Faye vs Lightstreamer
Faye
faye.jcoglan.comLightstreamer
lightstreamer.comSide by side
| Figure | Faye | Lightstreamer |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 5 |
| Spec score · WebSocket Tools | 8.8 (#3) | 8.1 (#5) |
| Spec score · Message Broker Software | 8.7 (#6) | 7.9 (#20) |
| Integrations | The download instructions provide installation through npm for Node.js and RubyGems for Ruby. | Ready-made connectors integrate with Kafka, MQTT, and JMS; named examples include Confluent Cloud, Amazon MSK, Redpanda, AWS IoT Core, IBM MQ, and ActiveMQ. |
| Security | Faye allows cross-domain access and unrestricted publishing and subscribing by default, so the documentation advises adding application-appropriate restrictions. | The broker supports TLS with configurable cipher suites, client and server certificates, mutual authentication, and custom authentication and authorization through a Metadata Adapter. |
Plans
Lightstreamer
- Demo LicenseFree
- Annual subscription — Per Client LicensePrice not published
- Annual subscription — Per Server LicensePrice not published
- PAYG — Per Client-Hour LicensePrice not published
- PAYG — Per Core-Hour LicensePrice not published
In their own words
Faye
Faye is a publish-subscribe messaging system that uses the Bayeux protocol. It provides message servers for Node.js and Ruby, plus clients for servers and major web browsers. Browser clients rely on a Faye server to relay messages; they can retry after a lost connection and redeliver dropped messages. Transport adapters cover WebSocket, HTTP long-polling, Cross Origin Resource Sharing, and JSON-P callback-polling. Server and client extensions can intercept or modify messages, including to add subscription authentication. The monitoring API reports handshakes, subscriptions, unsubscriptions, publishes, and disconnections. Faye runs on Linux, macOS, and Windows, and can be self-hosted. Its default in-process engine cannot span multiple front-end web servers, but Redis and Couchbase engines are documented for distributed deployments. Faye is free and open source under the Apache 2.0 license; the listed plan is free. Install the Node.js server through npm or the Ruby server through RubyGems.
Lightstreamer
Lightstreamer is an event broker for delivering real-time data to web and mobile applications, including across proxies, firewalls, disconnections, and network congestion. Intelligent Streaming adjusts data flow to network conditions and can resample or combine updates to keep users synchronized. Messaging options include publish/subscribe, request/response, client-to-server messaging, and fine-grained item and field subscriptions. StreamSense chooses WebSockets or HTTP connections for each client, including through restrictive firewalls and legacy proxies.
Ready-made connectors cover Kafka, MQTT, and JMS, with named examples including Confluent Cloud, Amazon MSK, Redpanda, AWS IoT Core, IBM MQ, and ActiveMQ. Custom adapters can be built with Java, Python, Node.js, .NET, and TCP sockets. Lightstreamer supports TLS, certificates, mutual authentication, and custom authentication and authorization. It can be deployed on-premises or in the cloud, with Helm, Docker, and Kubernetes support. Monitoring options include a web dashboard, configurable logs, JMX, Prometheus, and Grafana integrations. The free Non-Production Limited License requires a Production License and a server restart after at most 210 minutes of uptime.