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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
    Smarty Address Verification Free trial AndroidapiiOSLinuxMac $46/mo6.9
    PostNL Address Validation API vs Smarty Address Verification
  2. 2
    Addrex Address Validation API Free plan apiWeb $39/mo6.3
    PostNL Address Validation API vs Addrex Address Validation API
  3. 3
    Melissa Global Address Verification Free plan apiLinuxself-hostedWebWin $40/mo6.3
    PostNL Address Validation API vs Melissa Global Address Verification
  4. 4
    Lob Address Verification Free plan apiWeb $260/mo6.2
    PostNL Address Validation API vs Lob Address Verification
  5. 5
    Byteplant Address Validator Free trial apiWebWin 5.7
    PostNL Address Validation API vs Byteplant Address Validator
  6. 6
    Hopewiser Address Validation Free trial apiLinuxself-hostedWebWin 5.7
    PostNL Address Validation API vs Hopewiser Address Validation
  7. 7
    PostGrid Address Verification Free trial apiself-hostedWeb $18/mo5.7
    PostNL Address Validation API vs PostGrid Address Verification
  8. 8
    Informatica Product 360 apiself-hostedWebWin 5.6
    PostNL Address Validation API vs Informatica Product 360
  9. 9
    Precisely EnterWorks apiWebWin 5.6
    PostNL Address Validation API vs Precisely EnterWorks
  10. 10
    Addressfinder Free trial apiWeb A$19/mo5.4
    PostNL Address Validation API vs Addressfinder
  11. 11
    Fetchify Free trial apiWeb £25/mo5.4
    PostNL Address Validation API vs Fetchify
  12. 12
    AFD Postcode WebWin 5.3
    PostNL Address Validation API vs AFD Postcode
  13. 13
    Experian Address Validation Web 5.3
    PostNL Address Validation API vs Experian Address Validation
  14. 14
    Oracle PeopleSoft Campus Solutions Financial Aid WebWin 5.3
    PostNL Address Validation API vs Oracle PeopleSoft Campus Solutions Financial Aid
  15. 15
    PostalUp Web 5.3
    PostNL Address Validation API vs PostalUp
  16. 17
    Precisely Data Enrichment Web 5.3
    PostNL Address Validation API vs Precisely Data Enrichment
  17. 18
    Addressr Web 5.2
    PostNL Address Validation API vs Addressr
  18. 19
    UPU POST*CODE API Web 5.2
    PostNL Address Validation API vs UPU POST*CODE API
  19. 20
    Addresser Web 5.1
    PostNL Address Validation API vs Addresser
  20. 21
    Addressify 5.1
    PostNL Address Validation API vs Addressify

PostNL Address Validation API alternatives compared

#AppScoreFree planFromRuns on
1Smarty Address Verification6.9No$46/moAndroid, API, iOS, Linux, Mac, self-hosted, Web, Windows
2Addrex Address Validation API6.3Free plan$39/moAPI, Web
3Melissa Global Address Verification6.3Free plan$40/moAPI, Linux, self-hosted, Web, Windows
4Lob Address Verification6.2Free plan$260/moAPI, Web
5Byteplant Address Validator5.7No—API, Web, Windows
6Hopewiser Address Validation5.7No—API, Linux, self-hosted, Web, Windows
7PostGrid Address Verification5.7No$18/moAPI, self-hosted, Web
8Informatica Product 3605.6No—API, self-hosted, Web, Windows
9Precisely EnterWorks5.6No—API, Web, Windows
10Addressfinder5.4NoA$19/moAPI, Web
11Fetchify5.4No£25/moAPI, Web
12AFD Postcode5.3No—Web, Windows
13Experian Address Validation5.3No—Web
14Oracle PeopleSoft Campus Solutions Financial Aid5.3No—Web, Windows
15PostalUp5.3No—Web
17Precisely Data Enrichment5.3No—Web
18Addressr5.2No—Web
19UPU POST*CODE API5.2No—Web
20Addresser5.1No—Web
21Addressify5.1No——
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Questions about PostNL Address Validation API alternatives

What is the best alternative to PostNL Address Validation API?

Smarty Address Verification, number 1 in address verification software with a score of 6.9 out of 10. The others here: Addrex Address Validation API, Melissa Global Address Verification, Lob Address Verification and 16 more.

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

Addrex Address Validation API 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 mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.