Quick Answer
Gate Keepers is streaming on Crunchyroll. 24 episodes (~10h total watch time). Availability may vary by region.
Where to Watch Gate Keepers
Gate Keepers is currently on Crunchyroll. Keep in mind that catalogs change by region — if you don't see it on your usual service, check the other platforms listed here.
Confirmed Streaming Platforms
Subscription availability by JustWatch
Check Other Platforms
Anime licensing changes by region. If Gate Keepersisn't on your usual service, try these.
About Gate Keepers
Technology, science, and industry—this is 1969 Tokyo, and there is no better time to be alive! But a shadow looms quietly around every corner: "Invaders" have infiltrated the populace, and nobody knows who or what they are. Only the members of the top-secret agency AEGIS know of their existence. Covertly fighting the enemy is their job, but only those with the ability to open "Gates" to another world can truly defeat them. Within AEGIS is a specialized task force known as the "Gate Keepers."...
Full details on MyAnimePulseFrequently Asked Questions
Where can I watch Gate Keepers legally?
Right now, Gate Keepers is on Crunchyroll. That said, anime licensing varies a lot by country — what's on Netflix in Japan might not be on Netflix in the US. If your go-to platform doesn't have it, try the other services listed above.
Is Gate Keepers on Netflix or Crunchyroll?
It's confirmed on Crunchyroll. Netflix availability depends on your region — some countries have it, others don't.
Is Gate Keepers available with an English dub?
Dub availability depends on the platform. Crunchyroll has been expanding their dubbed library a lot recently, and Funimation (now merged into Crunchyroll) historically had the biggest dub catalog. Check each platform's listing for Gate Keepers.
Can I watch Gate Keepers for free?
Crunchyroll offers a free ad-supported tier for some shows. Most other platforms require a subscription, but many offer free trials for new users. Tubi and Pluto TV occasionally have anime in their free rotation too.