Best Address Verification Software in 2026
Updated
In short: Melissa Global Address Verification is ranked #1 of 32 as of 4 October 2026, ahead of Addrex Address Validation API and Lob Address Verification. The best-ranked option with a free plan is Addrex Address Validation API. The lowest first paid tier on this page is PostGrid Address Verification at $18/mo.
Address verification software can help check and format address data across the workflows where you handle records. Compared on address correction, standardization, and autocomplete, the entries also specify batch validation and API access, which may suit different ways of processing addresses. International coverage is another point to consider, alongside free plan availability and paid-from pricing. Melissa Global Address Verification, Addrex Address Validation API, and Lob Address Verification are among the named options. Use the listed capabilities to compare what fits your address validation needs, whether you work with individual entries or batches.
32 address verification software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
3 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | Melissa Global Address VerificationWeb · Windows · Linux · Self-hosted · API | Three bars | — | 3 of 6 | $40/mo | 6.5 | |
| 2 | Addrex Address Validation APIWeb · API | Two bars | — | 1 of 6 | $39/mo | 6.4 | |
| 3 | Lob Address VerificationWeb · API | Two bars | — | 1 of 6 | $260/mo | 6.3 | |
| 4 | Byteplant Address ValidatorWeb · Windows · API | One bar | — | — | 2 of 6 | — | 5.5 |
| 5 | Hopewiser Address ValidationWeb · Windows · Linux · Self-hosted · API | Two bars | — | — | 3 of 6 | — | 5.5 |
| 6 | PostGrid Address VerificationWeb · Self-hosted · API | One bar | — | — | 1 of 6 | $18/mo | 5.4 |
| 7 | Smarty Address VerificationWeb · Windows · Mac · Linux · Android · iPhone · Self-hosted · API | Two bars | — | — | 6 of 6 | $46/mo | 5.3 |
| 8 | AFD PostcodeWeb · Windows | No signal | — | — | 2 of 6 | — | 5.2 |
| 9 | Experian Address ValidationWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 10 | PostalUpWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 11 | PostNL Address Validation APIWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 12 | Precisely Data EnrichmentWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 13 | AddressrWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 14 | Informatica Product 360Web · Windows · Self-hosted · API | One bar | — | — | 2 of 6 | — | 5.1 |
| 15 | Precisely EnterWorksWeb · Windows · API | One bar | — | — | 2 of 6 | — | 5.1 |
| 16 | UPU POST*CODE APIWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 17 | Oracle PeopleSoft Campus Solutions Financial AidWeb · Windows | One bar | — | — | 2 of 6 | — | 5.0 |
| 18 | AddressfinderWeb · API | One bar | — | — | 1 of 6 | A$19/mo | 4.9 |
| 19 | FetchifyWeb · API | One bar | — | — | 1 of 6 | £25/mo | 4.9 |
| 20 | AddresserWeb | No signal | — | — | 1 of 6 | — | 4.8 |
| 21 | AddressZenWeb | No signal | — | — | 1 of 6 | — | 4.8 |
| 22 | Google Maps Platform Address Validation APIWeb | No signal | — | — | 1 of 6 | — | 4.8 |
| 23 | AddressCompleteWeb | No signal | — | — | 1 of 6 | — | 4.7 |
| 24 | AddressifyNo platforms listed | No signal | — | — | 0 of 6 | — | 4.7 |
| 25 | DOTS Address Validation – US 3No platforms listed | No signal | — | — | 0 of 6 | — | 4.7 |
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | API access | Batch validation |
|---|---|---|---|---|---|---|---|---|
| 1 | Melissa Global Address Verification | 6.5 | Free plan | $40/mo | Yes | 40 /mo | Yes | Yes |
| 2 | Addrex Address Validation API | 6.4 | Free plan | $39/mo | Yes | 39 /mo | Yes | Yes |
| 3 | Lob Address Verification | 6.3 | Free plan | $260/mo | Yes | 20 /mo | Yes | Yes |
| 4 | Byteplant Address Validator | 5.5 | No | — | No | — | Yes | Yes |
| 5 | Hopewiser Address Validation | 5.5 | No | — | Yes | — | Yes | Yes |
| 6 | PostGrid Address Verification | 5.4 | No | $18/mo | No | 18 /mo | Yes | Yes |
| 7 | Smarty Address Verification | 5.3 | No | $46/mo | No | 17 /mo | Yes | Yes |
| 8 | AFD Postcode | 5.2 | No | — | — | — | Yes | — |
| 9 | Experian Address Validation | 5.2 | No | — | — | — | Yes | Yes |
| 10 | PostalUp | 5.2 | No | — | Yes | 29 /mo | Yes | Yes |
| 11 | PostNL Address Validation API | 5.2 | No | — | Yes | — | Yes | — |
| 12 | Precisely Data Enrichment | 5.2 | No | — | — | — | Yes | Yes |
| 13 | Addressr | 5.1 | No | — | Yes | — | Yes | — |
| 14 | Informatica Product 360 | 5.1 | No | — | No | — | Yes | Yes |
| 15 | Precisely EnterWorks | 5.1 | No | — | — | — | Yes | Yes |
| 16 | UPU POST*CODE API | 5.1 | No | — | — | — | Yes | — |
| 17 | Oracle PeopleSoft Campus Solutions Financial Aid | 5.0 | No | — | No | — | — | — |
| 18 | Addressfinder | 4.9 | No | A$19/mo | No | — | Yes | Yes |
| 19 | Fetchify | 4.9 | No | £25/mo | No | — | Yes | Yes |
| 20 | Addresser | 4.8 | No | — | No | — | Yes | Yes |
| 21 | AddressZen | 4.8 | No | — | No | — | Yes | Yes |
| 22 | Google Maps Platform Address Validation API | 4.8 | No | — | No | — | Yes | Yes |
| 23 | AddressComplete | 4.7 | No | — | No | — | Yes | — |
| 24 | Addressify | 4.7 | No | — | No | — | Yes | Yes |
| 25 | DOTS Address Validation – US 3 | 4.7 | No | — | No | — | Yes | Yes |
Is your app on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which address verification software is ranked first on Freedom251?
Melissa Global Address Verification is ranked #1 of 32 with a score of 6.5. Addrex Address Validation API is second and Lob Address Verification third.
How many of these have a free plan?
3 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, PostGrid Address Verification has the lowest first paid tier we found: $18/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.