Best Realtime Backend / API Products in 2025

An open source Firebase alternative.

Key Supabase features:

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

Open Source

Monitor all your cloud services with our status page aggregator. IT teams choose IsDown to monitor all their vendors and get alerts whenever an outage occurs. Integration with Datadog, PagerDuty, Slack, Microsoft Teams, and a lot more.

Key IsDown.app features:

Status Dashboard Multiple Profiles for same account Slack App Zapier Integration

Try for free paid Free Trial $37.0 / Monthly (Pro)

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

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

JavaScript library for app development using cloud services.

Key AWS Amplify features:

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

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

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

Realtime application framework (Node.JS server).

Key Socket.io features:

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

Open Source

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

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

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

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

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

Etebase makes it easy to build end-to-end encrypted applications by taking care of the encryption and its related challenges.

Key Etebase features:

End-to-End Encryption Open Source Cross-Platform Compatibility Developer-Friendly API

Open Source