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Best Esper Alternatives in 2026

12 apps from stream processing software ranked against Esper on the same published basis.

  1. 1
    AFL++ Free plan AndroidLinuxMacself-hostedWin €1666.67/mo7.8
    Esper vs AFL++
  2. 2
    Apache Flink Free plan apiLinuxself-hosted Free6.4
    Esper vs Apache Flink
  3. 3
    Arroyo Free plan apiLinuxMacself-hostedWeb Free6.4
    Esper vs Arroyo
  4. 4
    Confluent Cloud Free plan apiLinuxWeb $385/mo6.4
    Esper vs Confluent Cloud
  5. 6
    Feldera Free plan apiLinuxMacself-hostedWeb Free6.4
    Esper vs Feldera
  6. 7
    Kafka Streams Free plan LinuxMacself-hostedWin Free6.4
    Esper vs Kafka Streams
  7. 8
    Materialize Free plan apiLinuxself-hostedWeb $0.13/mo6.4
    Esper vs Materialize
  8. 9
    Pathway Live Data Framework Free plan apiself-hosted Free6.4
    Esper vs Pathway Live Data Framework
  9. 10
    Apache Beam Free plan apiLinuxMacself-hostedWeb Free6.3
    Esper vs Apache Beam
  10. 11
    Apache Samza Free plan apiLinuxself-hosted Free6.3
    Esper vs Apache Samza
  11. 12
    Apache Spark Free plan apiLinuxMacself-hostedWin Free6.3
    Esper vs Apache Spark
  12. 13
    Apache Storm Free plan apiLinuxMacself-hostedWeb Free6.3
    Esper vs Apache Storm
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