFewest analyzed contributors carrying at least half the commits.Reading…Reading…Reading…Reading…Reading…Reading…
Top contributor concentrationShare of attributed commits carried by the most active contributor.Reading…Reading…Reading…Reading…Reading…Reading…

Change signals

Debt markers and fix pressure in frequently changed files

Signalmilvus-io/milvusfacebookresearch/faissqdrant/qdrantchroma-core/chromapgvector/pgvectorweaviate/weaviate
Fix-labelled share · frequently changed filesFix-labelled commits divided by commits across the analyzed high-frequency file set.Reading…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…Reading…

Head to head

open in the builder

Frequently asked

Which of these vector databases has the most GitHub stars?

milvus-io/milvus is the most-starred of the vector databases gitdebt compares, with 46,658 GitHub stars as of Nov 2026. It earned its first star in 2019.

Which of these vector databases is growing the fastest?

qdrant/qdrant added the most stars over the last 90 days of its cached history — about 1,743 new stars, compared with about 1,165 for the category leader milvus-io/milvus. 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