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Best PostNL Address Validation API Alternatives in 2026

Updated

20 tools from address verification software ranked against PostNL Address Validation API on the same published basis.

  1. 1
    Melissa Global Address Verification Free plan apiLinuxself-hostedWebWin $40/mo7.6
    PostNL Address Validation API vs Melissa Global Address Verification
  2. 2
    Smarty Address Verification Free trial AndroidapiiOSLinuxMac $46/mo7.4
    PostNL Address Validation API vs Smarty Address Verification
  3. 3
    Hopewiser Address Validation Free trial apiLinuxself-hostedWebWin 7.1
    PostNL Address Validation API vs Hopewiser Address Validation
  4. 4
    Lob Address Verification Free plan apiWeb $260/mo7.1
    PostNL Address Validation API vs Lob Address Verification
  5. 5
    Byteplant Address Validator Free trial apiWebWin 7.0
    PostNL Address Validation API vs Byteplant Address Validator
  6. 6
    Addrex Address Validation API Free plan apiWeb $39/mo6.9
    PostNL Address Validation API vs Addrex Address Validation API
  7. 7
    PostGrid Address Verification Free trial apiself-hostedWeb $18/mo6.8
    PostNL Address Validation API vs PostGrid Address Verification
  8. 8
    Informatica Product 360 apiself-hostedWebWin 6.7
    PostNL Address Validation API vs Informatica Product 360
  9. 9
    Precisely EnterWorks apiWebWin 6.6
    PostNL Address Validation API vs Precisely EnterWorks
  10. 10
    Addressfinder Free trial apiWeb A$19/mo6.5
    PostNL Address Validation API vs Addressfinder
  11. 11
    Fetchify Free trial apiWeb £25/mo6.5
    PostNL Address Validation API vs Fetchify
  12. 12
    Oracle PeopleSoft Campus Solutions Financial Aid WebWin 6.2
    PostNL Address Validation API vs Oracle PeopleSoft Campus Solutions Financial Aid
  13. 13
    AFD Postcode WebWin 5.9
    PostNL Address Validation API vs AFD Postcode
  14. 14
    Experian Address Validation Web 5.9
    PostNL Address Validation API vs Experian Address Validation
  15. 16
    Precisely Data Enrichment Web 5.8
    PostNL Address Validation API vs Precisely Data Enrichment
  16. 17
    Addressr Web 5.7
    PostNL Address Validation API vs Addressr
  17. 18
    AddressZen Web 5.7
    PostNL Address Validation API vs AddressZen
  18. 19
    PostalUp Web 5.7
    PostNL Address Validation API vs PostalUp
  19. 20
    UPU POST*CODE API Web 5.7
    PostNL Address Validation API vs UPU POST*CODE API
  20. 21
    Addresser Web 5.6
    PostNL Address Validation API vs Addresser

PostNL Address Validation API alternatives compared

#ToolScoreFree planFromRuns on
1Melissa Global Address Verification7.6Free plan$40/moAPI, Linux, self-hosted, Web, Windows
2Smarty Address Verification7.4No$46/moAndroid, API, iOS, Linux, Mac, self-hosted, Web, Windows
3Hopewiser Address Validation7.1No—API, Linux, self-hosted, Web, Windows
4Lob Address Verification7.1Free plan$260/moAPI, Web
5Byteplant Address Validator7.0No—API, Web, Windows
6Addrex Address Validation API6.9Free plan$39/moAPI, Web
7PostGrid Address Verification6.8No$18/moAPI, self-hosted, Web
8Informatica Product 3606.7No—API, self-hosted, Web, Windows
9Precisely EnterWorks6.6No—API, Web, Windows
10Addressfinder6.5NoA$19/moAPI, Web
11Fetchify6.5No£25/moAPI, Web
12Oracle PeopleSoft Campus Solutions Financial Aid6.2No—Web, Windows
13AFD Postcode5.9No—Web, Windows
14Experian Address Validation5.9No—Web
16Precisely Data Enrichment5.8No—Web
17Addressr5.7No—Web
18AddressZen5.7No—Web
19PostalUp5.7No—Web
20UPU POST*CODE API5.7No—Web
21Addresser5.6No—Web
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Questions about PostNL Address Validation API alternatives

What is the best alternative to PostNL Address Validation API?

Melissa Global Address Verification, number 1 in address verification software with a score of 7.6 out of 10. The others here: Smarty Address Verification, Hopewiser Address Validation, Lob Address Verification and 16 more.

What is the best free alternative to PostNL Address Validation API?

Melissa Global Address Verification is the best-ranked alternative with a free plan. 3 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.