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Best PostNL Address Validation API Alternatives in 2026

Updated

20 apps 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/mo6.5
    PostNL Address Validation API vs Melissa Global Address Verification
  2. 2
    Addrex Address Validation API Free plan apiWeb $39/mo6.4
    PostNL Address Validation API vs Addrex Address Validation API
  3. 3
    AddressZen Free plan apiextensionWeb Free6.3
    PostNL Address Validation API vs AddressZen
  4. 4
    Lob Address Verification Free plan apiWeb $260/mo6.3
    PostNL Address Validation API vs Lob Address Verification
  5. 6
    Byteplant Address Validator Free trial apiWebWin 5.5
    PostNL Address Validation API vs Byteplant Address Validator
  6. 7
    Hopewiser Address Validation Free trial apiLinuxself-hostedWebWin 5.5
    PostNL Address Validation API vs Hopewiser Address Validation
  7. 8
    PostGrid Address Verification Free trial apiself-hostedWeb $18/mo5.4
    PostNL Address Validation API vs PostGrid Address Verification
  8. 9
    Smarty Address Verification Free trial AndroidapiiOSLinuxMac $46/mo5.3
    PostNL Address Validation API vs Smarty Address Verification
  9. 10
    AFD Postcode WebWin 5.2
    PostNL Address Validation API vs AFD Postcode
  10. 11
    Experian Address Validation Web 5.2
    PostNL Address Validation API vs Experian Address Validation
  11. 12
    PostalUp Web 5.2
    PostNL Address Validation API vs PostalUp
  12. 13
    Precisely Data Enrichment Web 5.2
    PostNL Address Validation API vs Precisely Data Enrichment
  13. 14
    Addressr Web 5.1
    PostNL Address Validation API vs Addressr
  14. 15
    Informatica Product 360 apiself-hostedWebWin 5.1
    PostNL Address Validation API vs Informatica Product 360
  15. 16
    Precisely EnterWorks apiWebWin 5.1
    PostNL Address Validation API vs Precisely EnterWorks
  16. 17
    UPU POST*CODE API Web 5.1
    PostNL Address Validation API vs UPU POST*CODE API
  17. 18
    Oracle PeopleSoft Campus Solutions Financial Aid WebWin 5.0
    PostNL Address Validation API vs Oracle PeopleSoft Campus Solutions Financial Aid
  18. 19
    Addressfinder Free trial apiWeb A$19/mo4.9
    PostNL Address Validation API vs Addressfinder
  19. 20
    Fetchify Free trial apiWeb £25/mo4.9
    PostNL Address Validation API vs Fetchify
  20. 21
    Addresser Web 4.8
    PostNL Address Validation API vs Addresser

PostNL Address Validation API alternatives compared

#AppScoreFree planFromRuns on
1Melissa Global Address Verification6.5Free plan$40/moAPI, Linux, self-hosted, Web, Windows
2Addrex Address Validation API6.4Free plan$39/moAPI, Web
3AddressZen6.3Free planFreeAPI, Browser, Web
4Lob Address Verification6.3Free plan$260/moAPI, Web
6Byteplant Address Validator5.5No—API, Web, Windows
7Hopewiser Address Validation5.5No—API, Linux, self-hosted, Web, Windows
8PostGrid Address Verification5.4No$18/moAPI, self-hosted, Web
9Smarty Address Verification5.3No$46/moAndroid, API, iOS, Linux, Mac, self-hosted, Web, Windows
10AFD Postcode5.2No—Web, Windows
11Experian Address Validation5.2No—Web
12PostalUp5.2No—Web
13Precisely Data Enrichment5.2No—Web
14Addressr5.1No—Web
15Informatica Product 3605.1No—API, self-hosted, Web, Windows
16Precisely EnterWorks5.1No—API, Web, Windows
17UPU POST*CODE API5.1No—Web
18Oracle PeopleSoft Campus Solutions Financial Aid5.0No—Web, Windows
19Addressfinder4.9NoA$19/moAPI, Web
20Fetchify4.9No£25/moAPI, Web
21Addresser4.8No—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 6.5 out of 10. The others here: Addrex Address Validation API, AddressZen, 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. 4 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.