Appwrite

Appwrite is an open-source Backend-as-a-Service (BaaS) that provides a complete backend layer for web, mobile, and Flutter applications. It offers a unified API and SDKs for common backend needs such as authentication, databases, file storage, serverless functions, and realtime events.

Key Features

• Authentication with multiple providers (email/password, OAuth2 providers) and session management
• Databases with document collections, indexes, querying, and granular permissions/roles
• File Storage with buckets, upload/download APIs, and access control
• Serverless Functions to run backend logic on events or via HTTP execution
• Realtime subscriptions for database and other events
• Teams, roles, and permissions model for multi-user and multi-tenant apps
• Webhooks and event system to integrate with external services
• SDKs for multiple platforms (web/Node.js, Flutter, and others) and REST API
• Console (web UI) for project administration and monitoring of resources

Use Cases

• Build Firebase-like backends for mobile and web apps with local control
• Add authentication, file uploads, and data APIs to internal tools quickly
• Implement event-driven workflows (e.g., image processing on upload) with functions and webhooks

Limitations and Considerations

• Functions runtime and scaling characteristics depend on deployment configuration and container resources
• Feature parity with managed BaaS platforms can vary (some advanced managed integrations may require extra setup)

Appwrite is well-suited for teams that want an integrated backend platform with strong developer ergonomics and broad SDK support. Its modular services (Auth/DB/Storage/Functions/Realtime) make it practical for both MVPs and production applications where consistent APIs and permissions are required.