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Open Source Instant Alternatives

A curated collection of the 6 best open source alternatives to Instant.

The best open source alternative to Instant is Supabase. If that doesn't suit you, we've compiled a ranked list of other open source Instant alternatives to help you find a suitable replacement. Other interesting open source alternatives to Instant are: PocketBase, Convex, Encore, and NHost.

Instant alternatives are mainly Backend-as-a-Service (BaaS) Tools but may also be PaaS & Deployment Tools or Development Environments. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Instant.

Piotr Kulpinski's profile

Written by Piotr Kulpinski

Provides a full backend stack built on Postgres: authentication, auto-generated APIs, edge functions, realtime subscriptions, file storage, and vector search.

Screenshot of Supabase website

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.

A lightweight, self-hosted backend solution with real-time database, authentication, and file storage capabilities.

Screenshot of PocketBase website

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.

Open-source reactive database that keeps your web and mobile apps in sync. Write everything in TypeScript with built-in auth, cron jobs, and AI integration.

Screenshot of Convex website

Build your entire backend in pure TypeScript - from database schemas to queries, authentication to APIs. Your backend code lives alongside your frontend code with full type safety and AI-powered code generation.

Real-time synchronization guaranteed - your app automatically reflects changes to frontend code, backend code, and database state instantly. No need for complex state managers, cache invalidation policies, or manual websocket setup.

Backend essentials built-in - create cron jobs, trigger AI workflows, leverage built-in authentication, and access a growing ecosystem of components that solve common backend needs with simple npm installs.

Developer-friendly features:

  • End-to-end TypeScript with full autocomplete and type checking
  • Reactive queries that update your UI automatically
  • Built-in authentication and user management
  • Scheduled functions and background jobs
  • AI tool integration for enhanced code generation
  • Framework agnostic - works with React, Next.js, and more

Enterprise-ready security with SOC 2 Type II compliance, HIPAA compliance, and GDPR verification. Trusted by developers who want the simplicity of Firebase with the power and flexibility of a modern TypeScript-first platform.

A powerful platform for building cloud backends, automating infrastructure, and simplifying development workflows for faster, more efficient coding.

Screenshot of Encore website

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.

Fully managed backend infrastructure with built-in authentication, database, storage, and serverless functions for rapid application development.

Screenshot of NHost website

NHost is a comprehensive serverless backend platform designed to accelerate modern application development. By providing a fully managed infrastructure, NHost eliminates the complexities of backend setup and maintenance, allowing developers to focus on building exceptional user experiences.

Key benefits of NHost include:

  • Instant Setup: Get started in minutes with a pre-configured backend environment, saving valuable development time.
  • Built-in Authentication: Secure user management with support for multiple authentication methods, including social logins and JWT tokens.
  • Scalable Database: Utilize a powerful PostgreSQL database that automatically scales to meet your application's demands.
  • Serverless Functions: Deploy and run custom logic without managing servers, supporting various programming languages.
  • File Storage: Easily manage and serve user-generated content with integrated file storage capabilities.
  • GraphQL API: Access your data through a flexible and efficient GraphQL API, simplifying client-side development.
  • Real-time Subscriptions: Keep your app's data in sync across devices with real-time updates via WebSocket connections.
  • Local Development: Seamlessly develop and test your applications locally with NHost's CLI tools.
  • Customizable Workflows: Automate tasks and integrate with third-party services using event-triggered actions.

NHost's platform is designed to be developer-friendly, offering comprehensive documentation, SDKs for popular frameworks, and a supportive community. Whether you're building a startup MVP or scaling an enterprise application, NHost provides the tools and infrastructure to bring your ideas to life quickly and efficiently.

Lightweight Firebase alternative with database, auth, storage, and workflows. Framework-agnostic backend that integrates with NextJS, Remix, Hono and more.

Screenshot of Bknd website

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.

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