I’ll just leave that here… This is a list for a detailed category search on Netflix. Just click an ID to look up movies of a particular category or append the ID to the following URL:
https://www.netflix.com/browse/genre/

# Genre Search Link
A Action & Adventure 1365
  Action Comedies 43040
  Action Sci-Fi & Fantasy 1568
  Action Thrillers 43048
  Adult Animation 11881
  Adventures 7442
  African Movies 3761
  Alien Sci-Fi 3327
  Animal Tales 5507
  Anime 7424
  Anime Action 2653
  Anime Comedies 9302
  Anime Dramas 452
  Anime Fantasy 11146
  Anime Features 3063
  Anime Horror 10695
  Anime Sci-Fi 2729
  Anime Series 6721
  Art House 29764
  Art House Movies 29764
  Asian Action Movies 77232
  Australian Movies 5230
B B-Horror Movies 8195
  Baseball Movies 12339
  Basketball Movies 12762
  Belgian Movies 262
  Biographical Documentaries 3652
  Biographical Dramas 3179
  Boxing Movies 12443
  British Movies 10757
  British TV Shows 52117
C Campy Movies 1252
  Children & Family Movies 783
  Chinese Movies 3960
  Classic Action & Adventure 46576
  Classic Comedies 31694
  Classic Dramas 29809
  Classic Foreign Movies 32473
  Classic Movies 31574
  Classic Musicals 32392
  Classic Romantic Movies 31273
  Classic Sci-Fi & Fantasy 47147
  Classic Thrillers 46588
  Classic TV Shows 46553
  Classic War Movies 48744
  Classic Westerns 47465
  Comedies 6548
  Comic Book and Superhero Movies 10118
  Country & Western/Folk 1105
  Courtroom Dramas 2748
  Creature Features 6895
  Crime Action & Adventure 9584
  Crime Documentaries 9875
  Crime Dramas 6889
  Crime Thrillers 10499
  Crime TV Shows 26146
  Cult Comedies 9434
  Cult Horror Movies 10944
  Cult Movies 7627
  Cult Sci-Fi & Fantasy 4734
  Cult TV Shows 74652
D Dark Comedies 869
  Deep Sea Horror Movies 45028
  Disney 67673
  Disney Musicals 59433
  Documentaries 6839
  Dramas 5763
  Dramas based on Books 4961
  Dramas based on Real Life 3653
  Dutch Movies 10606
E Eastern European Movies 5254
  Education for Kids 10659
  Epics 52858
  Experimental Movies 11079
F Faith & Spirituality 26835
  Faith & Spirituality Movies 52804
  Family Features 51056
  Fantasy Movies 9744
  Film Noir 7687
  Food & Travel TV 72436
  Football Movies 12803
  Foreign Action & Adventure 11828
  Foreign Comedies 4426
  Foreign Documentaries 5161
  Foreign Dramas 2150
  Foreign Gay & Lesbian Movies 8243
  Foreign Horror Movies 8654
  Foreign Movies 7462
  Foreign Sci-Fi & Fantasy 6485
  Foreign Thrillers 10306
  French Movies 58807
G Gangster Movies 31851
  Gay & Lesbian Dramas 500
  German Movies 58886
  Greek Movies 61115
H Historical Documentaries 5349
  Horror Comedy 89585
  Horror Movies 8711
I Independent Action & Adventure 11804
  Independent Comedies 4195
  Independent Dramas 384
  Independent Movies 7077
  Independent Thrillers 3269
  Indian Movies 10463
  Irish Movies 58750
  Italian Movies 8221
J Japanese Movies 10398
  Jazz & Easy Listening 10271
K Kids Faith & Spirituality 751423
  Kids Music 52843
  Kids’ TV 27346
  Korean Movies 5685
  Korean TV Shows 67879
L Late Night Comedies 1402
  Latin American Movies 1613
  Latin Music 10741
  LGBTQ Movies 5977
M Martial Arts Movies 8985
  Martial Arts, Boxing & Wrestling 6695
  Middle Eastern Movies 5875
  Military Action & Adventure 2125
  Military Documentaries 4006
  Military Dramas 11
  Military TV Shows 25804
  Mind-Bending 1089
  Miniseries 4814
  Mockumentaries 26
  Monster Movies 947
  Movies based on children’s books 10056
  Movies for ages 0 to 2 6796
  Movies for ages 11 to 12 6962
  Movies for ages 2 to 4 6218
  Movies for ages 5 to 7 5455
  Movies for ages 8 to 10 561
  Music 1701
  Music & Concert Documentaries 90361
  Musicals 13335
  Mysteries 9994
N New Zealand Movies 63782
P Period Pieces 12123
  Political Comedies 2700
  Political Documentaries 7018
  Political Dramas 6616
  Political Thrillers 10504
  Psychological Thrillers 5505
Q Quirky Romance 36103
R Reality TV 9833
  Religious Documentaries 10005
  Rock & Pop Concerts 3278
  Romantic Comedies 5475
  Romantic Dramas 1255
  Romantic Favorites 502675
  Romantic Foreign Movies 7153
  Romantic Independent Movies 9916
  Romantic Movies 8883
  Russian 11567
S Satanic Stories 6998
  Satires 4922
  Scandinavian Movies 9292
  Sci-Fi & Fantasy 1492
  Sci-Fi Adventure 6926
  Sci-Fi Dramas 3916
  Sci-Fi Horror Movies 1694
  Sci-Fi Thrillers 11014
  Science & Nature Documentaries 2595
  Science & Nature TV 52780
  Screwball Comedies 9702
  Showbiz Dramas 5012
  Showbiz Musicals 13573
  Silent Movies 53310
  Slapstick Comedies 10256
  Slasher and Serial Killer Movies 8646
  Soccer Movies 12549
  Social & Cultural Documentaries 3675
  Social Issue Dramas 3947
  Southeast Asian Movies 9196
  Spanish Movies 58741
  Spiritual Documentaries 2760
  Sports & Fitness 9327
  Sports Comedies 5286
  Sports Documentaries 180
  Sports Dramas 7243
  Sports Movies 4370
  Spy Action & Adventure 10702
  Spy Thrillers 9147
  Stage Musicals 55774
  Stand-up Comedy 11559
  Steamy Romantic Movies 35800
  Steamy Thrillers 972
  Supernatural Horror Movies 42023
  Supernatural Thrillers 11140
T Tearjerkers 6384
  Teen Comedies 3519
  Teen Dramas 9299
  Teen Screams 52147
  Teen TV Shows 60951
  Thrillers 8933
  Travel & Adventure Documentaries 1159
  TV Action & Adventure 10673
  TV Cartoons 11177
  TV Comedies 10375
  TV Documentaries 10105
  TV Dramas 11714
  TV Horror 83059
  TV Mysteries 4366
  TV Sci-Fi & Fantasy 1372
  TV Shows 83
U Urban & Dance Concerts 9472
V Vampire Horror Movies 75804
W Werewolf Horror Movies 75930
  Western 7700
  World Music Concerts 2856
Z Zombie Horror Movies 75405