With more and more people playing online casinos in Japan, players always want to play at popular online casinos that are ranked high in オンラインカジノ ランキング(online casino rankings) .

This page is the result of a survey of the 日本のオンラインカジノ.com (known as JOC), conducted by our team of professional and knowledgeable editors. We have researched the popular online casino rankings available to play from Japan, as well as the factors related to these rankings.

Players can feel confident in their choice because all of the online casinos here are licensed. Players will be able to enjoy playing with security.

Ranking of the best online casinos (By JOC)

BONS CASINO

While new casinos come and go, this Bons Casino (ボンズカジノ 評判) has solidified its position as one of Japan’s top online casinos.

It is a stable and popular casino brand and an indispensable part of the online casino rankings/オンラインカジノ ランキング.

BONS Casino features a diverse game lineup and generous bonuses.

Players can enjoy as many as 3,000 different slots, table games, and live casino games. The casino also offers a wide variety of options tailored to players’ needs.

With an excellent reputation for Japanese-language support, Bonds Casino places a high priority on making players feel comfortable and at ease. Japanese-speaking staff members are always present and ready to answer your questions at a moment’s notice.

A reliable brand with a license issued by the Curaçao government, it offers table games such as baccarat as well as betting on horse racing in its sports betting section.

It is a multi-site, covering both casino and sports betting.

The company’s approach takes advantage of its abundant financial resources through the operation of a major corporation.

We recommend this online casino for its efforts to attract players in many areas, including high bonuses, no deposit required bonuses, and a marketing strategy that uses popular Japanese YouTube stars to attract players.

– High value bonuses

– Accepts several types of credit and debit cards

– Many deposit methods including e-wallets, virtual currency, etc.

– Abundant cash reserves

– Operates other casinos in the Bonds family

Casino Sky

Casino Sky/カジノスカイ is a new online casino that opened in September 2023 and accepts virtual currency.

It was launched as a sister casino to Cajitabi and Casino me and quickly grew to become the top online casino in the Japanese market.

This very popular online casino has a brand mark of paper airplanes made of  Trump cards, which makes casino games fun.

The Curacao license makes it highly reliable and the availability of crypto coins makes it a popular choice.

Cryptocurrency allows for fast deposits and withdrawals, allowing you to play 24 hours a day, 7 days a week.

An added bonus is that there are no withdrawal fees.

Casino Sky waives all withdrawal fees, making it easy to withdraw your winnings.

The fact that the game can be played in Japanese yen, with no exchange fees, is another reason for the popularity of the game among Japanese players.

You can deposit from domestic banks, there are no fees for deposits and withdrawals, and you can use JPY/yen, making it a brand that promises comfortable online casino play.

The Japanese Yen (JPY) display makes easy to understand  play, even for casino beginners. The big welcome bonus and cash back bonus are also not to be missed.

– Secure Curacao License

– 2000 different casino games offered

– Full range of slots and live casino games

– Japanese Yen accepted

– Japanese language support available

RAMENBET CASINO

Ramen Bet/ラーメンベットカジノ is operated by the same company as that Bons Casino.

With its large financial resources, it offers the best bonuses and features an easy-to-use design for Japanese players.

The use of ramen, a favorite of the Japanese, in the logo makes the name more familiar and unforgettable once seen.

It is a delicious concept that puts forth the idea of eating ramen and playing at a Ramenbet casino.

Another reason for the casino’s high reputation is that it offers tournament matchups, a favorite of Japanese players, and is different from other online casinos in that it allows players to enjoy playing against other players.

Tournaments are held on a regular basis, so check back often for opportunities to participate and win jackpots.

Not only can you aim for a prize as part of a promotion, but you can also enjoy a different kind of fun from your regular casino games.

When it comes to jackpots, you can win big prizes, so this is a great option for those who want to win big prizes in an instant.

– Curacao License

– Deposit and withdraw via bank as Paypay casino.

– Customer support with Japanese language support

– Proprietary tournaments available

– Top ranked online casino site

CASINO SECRET

Casino Secret/カジノシークレット is an online casino that has won the hearts of players with its cash back bonus offers.

It is also committed to protecting anonymity and safeguarding players’ personal information. offers high quality games and innovative promotions.

When you open the official Casino Secrets website, you will immediately notice its ease of use.

The easy to find and search functionality of the site is a must for players to find their favorite games.

Although it does not handle sports bets, Casino Secret is the official gaming partner of the popular AS Monaco soccer team and is recognized as a reliable online casino.

The team includes Takumi Minamino, a member of Japan’s national team, who is popular not only with soccer fans but also with many young people.

– Cashback Bonus

– AS Monaco Official Partner

– High Reliability

– VeraJohn Casino Casino Group

MIKI CASINO

We have never seen such a cute image character!

MIKI Casino（MIKIカジノ） offers an easy-to-use platform for Japanese players.

It is a new online casino created by one of the major casino companie, and of course, it offers Japanese-language support and a wide range of bonuses for players.

We at Japan-online-casino.com（日本のオンラインカジノ.com） spoke with a representative of MIKI Casino, who told us that they have improved their image character many times to make it more memorable to Japanese players who love anime and games.

Launched by a staff member with experience at a major sports betting company, MIKI Casino is an online casino that is expected to make even greater strides in sports betting in the future.

– The newest online casino with high expectations

– Over 2000 casino games available

– Sports betting available

– Popular with animated characters for Japanese players!

– Site run by Experienced team

Japan-specific deposits method are also available

Deposit and withdrawal methods originating in Japan are available, allowing for safer deposits and withdrawals.

These payment methods are familiar to Japanese people, and since they use these methods on a regular basis, they can complete payments smoothly.

For example, Paypay and JCB cards, these payment methods are used by Japanese as a secure means of payment, but it is important to understand the characteristics of each.

Paypay

PAYPY is an electronic money service using smartphones and mobile devices. You can easily deposit money through the application when shopping, etc. You can also deposit money to online casinos through the paypay bank with which we have a partnership.

It is widely used in Japan, is highly reliable in terms of security, and protects the privacy of users.

It is a convenient smartphone payment method and deposits are completed instantly.

Paypay and JCB cards are also accepted at Bons Casino and RamenBet Casino introduced here.

JCB card

JCB Card is an international credit card that can be used all over the world, even though it is a Japanese credit card.

It is already widely used and highly trusted in Japan and abroad.

You can use for online casino deposits and is a familiar payment method for Japanese people.

The advantage of the JCB card is that it can be used in online casinos around the world. Many casino sites have already begun accepting it, making it as valuable a payment method as the visa card.

Some casinos may charge a fee, but customer support is also located in Japan, so you can rest assured that any problems will be taken care of immediately.

Importance of Japanese-language customer support

Brands that appear in the online casino rankings have Japanese-language customer support.

Its importance is closely related to the characteristics and demands of Japanese players.

Below is a detailed explanation of its importance.

For this reason, customer support in Japanese is very important for Japanese players, and providing adequate Japanese-language support is key to success if you are aiming for a high ranking in the Japanese online casino rankings.

Confirmation of detailed information

Japanese players have the characteristic of wanting to confirm detailed information and conditions. In particular, they want to know detailed information about the terms and conditions of bonuses and promotions, deposit and withdrawal procedures, and game rules.

When Japanese-language support is provided, players can smoothly resolve their questions and concerns.

Most brands of online casinos that are new to the Japanese market and do not offer Japanese-language customer support disappear after a few months.

Safety is a must.

Casinos that offer Japanese-language customer support are considered reliable by players.

Players can use the casino with confidence knowing that support will respond appropriately in Japanese.

Also, if a problem arises, players can expect a quick and accurate response.

Due to cultural backgrounds, support in the native language is an absolute necessity for Japanese players.

When support is available in Japanese, players are more comfortable communicating with each other and can reduce the stress of problems that arise in play!

Clear terms of use

Careful review of terms and conditions Many Japanese players tend to read terms and conditions carefully before registering with a casino.

Terms and conditions contain important information such as bonus conditions and withdrawal limits. Online casinos with good rankings clearly state their terms of use and allow you to quickly resolve any questions you may have.

Guide to Payment Methods

The importance of payment methods in online casinos goes without saying, but the help of customer support is also important when players deposit their own funds and withdraw winnings.

They need to know the steps to take to make deposits and withdrawals smoothly and quickly, as well as convenient payment methods explained in Japanese.

It is important to offer a variety of payment options, such as credit cards, debit cards, e-wallets, and bank transfers in the case of Japan.

We, at JOC, have found that 70% use credit cards, followed by bank transfers and cryptocurrencies.

Furthermore, casinos that charge fees are one of the reasons that keep players away.

If there is a fee for using a particular payment method, they will flow to a site that offers a fee-free method.

If they want to be at the top of the rankings, casinos must consider the needs of their players and offer reliable payment options.

Online casinos that innovate are ranked

The online casino industry in Japan continues to change, with rankings constantly fluctuating. These changes are driven by a variety of factors, including the emergence of new casinos, improvements to existing casinos, and changes in player demand.

As new online casinos enter the market, changes quickly occur in the online casino rankings.

The Japanese love new things and are always on the lookout for online casinos that they have not yet seen or used.

Leading online casinos always know that their rankings change as existing casinos improve their services and promotions.

In order to meet player demand, casinos introduce new features and special offers to keep their top rankings.

It is important to keep an eye on changes in player demand and to detect trends.

As player demand changes, a casino’s popularity and reputation will fluctuate. A particular game or feature may attract attention, and a casino that emphasizes that element may rank higher.

These factors keep the rankings of online casinos in Japan constantly changing.

It is important for players to check the latest information and choose the best casino for them.

The online casino rankings presented here include only casinos with these factors.