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Head-to-head · WebSocket Tools

Fastly Fanout vs Spring WebSocket

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Fastly Fanout #4 in WebSocket Tools 8.6/10 Pricing on request · 30-day trial ✓ 1 of 2 features Visit Fastly
Spring WebSocket #7 in WebSocket Tools 8.2/10 Free plan Free plan✓ 2 of 2 features Try Spring WebSocket

Fastly Fanout leads on 0 checks, Spring WebSocket on 2, and 1 is even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreFastly Fanout · 8.6/10
  • Free planonly Spring WebSocket
  • Most featuresSpring WebSocket · 2 of 2

Fastly Fanout scores higher on our rubric for websocket tools: 8.6 against 8.2 out of 10; our editors rank them #4 and #7.

Spring WebSocket offers free plan; Fastly Fanout doesn't. On deployment model, Spring WebSocket gives you Library where Fastly Fanout offers Managed. Spring WebSocket offers self-hosting available; Fastly Fanout doesn't.

Fastly Fanout is the better fit for enterprises building real-time streaming applications. Spring WebSocket is the better fit for java teams needing STOMP and broker options.

  • Fastly Fanout fits best

    Enterprises building real-time streaming applications

  • Spring WebSocket fits best

    Java teams needing STOMP and broker options

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature Fastly Fanout 8.6/10 Visit ↗ Spring WebSocket 8.2/10 Visit ↗
At a glance
Editor score 8.6 8.2
Ranking #4 in WebSocket Tools #7 in WebSocket Tools
Best for Enterprises building real-time streaming applications Java teams needing STOMP and broker options
Pricing model Paid Free
Starting price Not published Not published
Free plan — ✓ (best)
Free trial — —
Deployment Cloud Self-hosted
Built for Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Fastly Fanout 1/2 · Spring WebSocket 2/2
Pub/sub messaging ✓ ✓
Self-hosting available — ✓ (best)
Specs
Deployment model Managed Library
Free concurrent connections Not published Not published
Client SDKs Rust, JavaScript, Go Java
Protocol support WebSockets, Server-Sent Events, HTTP long polling, MQTT WebSocket, STOMP, SockJS
Our review
Pros
  • Manages persistent WebSocket connections at the edge
  • Supports pub/sub, SSE, long polling, and MQTT architectures
  • Translates client streams to HTTP backends, including serverless backends
  • Provides server- and client-side WebSocketHandler APIs
  • Supports STOMP endpoints with an in-memory broker or external relay
  • Includes SockJS fallback and RabbitMQ and ActiveMQ relay support
Cons
  • Requires a paid Fastly account with a Compute service for the trial
  • Pricing is handled through Fastly sales
  • Fanout is a managed cloud service, not a self-hosted deployment
  • Java-only client coverage limits language choice
  • Library deployment requires a Spring application rather than a hosted service
  • Support channels are documentation
Our verdict

Fastly Fanout is a managed edge publish/subscribe service for applications that need to keep client connections open and deliver live updates. It is aimed at teams building chat, live feeds, notifications, and IoT messaging, particularly…

Read the review →

Spring WebSocket is a module in the open-source Spring Framework for building client- and server-side applications that handle WebSocket messages. It suits Java teams that want to add real-time messaging to Spring applications, especially…

Read the review →
  1. Fastly FanoutWebSocket Tools 8.6Pricing on request · 30-day trial
  2. Spring WebSocketWebSocket Tools 8.2Free plan

Strengths and trade-offs

  • Fastly Fanout — where it wins

    • Manages persistent WebSocket connections at the edge
    • Supports pub/sub, SSE, long polling, and MQTT architectures
    • Translates client streams to HTTP backends, including serverless backends

    Where it doesn't

    • Requires a paid Fastly account with a Compute service for the trial
    • Pricing is handled through Fastly sales
    • Fanout is a managed cloud service, not a self-hosted deployment

  • Spring WebSocket — where it wins

    • Provides server- and client-side WebSocketHandler APIs
    • Supports STOMP endpoints with an in-memory broker or external relay
    • Includes SockJS fallback and RabbitMQ and ActiveMQ relay support

    Where it doesn't

    • Java-only client coverage limits language choice
    • Library deployment requires a Spring application rather than a hosted service
    • Support channels are documentation
  • Fastly Fanout8.6/10 · Pricing on request · 30-day trial

    A managed edge service for persistent connections and live message delivery.

    Visit FastlyFull verdict →
  • Spring WebSocket8.2/10 · Free plan

    An open-source Spring Framework module for Java WebSocket handlers, STOMP messaging, and broker relays.

    Try Spring WebSocketFull verdict →

More comparisons

All WebSocket tools comparisons → · Full ranking →

Guides on WebSocket tools

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update