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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
    Apache Storm Free plan apiLinuxMacself-hostedWeb Free7.3
    Esper vs Apache Storm
  2. 2
    Feldera Free plan apiLinuxMacself-hostedWeb Free7.3
    Esper vs Feldera
  3. 3
    AFL++ Free plan AndroidLinuxMacself-hostedWin €1666.67/mo7.2
    Esper vs AFL++
  4. 4
    Apache Beam Free plan apiLinuxMacself-hostedWeb Free7.2
    Esper vs Apache Beam
  5. 5
    Arroyo Free plan apiLinuxMacself-hostedWeb Free7.2
    Esper vs Arroyo
  6. 6
    Kafka Streams Free plan LinuxMacself-hostedWin Free7.2
    Esper vs Kafka Streams
  7. 7
    Timeplus Free plan apiLinuxMacself-hostedWeb $199/mo7.2
    Esper vs Timeplus
  8. 8
    Apache NiFi Free plan apiLinuxMacself-hostedWeb Free7.1
    Esper vs Apache NiFi
  9. 9
    Apache Spark Free plan apiLinuxMacself-hostedWin Free7.1
    Esper vs Apache Spark
  10. 10
    Confluent Cloud Free plan apiLinuxWeb $385/mo7.1
    Esper vs Confluent Cloud
  11. 12
    Materialize Free plan apiLinuxself-hostedWeb $0.13/mo7.1
    Esper vs Materialize
  12. 13
    Apache Flink Free plan apiLinuxself-hosted Free6.9
    Esper vs Apache Flink
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