Based in Japan
Okamoto Takashi
Freelance Web & AI Developer
I build web apps and AI tools for Japan's travel and hospitality sector — helping international visitors explore, and local hosts operate. Father of three, fish keeper, and camping enthusiast who knows Japan's outdoors firsthand.
What I build
- Web Applications
Homepages, SaaS products, booking systems, inventory & warehouse management — scalable apps built with Next.js, TypeScript, and Supabase.
Next.jsTypeScriptSupabaseFirebaseTailwind CSSMantinePythonGoogle Apps Script - AI Feature Integration
LINE chatbots, AI recommendation engines, conversational UIs — practical AI wired into your product.
ClaudeGeminiOpenAILINE Messaging API - Multilingual Sites
Full EN/JA/VI sites with i18n routing and content management. I've shipped this — I know the pitfalls.
next-intl日本語EnglishTiếng Việt
Projects
travel2jp.jpInternational travellersAI trip planner for Japan
Live. Day-by-day itineraries for independent travellers — campsites, onsen, scenic drives, michi-no-eki. Beyond Tokyo, Kyoto, and the tourist trail.
jpcamp.jpJapanese domestic travellersJapan camping guide
Live. Curated campsite listings for domestic Japanese travellers. Hand-picked, not scraped — searchable by region, season, and facilities.
- tabiplan.jpJapanese domestic travellers
Japan travel planning service
Personalised trip plans for domestic Japanese travel. Enter your destination, dates, and travel style to get a tailored itinerary.
tanto-ai.jpTikTok channel operatorsPost TikTok videos without filming
Live. Fully automated AI channel builder — generates scripts, images, and voiceovers, edits the video, and publishes to TikTok with a single click. Supports multi-account management.
Client Work
Pricing (guide)
- Web Application Development¥300,000+ / per project
- AI Feature Integration¥50,000+ / per month
- Multilingual Site Build¥400,000+ / per project
Final pricing depends on scope. Free initial consultation.
Work with me
Building a web app, adding AI features, or launching a multilingual site? I'd love to hear about it — I reply within a day.
Get in touch