Faye

At a glance

• Editor score
  5.7 / 10
• Pricing
  Open source
• Best for
  Browser-oriented Bayeux messaging
• Paid from
  None
• Deployment model
  Self_hosted
• Facts checked
  20 Sep 2026

• Where it wins

  • Implements the Bayeux protocol with channel subscriptions and publishing
  • Supports WebSockets, HTTP long polling, and JSON-P callback polling
  • Offers in-memory and Redis storage, including shared state across instances

• Where it doesn't

  • Self-hosted deployment requires managing the messaging infrastructure
  • Its focus is web messaging rather than broad broker functionality
  • Platform coverage centers on Node.js, Ruby/Rack, browsers, and server-side clients

Our verdict on Faye

Faye is an open-source, self-hosted publish-subscribe messaging system for web applications. It implements the Bayeux protocol and provides messaging servers for Node.js and Ruby/Rack, along with browser and server-side clients. Applications communicate through channels, while Faye routes messages between subscribed clients. This makes it a fit for teams building browser-oriented real-time messaging into web applications, especially when a hosted broker service is not the intended deployment model.

Its standout capability is transport flexibility within the web stack. Faye supports WebSockets, HTTP long polling, and callback polling via JSON-P, along with cross-origin communication. Applications can configure message retries and dispatch attempts, giving teams control over delivery behavior. Storage can remain in memory for a simpler deployment or use Redis when multiple Faye server instances need to share service state. Redis is the listed integration, and the system's protocol and channel model keep the messaging layer focused on web clients and servers.

Faye suits developers who need a lightweight Bayeux implementation with Node.js, Ruby/Rack, and browser support, plus the option to add Redis-backed shared state. Its narrow scope is also its main limitation: the published product description centers on web messaging rather than a broad set of broker protocols, platforms, or managed-service features. Teams seeking a specialized, self-hosted web messaging library should consider Faye; organizations wanting a wider broker ecosystem or hosted operations should look elsewhere.

Faye pricing

Faye fact sheet

Faye integrations

Faye lists 1 integrations on its own site.

• Redis

Alternatives to Faye

• RabbitMQA broad, open-source broker for queues, routing, streaming, and hybrid deployments.9.4
• Solace PubSub+ Event BrokerA broad hybrid event broker for teams connecting applications, services and devices.9.2
• Google Cloud Pub/SubA managed cloud pub/sub service with strong delivery controls and usage-based pricing.9.1

See all Faye alternatives →

Also listed in

• WebSocket Tools

Featured on iTechGuides

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update