The best open source alternative to Orbital is Krakend. If that doesn't suit you, we've compiled a ranked list of other open source Orbital alternatives to help you find a suitable replacement. Other interesting open source alternative to Orbital is WunderGraph.
Orbital alternatives are mainly API Infrastructure Tools but may also be API Integration Tools or Web Frameworks. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Orbital.
High-performance, stateless API gateway built for microservices. Handle 80K+ requests/second with transparent pricing and enterprise-grade reliability.

KrakenD delivers unmatched performance for modern microservices architectures, processing over 80,000 requests per second on commodity hardware. This stateless, distributed API gateway goes beyond simple reverse-proxy functionality to provide comprehensive API management.
Key advantages include:
The platform excels at solving shared microservices concerns including API aggregation, traffic management, authentication (JWT, OAuth2, mTLS), and connectivity to diverse services like GraphQL, gRPC, Kafka, and Lambda. Built-in data transformation capabilities allow automatic protocol conversion between JSON, XML, and SOAP.
Comprehensive monitoring through OpenTelemetry integrations provides deep insights into performance and usage patterns. The OpenAPI exporter automatically generates documentation websites, while GitOps compatibility enables version-controlled configuration management.
Companies like Hepsiburada run over 800 KrakenD containers in production, highlighting its proven scalability. The combination of speed, simplicity, and comprehensive feature set makes KrakenD ideal for organizations transitioning to microservices or scaling existing API infrastructure.
Looking for open source alternatives to other popular services? Check out other posts in the alternatives series and openalternative.co, a directory of open source software with filters for tags and alternatives for easy browsing and discovery.
A powerful backend framework that simplifies API integration, enhances security, and boosts developer productivity for modern web applications.

WunderGraph is a revolutionary backend framework designed to simplify the complexities of modern API development and integration. By providing a unified approach to working with various data sources, WunderGraph significantly enhances developer productivity and application performance.
Key benefits of WunderGraph include:
Seamless API Integration: Easily connect and unify multiple APIs, databases, and services using a single GraphQL schema, eliminating the need for complex integration code.
Enhanced Security: Built-in authentication and authorization features protect your APIs and data, ensuring robust security without additional overhead.
Developer-Friendly Workflow: Generate type-safe API clients automatically, enabling faster development and reducing errors in frontend-backend communication.
Performance Optimization: Intelligent caching and data fetching strategies improve application speed and reduce server load, resulting in better user experiences.
Flexible Deployment: Deploy your applications anywhere with support for serverless, containerized, and traditional hosting environments.
Real-Time Capabilities: Effortlessly implement real-time features using subscriptions and live queries, keeping your applications responsive and up-to-date.
By leveraging WunderGraph, development teams can focus on building feature-rich applications rather than wrestling with API complexities, resulting in faster time-to-market and more scalable, maintainable codebases.