Sockudo

At a glance

• Editor score
  6.9 / 10
• Pricing
  Open source
• Best for
  Self-hosters wanting Pusher-compatible realtime APIs
• Paid from
  None
• Deployment model
  Self-hosted
• Facts checked
  28 Sep 2026

• Where it wins

  • Pusher Protocol V1 compatibility with an optional recovery-focused Protocol V2
  • Durable channel history, replay, serials and message IDs
  • Fanout adapters for Redis, NATS, Kafka and other backends

• Where it doesn't

  • Self-hosting means your team operates the realtime infrastructure
  • Protocol V2 recovery features extend beyond basic WebSocket messaging
  • Support channels are community and documentation

Our verdict on Sockudo

Sockudo is an open-source realtime server written in Rust for teams that want to run WebSocket and HTTP publish workloads in their own environment. Its Pusher-compatible APIs make it relevant to developers looking for a self-hosted alternative that fits a Pusher-oriented application, while its additional protocol and infrastructure features target teams that need more than transient pub/sub. The published feature set includes client and server SDKs for multiple languages, along with a dashboard for operating the server.

The standout distinction is its combination of history and recovery with horizontal fanout. Protocol V2 includes recovery, serials, message IDs, rewind, filtering, annotations and mutable messages; durable channel history supports replay. Fanout adapters connect to systems including Redis, Redis Cluster, NATS, Kafka, RabbitMQ, Google Pub/Sub and Pulsar, alongside databases and AWS messaging services. That breadth can suit teams integrating realtime delivery into an existing backend ecosystem. Sockudo also lists push notifications for FCM, APNs, Web Push, HMS and WNS, as well as Prometheus metrics, webhooks and rate limiting. Teams that only need basic WebSocket messaging may find this scope unnecessary.

Deployment and ownership are central to the choice. Docker Compose and Kubernetes/Helm assets support self-hosting, but operating the service and its connected infrastructure remains the team's responsibility; community and documentation are the listed support channels. Sockudo is distributed under the MIT license, and no paid plan structure is described. Choose it when protocol compatibility, replay and control over deployment matter more than a managed service. Teams seeking hosted operations or support beyond community resources should consider alternatives that explicitly provide those arrangements.

Sockudo pricing

Sockudo fact sheet

Sockudo integrations

Sockudo lists 16 integrations on its own site.

• Redis
• Redis Cluster
• NATS
• RabbitMQ
• Google Pub/Sub
• Kafka
• Pulsar
• Apache Iggy
• PostgreSQL
• MySQL
• DynamoDB
• ScyllaDB
• SurrealDB
• AWS SQS
• AWS SNS
• AWS Lambda

Alternatives to Sockudo

• SSocket.IOAn open-source library for real-time apps, with transport fallback and reconnection built in.9.3
• APAbly Pub/SubFeature-rich managed pub/sub, with a free tier and paid plans from $29/month.8.8
• AWAzure Web PubSubA managed Azure service for real-time apps that need WebSockets, pub-sub, and scale.8.7

See all Sockudo alternatives →

Featured on iTechGuides

Sockudo is listed in our WebSocket Tools directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 9 Oct 2026 · How we research and update