Software Alternatives, Accelerators & Startups

โšก Realtime Backend / API

Platforms providing backend services and APIs for real-time applications and data management.

The best Realtime Backend / API Products based on votes, our collection of reviews, verified products and a total of 1,643 factors.

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Best Realtime Backend / API Products in 2025

  1. 324

    An open source Firebase alternative.

    Key Supabase features:

    Real-time capabilities PostgreSQL foundation Open-source Ease of use

    Open Source

    /supabase-alternatives
  2. Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

    Key Flagsmith features:

    Feature Flags Remote Config A/B/X Testing & Optimization Organization Management

    Try for free Open Source freemium

    Try for free
  3. 221

    Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.

    Key Firebase features:

    Real-time Database Easy Integration Scalability Authentication Services

    /firebase-alternatives
  4. 91

    Hasura is an open platform to build scalable app backends, offering a built-in database, search, user-management and more.

    Key Hasura features:

    Real-Time Data Auto-Generated APIs Authorization and Authentication Microservices & Event Triggers

    Open Source

    /hasura-alternatives
  5. 93

    JavaScript library for app development using cloud services.

    Key AWS Amplify features:

    Ease of Use Integration with AWS Services Speed of Deployment Automated Workflows

    /aws-amplify-alternatives
  6. 83

    Open Source backend with realtime database, authentication, file storage and admin dashboard, all compiled in 1 portable executable.

    Key PocketBase.io features:

    Realtime database Authentication via email/password Authentuication via OAuth2 Files management

    Open Source free

    /pocketbase-io-alternatives
  7. 79

    Appwrite provides web and mobile developers with a set of easy-to-use and integrate REST APIs to manage their core backend needs.

    Key AppWrite features:

    Open Source Self-Hosted Comprehensive Backend Multi-Language Support

    Open Source

    /appwrite-alternatives
  8. 68

    Realtime application framework (Node.JS server).

    Key Socket.io features:

    Real-time Communication Cross-browser Compatibility Fallback Support Event-driven Architecture

    Open Source

    /socket-io-alternatives
  9. 47

    Pterodactyl is the free game server management panel designed by users, for users.

    Key Pterodactyl features:

    Open Source Multigame Support User-Friendly Interface Docker Integration

    Open Source

    /pterodactyl-alternatives
  10. 49

    Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.

    Key Parse features:

    Open Source Rich Feature Set Cross-Platform Support Community and Documentation

    Open Source

    /parse-alternatives
  11. 51

    It's made for hosting your Minecraft server. It's open source.

    Key Pufferpanel features:

    User-Friendly Interface Open Source Multi-Game Support Automated Installations

    Open Source

    /pufferpanel-alternatives
  12. 44

    Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.

    Key Pusher features:

    Real-Time Capabilities Ease of Use Scalability Security

    Open Source

    /pusher-alternatives
  13. 41

    The Nexus Sites are a large network of community driven websites that support the free and open...

    Key Nexus Mods features:

    Extensive Library User-Friendly Interface Community and Support Endorsations and Ratings

    /nexus-mods-alternatives
  14. 42

    The command line tool for quick, simple deployment and management of dedicated game servers.

    Key Linux Game Server Managers features:

    Ease of Use Wide Game Support Comprehensive Documentation Cost-Effective

    Open Source

    /linux-game-server-managers-alternatives

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