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Best WhoisJSON API Alternatives in 2026

12 platforms from API clients ranked against WhoisJSON API on the same published basis.

  1. 1
    Apidog Free plan apiextensionLinuxMacself-hosted $9/mo8.7
    WhoisJSON API vs Apidog
  2. 2
    Bruno Free plan apiextensionLinuxMacWin $6/mo8.6
    WhoisJSON API vs Bruno
  3. 3
    Hoppscotch Free plan apiLinuxMacself-hostedWeb $6/mo8.3
    WhoisJSON API vs Hoppscotch
  4. 4
    Postman Free plan extensionLinuxMacWebWin $9/mo7.4
    WhoisJSON API vs Postman
  5. 5
    SoapUI Free plan LinuxMacself-hostedWin Free7.2
    WhoisJSON API vs SoapUI
  6. 6
    Insomnia Free plan LinuxMacself-hostedWin $12/mo7.2
    WhoisJSON API vs Insomnia
  7. 7
    Testfully Free plan extensionLinuxMacWebWin $10/mo7.0
    WhoisJSON API vs Testfully
  8. 8
    OpenReq Free plan extensionself-hostedWebWin Free6.9
    WhoisJSON API vs OpenReq
  9. 9
    Kreya Free plan LinuxMacWin $5/mo6.8
    WhoisJSON API vs Kreya
  10. 10
    httpYac Free plan extensionself-hosted Free6.8
    WhoisJSON API vs httpYac
  11. 11
    Altair GraphQL Client Free plan extensionLinuxMacself-hostedWeb 6.7
    WhoisJSON API vs Altair GraphQL Client
  12. 12
    Firecamp Free plan LinuxMacself-hostedWebWin $4,959/mo6.7
    WhoisJSON API vs Firecamp
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