Are Global Platforms Enough to Reach Japan? A Closer Look at OTT and CTV in Japan

Japan's video advertising market hit a structural turning point in 2025. For the first time, internet advertising exceeded 50% of Japan's total ad spend, with video advertising alone crossing the ¥1 trillion mark ($6.85 billion USD). In such a high-stakes market, the biggest risk for global brands is assuming that "global reach" equals "local impact."

While giants like YouTube, Netflix, and Amazon Prime command significant numbers, relying on them alone misses the deeply rooted viewing culture and consumer behaviors unique to the Japanese market. To truly capture this ¥1 trillion opportunity without leaving massive audience segments behind, advertisers must look beyond global standards. This article explains why…

Table of Contents

• The "Free TV" Legacy: Why Japan is Different from the West
• From Commutes to Catch-ups: The Cultural Drivers of Japan's Digital Video Boom
• The Numbers Behind Japan's CTV and Video Advertising Boom
• The Reach Gap: Why Relying on Global Giants Leaves Millions of Japanese Viewers Behind
• Meet the Local Giants: How TVer and ABEMA Mastered the Art of "Cultural Sync"
• Global Vision, Local Expertise: How Boundless Can Help
• Frequently Asked Questions

The "Free TV" Legacy: Why Japan is Different from the West

To understand Japan's OTT landscape, start with one key difference from the U.S.: Japan's television market has been built almost entirely on free-to-air commercial broadcasting. Unlike many Western markets where paid cable is the norm, Japan's television culture is built on free-to-air broadcasting funded by advertising.

That expectation carried directly into the streaming era. Japanese audiences show a preference for free, ad-supported platforms over paid subscriptions — and the platforms they use most tend to reflect that preference. For advertisers, this matters: the largest audiences in Japan's OTT market are found predominantly on platforms with ad inventory.

From Commutes to Catch-ups: The Cultural Drivers of Japan's Digital Video Boom

Have you ever wondered how Japan's unique daily commute shapes its media habits? Two major shifts are currently redefining how local audiences consume video, and both create opportunities for advertisers.

The first is catch-up viewing. Watching a missed broadcast on demand is now a normal part of everyday life in Japan. Audiences expect to access programming on their own schedule, not the broadcaster's. There is also a strong cultural tendency toward "shared viewing," where people want to stay updated with the same hits that everyone else is talking about. This shift — driven by the need to stay in sync with time-sensitive cultural trends — is what created TVer, and has since turned on-demand OTT into one of the fastest-growing advertising channels in the market.

The second is mobile video during commutes. Workers in Japan's major urban areas face some of the world's longest average commutes — averaging 1 hour 35 minutes in Tokyo. Japan also has over 100 million mobile internet users, and its mobile networks are generally reliable and stable. The daily commute has become a built-in window for video consumption — a structural feature of Japanese consumer behavior that shapes the entire OTT market.

The Numbers Behind Japan's CTV and Video Advertising Boom

Dentsu's 2025 Japan Advertising Expenditures report, published in March 2026, puts the scale of the shift in sharp relief:

• Japan's total ad spend reached ¥8.0623 trillion (approx. $53.7 billion USD) in 2025 — a record high for the fourth consecutive year.
• Internet advertising hit ¥4.0459 trillion (approx. $27.0 billion USD), surpassing 50% of total ad spend for the first time.
• Video advertising reached ¥1.0275 trillion ($6.85 billion USD) — exceeding ¥1 trillion for the first time, up 21.8% year-on-year.
• CTV-specific video ad spend reached ¥129.5 billion ($863 million USD) in 2025, up 127% year-on-year, and is projected to reach ¥244.5 billion ($1.63 billion USD) by 2029.
• Traditional TV media advertising (terrestrial + satellite), by contrast, was essentially flat year-on-year at ¥1.7556 trillion (approx. $11.7 billion USD) — down 0.3%.

_{Source: Dentsu, 2025 Japan Advertising Expenditures / Dentsu, 2025 Japan Internet Ad Media Analysis / CyberAgent & Digital InFact, 2025 Japan Video Ad Market Survey}

The contrast is striking: traditional television flat, digital video surging. CTV is where those two worlds meet, and Japan's advertisers are already moving their budgets there.

The Reach Gap: Why Relying on Global Giants Leaves Millions of Japanese Viewers Behind

If your current media plan centers on YouTube, Netflix, and Amazon Prime, you've built a strong foundation. However, in Japan, relying solely on these means you might be missing a massive, highly engaged portion of the market.

Netflix has approximately 10 million subscribers in Japan, and Amazon Prime Video has approximately 19.3 million — meaningful numbers, but still a fraction of the total video audience.

The missing piece is Japan's unique "Free TV" culture. Global SVODs lack the breadth of broadcaster-produced dramas, real-time variety shows, and scheduled live events that define mainstream Japanese television.

In Japan, the most-watched, professional content sits outside of global ecosystems. This is rooted in a long-standing habit where audiences expect to watch high-quality, familiar programming for free — funded by advertising. There is also a strong cultural tendency toward "shared viewing," where people want to watch the same real-time hits that everyone else is talking about.

As a result, while global platforms play a supporting role, a strategy anchored in them will miss the massive, highly engaged audiences found on local leaders. To truly fill this gap, you must look at the platforms that dominate Japan's local landscape: TVer and ABEMA.

Meet the Local Giants: How TVer and ABEMA Mastered the Art of "Cultural Sync"

TVer — Japan's Official Broadcaster Catch-Up Platform

If you want to reach mainstream Japanese audiences at scale, TVer is unavoidable.

TVer is the free, ad-supported catch-up service run jointly by Japan's five major commercial broadcasters. Its growth in recent years has been exceptional:

• 44.7 million monthly unique browsers (MUB) as of January 2026 — up 14% year-on-year
• 630 million monthly video plays
• CTV accounts for 38.6% as a viewing device. Key drivers include the adoption of dedicated TVer buttons on major TV manufacturer remote controls, and the growth of CTV viewing for live events such as the Paris 2024 Olympics
• Proprietary ad revenue grew 221% in fiscal year 2024

_{Source: TVer Press Release, Mar 2026, TVer Fact Book 2025}
 

With those numbers, TVer is not a niche catch-up app. It is one of the largest streaming platforms in Japan by active users — ahead of several global SVOD services. More importantly, it reflects the natural extension of traditional TV viewing behavior: free, familiar, and widely shared content delivered on-demand.

For advertisers, it is also the most direct route to broadcast-loyal audiences who have simply moved their viewing online — many of whom are less reachable through global platforms alone.

ABEMA — Original Content, Live Sports, and Precision Targeting

If TVer represents the digital version of traditional TV, ABEMA shows where younger audiences are going instead.

ABEMA, operated by CyberAgent and TV Asahi, takes a different approach. With over 40 channels available 24/7 — spanning original programming, live news, sports, and anime — it attracts audiences who don't heavily overlap with traditional TV viewers.

• 28.47 million weekly active users (WAU) as of September 2025
• Growing CTV Presence: With dedicated buttons on major TV remotes, ABEMA has become a living-room staple, driving its expansion across devices.
• Increasing Ad Trust: In FY2025, the advertiser base grew to 1,000 brands (up 18.6% YoY), signaling its rising status as a must-buy channel.
• ABEMA Premium is also available as a paid SVOD tier for viewers seeking an ad-free experience.

_{Source: CyberAgent, Media & IP Business Report / CyberAgent Inc., Investor Relations Materials}
 

While TVer captures the traditional base, ABEMA reaches younger, entertainment-driven segments that global subscription platforms often miss.

Together, TVer and ABEMA capture the premium audience gaps global platforms miss, combining mass-scale reach with incremental reach across different viewer segments.

So, how can you bridge this gap without complicating your strategy? It's about finding the right balance between global scale and local relevance.

In practice:

• Global platforms = scale, but incomplete in Japan
• TVer = broadcast-scale reach in digital
• ABEMA = incremental reach, especially among younger audiences

Global Vision, Local Expertise: How Boundless Can Help

One of the biggest challenges for global advertisers is not just understanding Japan's media landscape — but accessing it effectively.

Platform relationships, ad formats, creative requirements, and local buying processes all differ from what global advertisers are used to.

One capability that sets Japan's digital advertising ecosystem apart is LY Ads — the platform formed in April 2026 by the integration of Yahoo! JAPAN Ads and LINE Ads under LY Corporation. With over 100 million users across Yahoo! JAPAN and LINE combined, LY Ads makes it possible to bridge CTV brand awareness with mobile-level action: a brand can reach a Japanese viewer on TVer or ABEMA, then retarget that same user on their LINE app or in Yahoo! JAPAN search results later. This cross-device, full-funnel capability is unique to Japan and directly relevant to any advertiser investing in the CTV and OTT channels described in this article.

Boundless is the official overseas media representative for LY Ads — with direct access to Japan's leading digital advertising platforms and a multilingual team that bridges the gap between global brands and the local market. If you're mapping out a Japan CTV advertising strategy, we can help you understand where the opportunity is and how to activate it.

Want to connect your CTV brand awareness with mobile action on LINE? Let's talk about integrated strategies for the Japanese market. Contact us HERE.

Frequently Asked Questions

Which streaming platforms should global advertisers prioritize in Japan?
TVer and ABEMA are two of the most important platforms for reaching Japanese audiences, particularly because they capture the premium, ad-supported viewing that global platforms often miss. TVer carries broadcaster-produced dramas, variety shows, and sports — the content Japanese audiences are most loyal to — across 44.7 million monthly users. ABEMA complements it with original programming, live sports, and anime. Both are free and ad-supported, which aligns with Japan's media culture. (Note: ABEMA Premium is also available as a paid SVOD service.)

How does Japanese consumer behavior around video differ from Western markets?
Three factors stand out: a strong expectation of free content (commercial TV has always been free in Japan), high mobile video consumption driven by long urban commutes, and a mainstream catch-up viewing habit that makes on-demand platforms a core part of everyday TV watching. A Japan video strategy needs to account for all three — spanning mobile and CTV, live and on-demand.

Can global advertisers rely on Netflix or YouTube alone to reach Japanese audiences?
Not effectively. While global giants offer scale, they often miss the daily "catch-up" and live viewing cycles that drive national conversation in Japan. Subscription-based platforms also lack reach among the vast audience that prioritizes premium, free-access media. To align with the professional, real-time hits Japanese viewers actively choose — and to capture the millions unreachable by global services alone — local leaders like TVer and ABEMA are essential.

References

Dentsu: 2025 Japan Advertising Expenditures (March 2026)
TVer Inc.: Monthly Users Report, January 2026
Sensor Tower: Japan Film & Television Category Analysis, Q1 2025
Adjust: CTV Measurement Partnership with ABEMA
CarterJMRN: Japan Streaming Market Report, March 2026
Statistics Bureau of Japan: Social Survey Data (e-Stat)
LY Corporation: LY Ads Official Documentation (April 2026)