Kaiju Streaming Guide

United States-based list, last updated on 1/2/19.

Amazon Prime Video

• Warning from Space (1956) [”public domain” copy]
• Varan the Unbelievable (1962)
• Matango (1963) [dub]
• Gammera the Invincible (1966) [HD, but missing all shots of fighter pilots]
• Gappa the Triphibian Monster (1967) [”public domain” copy]
• Gamera vs. Guiron (1969) [”public domain” copy]
• Space Amoeba (1971) [international dub]
  
• The Super Inframan (1975)
• Queen Kong (1976)
• The Mighty Peking Man (1977)
• Reptilian (1999)
• King of the Lost World (2005)
• Demeking the Sea Monster (2009)
• Mega Shark vs. Giant Octopus (2009)
• Mega Shark vs. Crocosaurus (2010)
• Atlantic Rim (2013)
• Mega Shark vs. Mecha Shark (2014)
• Mega Shark vs. Kolossus (2015)
• Long Live the King (2016)
• Atlantic Rim: Resurrection (2018)

Crackle

• Godzilla (1998)
• D-War (2007)

Crunchyroll (free; all subbed)

• Ultraman Gaia (TV 1998-1999)
• Ultraman Nexus (TV 2004-2005)
• Death Kappa (2010)
• Ultraman Ginga (TV 2013)
• Ultraman Ginga S (TV 2014)
• Ultraman X (TV 2015)
• Ultraman Orb (TV 2016)
• Kaiju Girls (TV 2016-2018)
• Ultraman Geed (TV 2017)
• SSSS.Gridman (TV 2018)

Fandor

• Gorgo (1961)
• Death Kappa (2010)

Hulu

• Godzilla (1998) 
  
• The Host (2006)
• Monsters (2010)
• Colossal (2017)

HBO

• Pacific Rim Uprising (2018)
• Rampage (2018)

Kanopy

• A*P*E (1976)

Netflix

• Mystery Science Theater 3000 (TV 1988-1999, 2017-2018) [Gorgo; Reptilicus; Yongary, Monster from the Deep; and Atlantic Rim episodes]
• Godzilla (1998)
• King Kong (2005)
• Kong: King of the Apes (TV 2016-2018)
• Godzilla: Planet of the Monsters (2017)
• The Cloverfield Paradox (2018)
• Godzilla: City on the Edge of Battle (2018)

ShoutFactoryTV (free)

• Ultraman Leo (TV 1974-1975)
• Elvira’s Movie Macabre (TV 1981-1986) [Gamera: Super Monster episode]
• Gamera: August Ragone (2015)
• Add-on subscription with Amazon Prime Video includes all Showa Gamera films and Gamera: Guardian of the Universe (1995)

Shudder

• The Host (2006)
• Monsters (2010)

Starz (also available through Amazon Channels)

• Godzilla (1954)
• Godzilla Raids Again (1955) [sub]
• Godzilla, King of the Monsters! (1956)
• Rodan (1956) [sub]
• Mothra vs. Godzilla (1964) [sub]
• Ghidorah, the Three-Headed Monster (1964) [sub]
• Invasion of Astro-Monster (1965) [dub]
• The War of the Gargantuas (1966) [international dub]
• Son of Godzilla (1967) [sub]
• Destroy All Monsters (1968) [sub]
• All Monsters Attack (1969) [sub]
• Godzilla vs. Megalon (1973) [dub]
• Godzilla vs. Mechagodzilla (1974) [dub]
• Terror of Mechagodzilla (1975) [dub, no prologue]
• King Kong (1976)

Toku (all subbed except for Ultraman Max)

• Mirrorman (TV 1971-1972)
• Ultraman Leo (TV 1974-1975)
• The Ultraman (TV 1979-1980)
  
• Ultraman 80 (TV 1980-1981)
• Gridman (TV 1993-1994)
• Ultraman Gaia (TV 1998-1999)
• Ultraman Neos (TV 2000-01)
• Ultraman Cosmos (TV 2001-2002)
• Ultraman Nexus (TV 2004-2005)
• Ultraman Max (TV 2005-2006)
• Ultraman Mebius (TV 2006-2007) 
• Ultraman Mebius Side Story: Hikari Saga (2006)
• Ultraseven X (TV 2007)
• Ultra Galaxy Mega Monster Battle (TV 2007-2008)
• Ultraman Mebius Side Story: Armored Darkness (2008)
• Ultra Galaxy Mega Monster Battle: Never Ending Odyssey (TV 2008-2009)
• Ultraman Mebius Side Story: Ghost Reverse (2009)
• Neo Ultra Q (2013)
• Ultraman Ginga (TV 2013)
• Ultraman Ginga S (TV 2014)
• Outerman (2015)
• Ultraman X (TV 2015)
• Ultraman Orb (TV 2016)
• Ultraman Zero: The Chronicles (TV 2017)

Tubi (free)

• Matango (1963) [dub]
  
• Gamera: The Giant Monster (1965) [sub]
• Gamera vs. Barugon (1966) [sub]
• Gamera vs. Gyaos (1967) [sub]
• Gamera vs. Viras (1968) [sub] 
• Gamera vs. Guiron (1969) ["public domain" copy]
• Gamera vs. Jiger (1970)
• Gamera vs. Zigra (1971)
• Gamera: Super Monster (1980)
• The Host (2006)
• Big Man Japan (2007)
• Monster (2008)
• Demeking, the Sea Monster (2009)
• Mega Shark vs. Giant Octopus (2009)
• Mega Shark vs. Crocosaurus (2010)
• Monsters (2010)
• Atlantic Rim (2013)
• Mega Shark vs. Mecha Shark (2014)
• Mega Shark vs. Kolossus (2015)

Vudu (free, but subtitle timing was done by a speed-reader)

• Gamera: The Giant Monster (1965)
• Gamera vs. Barugon (1968)
• Gamera vs. Gyaos (1967)
• Gamera vs. Viras (1968)
• Gamera vs. Guiron (1969)
• Gamera vs. Jiger (1970)
• Gamera vs. Zigra (1971)
• Gamera: Super Monster (1980)
• Monsters: Dark Continent (2014)