--- title: "LINE Mini App Development | OOZOU" description: "Reach customers inside LINE with mini apps that need no download, no install, and no new account." canonical: https://oozou.com/services/line-mini-apps locale: en --- # LINE Mini App Development > Reach customers inside LINE with mini apps that need no download, no install, and no new account. LINE is where your customers already are: 56 million people in Thailand, 97 million in Japan, and 22 million in Taiwan use it to chat, pay, and follow the brands they care about. A LINE Mini App puts your product inside that conversation, with no app store and no sign-up form between a broadcast and a purchase. We design and build LINE Mini Apps end to end on LIFF and the LINE platform: chat commerce, bookings, loyalty, and payments, wired into your official account so every rich menu tap and chatbot reply opens straight into a working product. ## Key Capabilities - **LINE Mini App Development**: End-to-end design and development on LIFF: commerce, booking, loyalty, and content experiences that launch instantly inside LINE on any device. - **Chat Commerce & Official Accounts**: Chatbots, rich menus, quick replies, and flex messages that turn your LINE official account into a storefront with a conversation built in. - **Payments Inside LINE**: Checkout flows with LINE Pay, cards, or your existing payment gateway, so buying finishes in the same chat where it started. - **Platform & Backend Integration**: LINE Login, Messaging API webhooks, and CRM sync that connect LINE identities to your systems, one customer profile across every touchpoint. ## Technologies We Use LIFF (LINE Front-end Framework), LINE Messaging API, LINE Login, LINE Pay, Flex Messages, Rich Menus, LINE Official Account, React, Next.js, TypeScript, Node.js ## Our Approach 1. **Discovery**: We map where LINE fits your customer journey, audit your official account setup, and define what the mini app must do from first broadcast to finished purchase. 2. **Design**: We design the mini app interface and the conversation around it: rich menus, flex messages, and quick replies that lead naturally into the app. 3. **Development**: We build the mini app on LIFF with React and TypeScript, alongside the chatbot logic and Messaging API webhooks behind your official account. 4. **Integration**: We connect LINE Login, payments, and your CRM or backend so every LINE user maps to a single customer profile across your systems. 5. **Review & Launch**: We prepare the submission, take the app through LINE's review process, and launch it to your followers through rich menus and broadcasts. 6. **Growth**: Post-launch we track the journey from message to checkout, tune broadcasts and menus, and extend the app as your audience grows. ## Budgets of All Sizes We work with budgets across the full range. The team adapts scope, size, and engagement model to what you can spend, without lowering the bar on how we build. - **Enterprise**: Full delivery teams for complex platforms, with the security, compliance, and process rigor large organizations expect. - **Growing Teams**: Flexible engagements that scale with you. Add capacity when you need it, scale back when you don't, without renegotiating from scratch. - **Small Business & Startups**: Lean, focused builds that get the essentials right. We help you trim scope, not quality, so a modest budget still ships a solid product. ## Why This Matters - **Instant Access, Zero Installs**: Customers open your product straight from a chat, with LINE Login handling identity. No app store, no download, no sign-up form. - **One Unbroken Journey**: Marketing, conversation, and checkout happen in a single LINE thread, so campaigns convert without handing customers to a browser. - **A Channel You Own**: Every customer who opens the app becomes a follower you can message again, with broadcasts that open straight into the mini app instead of linking away from it. - **Platform Expertise**: LIFF, the Messaging API, flex messages, and the review process form a stack of their own. We have designed, shipped, and supported production apps on it. ## Try our LINE Mini App demo CRAFT&CO is a fictional furniture brand we built a complete LINE experience for: an official account chat with quick replies and a rich menu, a mini app product catalog, and showroom booking confirmed with flex messages, all inside a simulated phone. Explore it the way a customer would. - **CRAFT&CO** (https://lineminiapp.demo.oozou.io): An e-commerce mini app in a simulated LINE chat: talk to the official account, browse the catalog, and book a showroom visit. ## Frequently Asked Questions ### What is a LINE Mini App? An app that runs inside LINE, so customers use it with no download, no install, and no new account. For businesses in Thailand and Japan, where LINE is the default messaging app, it removes the biggest barrier to adoption. ### What can OOZOU build inside LINE? Booking, loyalty, ordering, and payments with LINE Pay, built with LIFF, the LINE Messaging API, LINE Login, Flex Messages, and Rich Menus, all connected to your backend. ### Why build a LINE Mini App instead of a native app? Reach. Most of Thailand is already on LINE every day, and a mini app meets customers there instead of asking them to install something new. Native apps still make sense for deep functionality; many brands run both. ### Can a LINE Mini App connect to our existing systems? Yes. We build mini apps on React, Next.js, and Node.js and integrate them with your CRM, inventory, booking, or ordering systems through APIs. ## Related All services: [Services](https://oozou.com/services) ([markdown](https://oozou.com/services.md)). Case studies: [Case Studies](https://oozou.com/case-studies) ([markdown](https://oozou.com/case-studies.md)). --- Contact OOZOU: hello@oozou.com · +66 2544 0000 · https://oozou.com/contact More for AI agents: https://oozou.com/llms.txt · every page has a markdown twin at its URL plus ".md"