Best AI Tools in Japan
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Compare the Top AI Tools in Japan as of October 2025
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What are AI Tools in Japan?
AI tools are software tools that utilize artificial intelligence to perform a variety of functions. They can be used to automate tasks, provide data-driven insights, and help streamline processes. AI tools can be applied across many different industries and applications, from healthcare to finance. By leveraging the power of machine learning and natural language processing, AI tools can help improve the efficiency of existing operations. Compare and read user reviews of the best AI Tools in Japan currently available using the table below. This list is updated regularly.
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1
Arc
The Browser Company
Arc is a web browser, but more importantly, it’s everything you care about, all in one place. Despite the ways our internet use has evolved, the browser has remained relatively unchanged. While all of our other software tools are changing for the better—with more collaborative features, flexible interfaces, and powerful functionality—the browser largely still does what it did twenty-five years ago. What’s more, we blame ourselves for the browser’s shortcomings. When our browser has an overwhelming number of tabs, we call ourselves inefficient; when we get distracted online, we tell ourselves we need more discipline; when we can’t find a url, we think we’re disorganized. Why does the browser get a free pass? That’s why we’re building a new browser, which we call Arc, because we believe browsers can do so much more to empower us. We’re imagining a browser that can think as quickly as we do, take work off of our plates, and pull our creativity forward.Starting Price: Free -
2
Opera One
Opera Software
Opera One is the latest version of Opera Browser, incorporating a completely redesigned look and new functionality. With new features like Tab Islands and the browser’s modular design, Opera One adapts to your browsing to provide more space, intuitive navigation and smooth interaction with your browser. Opera One introduces Tab Islands, an easy way to arrange tabs in separate groups. And with its multithreaded compositor and modular design, Opera One delivers the most forward-thinking browsing experience to date. Opera’s native AI, Aria, is fully integrated in Opera Browser, both on desktop and in Opera for Android. With live access to the web, Aria greatly expands your capabilities with AI. Opera One’s modular design makes room for new features and integrated AI tools as they become available.Starting Price: Free -
3
Brave Leo
Brave Software
The smart AI assistant built right in your browser. Ask questions, get answers, with unparalleled privacy. Chat with Leo about any webpage. Ask questions, get answers. Without leaving the page. Leo doesn’t record or share chats, or use them for model training. No account or login required. Just open and chat. Privately. Ask Leo to summarize a webpage you’re viewing. Or ask questions about the page, and get answers, clarifications, and other viewpoints. Brave Leo can also create content, translate between different languages, and transcribe audio and video. It can even have back-and-forth conversations. Brave Leo is currently available in the Brave browser for desktop (macOS, Windows and Linux). Leo will be available on the Brave browser for mobile (Android and iOS) very soon.Starting Price: Free -
4
Opera Air
Opera
Opera Air is a unique browser designed with mindfulness at its core, aiming to reduce stress and improve focus during browsing. It features built-in tools like guided meditations, breathing exercises, and neck stretches, promoting well-being while users browse. Opera Air also integrates AI-driven features like Aria, a built-in assistant offering chat, image generation, and voice output. Additionally, it includes an ad blocker and free VPN to eliminate distractions and safeguard privacy, helping users maintain a calm, productive environment while online.Starting Price: Free -
5
Sigma AI Browser
SigmaBrowser OÜ
Sigma AI Browser is an innovative solution for web surfing. It allows people to chat with AI, generate images, summarize articles - for free. All In one Browser This integrated artificial intelligence allows users to chat with an AI assistant or generate content, bringing new capabilities to the browsing experience and revolutionizing how we interact with the web.
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