Open Source Convex Alternatives

Supabase gives you a production-ready backend without building one from scratch. It's built on Postgres, which means you get a real relational database with full SQL support, not a proprietary data store you'll eventually outgrow. Every project comes with a suite of services that work together out of the box.

• Authentication handles email/password, magic links, OAuth providers, and row-level security so access rules live in the database itself.
• Auto-generated APIs create REST and GraphQL endpoints directly from your database schema, no manual wiring required.
• Realtime subscriptions let clients listen to database changes over websockets, useful for chat, dashboards, or collaborative tools.
• Edge Functions run TypeScript close to users without managing servers.
• Storage manages files with access policies tied to the same auth system.
• Vector embeddings support AI-powered search and retrieval, stored and queried inside Postgres using pgvector.

The dashboard includes a table editor, SQL editor, and a visual policy builder for row-level security, so you can manage most of your app without leaving the browser. It's aimed at developers who want Firebase-style convenience without giving up SQL or portability.

Compared to alternatives like Appwrite or PocketBase, Supabase leans harder into Postgres as the foundation. That means you can use any Postgres-compatible tool, run raw queries, add extensions, and migrate away if you need to. Self-hosting is supported for teams that need full control over their data.

Supabase holds SOC2 Type 2, HIPAA, and ISO 27001 certifications, which matters for teams building in regulated industries. The free tier is generous enough to prototype and ship small projects without a credit card.

PocketBase is a revolutionary open-source backend solution that simplifies application development by providing a powerful, all-in-one platform. Packaged as a single executable file, it offers a real-time database, authentication system, and file storage, making it an ideal choice for developers seeking efficiency and ease of use.

Key benefits of PocketBase include:

• Simplicity: Get started quickly with minimal setup and configuration.
• Flexibility: Suitable for various project types, from small prototypes to large-scale applications.
• Real-time capabilities: Built-in support for real-time database updates and subscriptions.
• Authentication: Robust user management with multiple auth methods, including email/password and OAuth providers.
• File storage: Integrated file upload and serving functionality.
• Admin UI: User-friendly web interface for managing your application's data and settings.
• API-first design: RESTful and real-time APIs for seamless integration with front-end frameworks.
• Cross-platform: Runs on Windows, macOS, and Linux.
• Extensibility: Expand functionality with hooks and custom API endpoints.

PocketBase empowers developers to build feature-rich applications without the complexity of traditional backend setups. Its lightweight nature and comprehensive feature set make it an excellent choice for both beginners and experienced developers looking to streamline their development process.

Instant is a revolutionary database solution designed for developers building real-time and offline-enabled applications. It simplifies the process of creating collaborative products like Notion or Figma by providing a database that can be subscribed to directly in the browser.

Key features and benefits:

1. Realtime Updates: Instant handles optimistic updates and rollbacks automatically, allowing developers to focus on writing frontend code without worrying about complex backend logic.

2. Multiplayer Support: Built-in infrastructure for collaborative experiences, including live updates across devices and user accounts.

3. Offline Mode: Applications built with Instant work seamlessly offline, with local caching and automatic reconciliation when users come back online.

4. Easy Integration: Developers can write relational queries directly in their app, and Instant takes care of the rest, including servers, auth, permissions, and endpoints.

5. Scalability: Start without a backend and scale to complex use cases as needed. Instant provides an admin SDK for custom backend logic when required.

6. Enhanced User Experience: Easily implement features like shared cursors, typing indicators, and presence information with minimal code.

7. Cross-Platform Compatibility: Works across web and mobile platforms, allowing developers to reuse data logic across different environments.

Instant is backed by Y Combinator and has received praise from industry leaders, including the co-founder of Firebase and engineers from Meta, Stripe, and OpenAI. The team behind Instant consists of senior and staff engineers from Facebook and Airbnb, bringing deep expertise to solve one of the largest problems in frontend development today.

By using Instant, developers can significantly reduce development time and complexity, focusing on building great user experiences rather than dealing with the intricacies of real-time data synchronization and offline support.

Encore revolutionizes backend development by providing a seamless, integrated platform that combines the power of cloud infrastructure with the simplicity of local development. By abstracting away the complexities of distributed systems, Encore allows developers to focus on writing business logic while automatically handling scalability, deployment, and infrastructure management.

Key benefits of Encore include:

• Rapid Development: Write clean, idiomatic Go code without boilerplate, allowing you to build production-ready backends in record time.
• Automatic Infrastructure: Encore generates and manages your cloud infrastructure, eliminating the need for manual configuration and reducing operational overhead.
• Built-in Observability: Gain deep insights into your application's performance with automatically instrumented tracing, logging, and metrics.
• Local-to-Cloud Consistency: Develop and test locally with the same environment as production, ensuring smooth transitions and reducing deployment surprises.
• API-First Approach: Automatically generate API documentation and type-safe clients, improving collaboration between frontend and backend teams.
• Effortless Scaling: Design your application for scale from day one, with Encore handling the complexities of distributed systems and database management.
• Developer-Centric Workflow: Enjoy a streamlined development experience with features like automatic hot reloading, integrated testing, and collaborative debugging.

By choosing Encore, teams can significantly reduce time-to-market, improve code quality, and focus on delivering value to their users instead of wrestling with infrastructure complexities.

BKND is a comprehensive backend solution designed for modern developers who need flexibility without complexity. This lightweight Firebase alternative provides all essential backend services while maintaining the freedom to deploy anywhere.

Core Features:

• Database: Define, query, and control your data with intuitive tools
• Authentication: Implement reliable auth strategies with minimal setup
• Storage & Media: Manage and serve media files effortlessly
• Workflows: Design automated processes with visual workflow builder

Built for Modern Development:

• Edge-optimized - Runs in any JavaScript environment with minimal overhead
• Framework-friendly - Seamless integration with NextJS, Remix, Hono, or standalone deployment
• Web standards foundation - Built on JSON Schema and OAuth/OIDC for maximum interoperability
• Adapter-first approach - Leverage existing infrastructure or extend with custom adapters

The platform offers complete extensibility through its workflow builder, allowing you to inject custom logic into system events. As an open source solution, you maintain full control over your backend while benefiting from community contributions.

Get started instantly with npx bknd@latest run and experience a backend that adapts to your needs, not the other way around.