Realtime syncing makes it easy for your users to access their data from any device, web or mobile, and it helps your users collaborate with one another.
构建无服务器应用
Realtime Database 随附有移动 SDK 和 Web SDK，因此，您无需服务器即可构建应用。此外，您还可以使用 Cloud Functions for Firebase 执行后端代码，对您的数据库触发的事件做出响应。
Realtime Database integrates with Firebase Authentication to provide simple and intuitive authentication for developers. You can use our declarative security model to allow access based on user identity or with pattern matching on your data.
案例研究
Learn how Realtime Database helps teams across the world
STAGE 利用 Firebase 和 Flutter 将发布时间减半
STAGE paired Flutter's front-end tools with Firebase's back-end services to build a multi-platform app. The app's infrastructure securely stores and delivers content to almost 2 million users in realtime for a smooth viewing experience, which helps them stand out in India's competitive streaming market.
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],[],[],[],null,["# Firebase Realtime Database | Store and sync data in realtime\n\n##### Firebase Realtime Database\n\nStore and sync data in realtime\n===============================\n\nData is synced across all clients in realtime, and remains available when your app goes offline.\n------------------------------------------------------------------------------------------------\n\n[Get started](https://console.firebase.google.com/project/_/database/data) [View docs\n*arrow_forward*](/docs/database) \n\n### Realtime syncing for JSON data\n\nRapid data synchronization delivers consistency by updating application instances in real time across all clients. \n[Learn more](/docs/database/rtdb-vs-firestore) \n\n### Collaborate across devices with ease\n\nRealtime syncing makes it easy for your users to access their data from any device, web or mobile, and it helps your users collaborate with one another. \n\n### Build serverless apps\n\nRealtime Database ships with mobile and web SDKs so you can build apps without the need of servers. You can also execute backend code that responds to events triggered by your database using [Cloud Functions for Firebase](/products/functions). \n\n### Optimized for offline use\n\nWhen your users go offline, the Realtime Database SDKs use local cache on the device to serve and store changes. When the device comes online, the local data is automatically synchronized. \n\n### Strong user-based security\n\nRealtime Database integrates with Firebase Authentication to provide simple and intuitive authentication for developers. You can use our declarative security model to allow access based on user identity or with pattern matching on your data. \nCase Studies\n\n### Learn how Realtime Database helps teams across the world\n\n##### STAGE uses Firebase and Flutter to cut release time in half\n\n\nSTAGE paired Flutter's front-end tools with Firebase's back-end services to build a multi-platform app. The app's infrastructure securely stores and delivers content to almost 2 million users in realtime for a smooth viewing experience, which helps them stand out in India's competitive streaming market.\n[Read more\n*arrow_forward*](/case-studies/stage-app) \n\n##### Acintyo uses Firebase to streamline and speed up app development by 25%\n\n\nWith millions of users across 175 countries, the Galarm team used Firebase's fully-managed, scalable infrastructure to accelerate app development, automate tasks, and free up engineering time so they could focus on bringing their ideas to life.\n[Read more\n*arrow_forward*](/case-studies/acintyo-galarm-app) \n\n### Documentation\n\nLearn more about Realtime Database through our documentation. \n[View docs](/docs/database) \n\n### Pricing\n\nLearn more about our No-Cost quotas and usage pricing. \n[View pricing](/pricing) \nTry Firebase today\n\n\nIntegrating it into your app is easy.\n[Get started](https://console.firebase.google.com/) \n\n#### All Firebase products\n\n##### Build\n\n- [App Check](/products/app-check)\n- [App Hosting](/products/app-hosting)\n- [Authentication](/products/auth)\n- [Cloud Functions](/products/functions)\n- [Cloud Storage](/products/storage)\n- [Data Connect](/products/data-connect)\n- [Extensions](/products/extensions)\n- [Firestore](/products/firestore)\n- [Firebase ML](/products/ml)\n- [Genkit](https://genkit.dev/)\n- [Hosting](/products/hosting)\n- [Realtime Database](/products/realtime-database)\n- [Firebase AI Logic client SDKs](/products/firebase-ai-logic)\n\n[Generative AI](/products/generative-ai) \n\n##### Run\n\n- [A/B Testing](/products/ab-testing)\n- [App Distribution](/products/app-distribution)\n- [Cloud Messaging](/products/cloud-messaging)\n- [Crashlytics](/products/crashlytics)\n- [Google Analytics](/products/analytics)\n- [In-App Messaging](/products/in-app-messaging)\n- [Performance Monitoring](/products/performance)\n- [Remote Config](/products/remote-config)\n- [Test Lab](/products/test-lab)"]]
