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Best Fiddler AI Alternatives in 2026

12 apps from AI agent observability tools ranked against Fiddler AI on the same published basis.

  1. 1
    SigNoz Free plan AndroidapiiOSself-hostedWeb $19/mo7.8
    Fiddler AI vs SigNoz
  2. 2
    Agenta Free plan apiself-hostedWeb $29/mo6.4
    Fiddler AI vs Agenta
  3. 3
    PetalTrace Free plan apiLinuxMacself-hostedWeb Free6.4
    Fiddler AI vs PetalTrace
  4. 4
    Traccia Free plan apiWeb $99/mo6.4
    Fiddler AI vs Traccia
  5. 5
    TraceRoot Free plan Web $30/mo6.4
    Fiddler AI vs TraceRoot
  6. 6
    VoltOps Free plan apiself-hostedWeb $50/mo6.4
    Fiddler AI vs VoltOps
  7. 7
    Arize AX Free plan apiself-hostedWeb $50/mo6.3
    Fiddler AI vs Arize AX
  8. 8
    Braintrust Free plan apiself-hostedWeb $249/mo6.3
    Fiddler AI vs Braintrust
  9. 9
    Galileo Free plan apiself-hostedWeb $100/mo6.3
    Fiddler AI vs Galileo
  10. 10
    Helicone Free plan apiself-hostedWeb $79/mo6.3
    Fiddler AI vs Helicone
  11. 11
    Laminar Free plan apiself-hostedWeb $30/mo6.3
    Fiddler AI vs Laminar
  12. 12
    Langfuse Free plan apiself-hostedWeb $29/mo6.3
    Fiddler AI vs Langfuse
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