GRPC Alternatives (January 2026)

gRPC

https://grp.io/

A high performance, open source universal RPC …

4.4/5

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The Collaborative API Development Platform - Insomnia

https://insomni

.rest/

Leading Open Source API Development Platform for HTTP, REST, GraphQL, gRPC, SOAP, and WebSockets

ZeroMQ

https://zerom

.org/

An open-source universal messaging library

Apache ServiceComb

https://servicecomb.apach

.org/

Open-Source, Full-Stack Microservice Solution.With out of the box, high performance, compatible with popular ecology, multi-language support Get started

Istio

https://isti

.io/

A service mesh for observability, security in depth, and management that speeds deployment cycles.

Apache Kafka

https://kafka.apach

.org/

Apache Kafka: A Distributed Streaming Platform.

Dgraph | Open Source, AI-Ready Graph Database

https://dgrap

.io/

The only open source, AI-ready graph database that gives developers the tools to quickly build distributed applications at scale.

memcached - a distributed memory object caching system

https://memcache

.org/

memcached

containerd – An industry-standard container runtime with an emphasis on simplicity, robustness and portability

https://container

.io/

An industry-standard container runtime with an emphasis on simplicity, robustness, and portability

HAProxy - The Reliable, High Perf. TCP/HTTP Load Balancer

https://www.haprox

.org/

Reliable, High Performance TCP/HTTP Load Balancer