Best Online Casinos in Japan – Updated April 2025
Terms & Conditions apply · Play responsibly
King Billy Casino
250 free spins with your first deposits and massive bonuses up to $2,500!
- ✓ Japanese players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play directly in your browser – No software installation needed
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- Live Casino · Play against real croupiers at King Billy Casino
- Tested and certified by Casino Bonus Center · Rating: 4.4/5
- 87 Game Providers: Games Global, Yggdrasil Gaming, Booming Games, Play n GO, Relax Gaming, Peter and Sons, TVbet, Spinomenal, NorthernLights Gaming, Lucky Slots, Belatra Games, Eurasian Gaming, and others.
Terms & Conditions apply · Play responsibly
InterCasino
$900 welcome bonus plus 110 free spins on different games!
- ✓ Japanese players are accepted
- ✓ Play directly in your browser – No software installation needed
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- Live Casino · Play against real croupiers at InterCasino
- Tested and certified by Casino Bonus Center · Rating: 3.1/5
- 13 Game Providers: NetEnt, BetSoft, Games Global, NextGen Gaming, QuickSpin, Yggdrasil Gaming, IGT Interactive, Pragmatic Play, Thunderkick, Leander Games, Evolution Gaming, Play n GO, and Realistic Games
Terms & Conditions apply · Play responsibly
SnatchCasino
Where every spin combines beach leisure with gangster thrills!
- ✓ 50 free spins · No deposit required
- Bonus Code: CBC50FS
- ✓ Japanese players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play directly in your browser – No software installation needed
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- Live Casino · Play against real croupiers at SnatchCasino
- ✓ Online sports betting
- Tested and certified by Casino Bonus Center · Rating: 4.1/5
- 80 Game Providers: Play n GO, Ezugi, Triple PG, OneTouch, Push Gaming, Hacksaw Gaming, Yggdrasil Gaming, Evoplay, Evolution Gaming, NetEnt, Fugaso, PG Soft, and others.
Terms & Conditions apply · Play responsibly
bitStarz
Claim 180 Free Spins, Up to ¥50,000 in Bonuses + 20 no-deposit free spins!
- ✓ 20 free spins · No deposit required
- ✓ Japanese players are accepted
- ✓ Exclusive biggest bonuses for Japanese players
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play directly in your browser – No software installation needed
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- Live Casino · Play against real croupiers at bitStarz
- Over $18,036,310 in Jackpots by Games Global
- Tested and certified by Casino Bonus Center · Rating: 4.6/5
- 91 Game Providers: BitStarz Originals, Slotopia, Big Time Gaming, Playson, Boomerang Studios, NetEnt, Blue Guru Games, Playtech, VIVO Gaming, Gaming Corps, Booongo, Onlyplay, and others.
Terms & Conditions apply · Play responsibly
Zodiac Casino
80チャンスは億万長者になるために!
- ✓ Japanese players are accepted
- Accepts Bitcoin and other cryptocurrencies
- ✓ Play directly in your browser – No software installation needed
- ✓ Downloadable games are also available
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- Live Casino · Play against real croupiers at Zodiac Casino
- Over $9,964,863 in Progressive Jackpots
- Tested and certified by Casino Bonus Center · Rating: 4.6/5
- 39 Game Providers: Just for the Win, Area Vegas, SlingShot, Stormcraft, Blue Ring Studios, Snowborn Games, Triple Edge, Infinity Dragon, All For One, Ino Games, Real Dealer Studios, Barstruck, and others.
Terms & Conditions apply · Play responsibly
Casumo
Amazing bonuses and daily video slots tournaments!
- ✓ Japanese players are accepted
- ✓ Play directly in your browser – No software installation needed
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- Live Casino · Play against real croupiers at Casumo
- ✓ Online sports betting
- Tested and certified by Casino Bonus Center · Rating: 4/5
- 35 Game Providers: Merkur Gaming, IGT Interactive, Red Tiger, Thunderkick, Games Global, Playtech, ELK Studios, Slingo Originals, NYX Interactive, Bally Interactive, QuickSpin, Fortune Factory, and others.
Terms & Conditions apply · Play responsibly
888Casino
Get up to $1,000 in bonus with your first deposit
- ✓ 1 free spin · No deposit required
- ✓ Japanese players are accepted
- ✓ Play directly in your browser – No software installation needed
- ✓ Downloadable games are also available
- ✓ Games for mobile devices · Play casino games on your smartphone or tablet
- Live Casino · Play against real croupiers at 888Casino
- ✓ Online sports betting
- ✓ Play poker online at 888Casino – Online poker room
- Tested and certified by Casino Bonus Center · Rating: 4.9/5
- 26 Game Providers: Playtech, Section8, NetEnt, Williams Interactive, Big Time Gaming, Play n GO, Wizard Games, Electracade, GTECH G2, Amaya Cryptologic, GTS, Pragmatic Play, and others.
Top 10 Online Casinos in Japan (April 2025)
Expert-Rated Real Money Casinos with Top Bonuses
Looking for the best online casinos in Japan? Our expert team has tested and reviewed hundreds of real money gambling sites to bring you the top 10 choices for April 2025. bitStarz, Zodiac Casino, and King Billy Casino lead our rankings, standing out for their extensive selection of high-paying slots, immersive live dealer tables, exclusive bonuses, and lightning-fast payouts.
Browse our expert-ranked list below and claim your exclusive welcome bonus today!
| Online Casinos Japan | Welcome Bonus |
|---|---|
bitStarz | Bonus of 100% up to ¥10,000 and 180 free spins |
Zodiac Casino | 80 free spins |
King Billy Casino | Bonus of 100% up to $500 and 100 free spins |
SnatchCasino | Bonus of 200% up to €1,000 and 100 free spins |
Casumo | Bonus of 100% up to $400 |
InterCasino | Bonus of 100% up to $300 and 100 free spins |
888Casino | Bonus of 100% up to $1,000 |
Betsson | Bonus of 100% up to $100 and 50 free spins |
betsafe | Bonus of 100% up to $200 and 200 free spins |
Grand Mondial | 150 free spins |
* Terms & Conditions Apply · Play responsibly
With nearly two decades of experience in the industry, CasinoBonusCenter.com has been analyzing and comparing online casinos since 2006. Our dedicated team of professionals has handpicked the most trusted casinos for Japanese players to ensure you get the biggest sign-up bonuses, top-tier games, and the most rewarding loyalty programs.
Welcome to Casino Bonus Center
Established in 2006, CasinoBonusCenter.com is one of the longest-running and most trusted casino review and bonus portals online. With nearly two decades of expertise, it has become a leading source for reliable and comprehensive online gambling information. Offering accurate expert ratings, exclusive casino bonuses, and detailed reviews of hundreds of online casinos, Casino Bonus Center empowers players—whether playing for fun or real money—to make informed decisions and elevate their gaming experience.
Explore Online Casinos for Japanese players
Dive into our carefully selected library featuring 140 online casinos available in Japan. Each review is crafted with expertise, offering insights into game quality, bonuses and promotions, casino reliability, and user experience. Make an informed choice and play your favorite casino games, either for free or with real money stakes.
No-Deposit Casino Bonuses
Looking for a risk-free start? Check out our comprehensive list of no-deposit bonuses. From free spins to free money to play with, our very popular No-deposit-required Chart of Bonuses provides a variety of options tailored for Japanese players. Experience the thrill of online casinos without opening your wallet, and if luck is on your side, keep your winnings!
Best Welcome Bonuses
Ready to elevate your gaming? Our directory is filled with the most lucrative welcome bonuses for Japanese players, offering over $93,300 in bonuses and thousands of free spins for your first deposits. Don’t miss out on these exclusive offers! Trust our expert reviews to guide you to the best deals and premium online casinos today.
April 2025's Featured Casinos in Japan
Discover top-rated online casinos with the best offers this month. Our curated list ensures you access the most generous promotions and trusted casinos. From exclusive welcome packages to exciting no deposit offers, start your gaming journey with the finest online casino bonuses available in Japan.
Top-Rated Casino Bonuses in Japan
Join Us at Casino Bonus Center
Begin your adventure at Casino Bonus Center where trust and expert guidance meet the excitement of online gambling. Browse our favorites, pick your next destination, and let the games begin!
