Compare the Top Free Address Verification Software as of December 2025

What is Free Address Verification Software?

Address verification software enables organizations to verify, standardize, and clean personal and business addresses within an address database. Address verification software is useful for organizations that conduct direct mail campaigns or otherwise rely on accurate physical address data. Compare and read user reviews of the best Free Address Verification software currently available using the table below. This list is updated regularly.

  • 1
    Geocodio

    Geocodio

    Geocodio

    Whether you have 100 or 100,000,000 addresses, we can help you. Use the data however you want with no restrictions. Geocodio will automatically add missing components to an address and can parse complex addresses such as intersections. Geocodio will automatically correct minor typos and inconsistencies. Append Congressional districts, state legislative districts, Census blocks, timezones and more to any address. Geocodio breaks addresses into standardized, individual components in a consistent format. Geocodio only supports US and Canadian addresses at this time.
  • 2
    Ideal Postcodes

    Ideal Postcodes

    Ideal Postcodes

    Our UK address validation and postcode lookup tools are the most comprehensive available, providing access to highly accurate data, including geolocations and UPRN. We offer a user-friendly integration process with transparent documentation, open-source libraries, and live support. We cater to businesses of all sizes, ranging from small startups to public and FTSE 100 organizations, delivering fast, cost-effective, and well-supported APIs to enable postcode lookup, address search, and address autocomplete. Our services are GDPR compliant, ensuring the protection of your customer data within our UK and EU data centers. With minimal code, you can easily integrate address validation into your eCommerce site, CRM, or any other platform. Our JavaScript libraries allow for quick implementation of address finder and postcode lookup.
    Starting Price: £9 for 200 address lookups
  • 3
    Smarty

    Smarty

    Smarty

    Smarty leads the way in location data intelligence, offering a comprehensive suite of address validation APIs for USPS, non-postal, and international addresses. Our address autocomplete API simplifies data entry, and our geocoding and reverse geocoding APIs deliver hyper-accurate results at lightning speed. From New York to Jakarta, Smarty covers the globe, standardizing, validating, and enriching address data. Our fully documented APIs and unlimited tech support make us the top choice for USPS and international address validation solutions. Whether you're in Tokyo or Toronto, our comprehensive documentation and exceptional customer support make it easy to start validating addresses in minutes. With 250 free lookups per month, no credit card required, and a full demo available, Smarty has you covered. From address validation to list processing, we've got every detail you need. Our service ensures security with 24-hour monitoring, encryption, and hashed data, delivering an average sub-3
    Starting Price: $0 per month
  • 4
    AddressFinder

    AddressFinder

    AddressFinder

    Make address search easier, enhance your forms with our address finder. Enjoy speedy, predictive and accurate address autocomplete. Our address finder and address verification software will find, verify, cleanse and format accurate Australian addresses via one simple and easy to integrate API. Integrate AddressFinder with your online store or CRM with our plugins. Have confidence in your address database. With AddressFinder’s address verification service you can upload your spreadsheet of Australian addresses (or use our verification API) to match with verified addresses from authoritative AU datasets. Use AddressFinder’s range of APIs to autocomplete addresses, get address metadata (e.g. latitude/longitude values) and more. Our address autocomplete API only ever displays valid addresses from official Australia Post and PSMA databases. The addresses you collect will always be real and mistake-free.
    Starting Price: $39 per month
  • 5
    Byteplant Address Validator
    Verify, standardize and correct postal addresses from over 240 countries worldwide. Whether you want to clean up your customer address in your backend database or verify addresses in real-time directly on your frontend, address validator is exactly the right solution for you. Validate email addresses without sending email, improve sender reputation, deliverability and reduce bounce rates with Byteplant's email validator. With our online API you can validate email addresses right at the point of entry. This allows your visitors to correct errors instantly, and only valid email addresses will be accepted. Email is the main point of contact between your business and the customer. Byteplant's email validator will help you reach your customers and keep your email sender reputation intact. We offer full end-to-end email verification solutions for all your email marketing needs. Our email validation services will improve your sender reputation and delivery rates.
    Starting Price: $18 one-time payment
  • 6
    SimplShip

    SimplShip

    SimplShip

    Always ensure your customers packages get to the right address. SimplShip makes it easy to ensure every package you send to your customer makes it to the right location. Every address you send to us is validated against the U.S. Postal services database. We make sure that everything you send to your customer is going to the right place. We're here to ensure every customer of yours gets their package to the right place. No more angry customers worrying about where their package has gone. With over half of your customers using mobile phones, why make it hard for them to add their billing and shipping address? Instead use our Autocomplete API to make it easy for your customer and harder for them to input the wrong letter. Our address information comes straight from the U.S. Postal service. So you know you're getting the right address every time. Don't make your customers have to type their address on their phone. Try to figure out what their address is in real-time.
    Starting Price: 3¢ per request
  • 7
    AddressZen

    AddressZen

    IDDQD Limited

    We provide an address lookup solution to search and verify addresses on an online form. We provide an API and various integrations to implement address verification. Address lookup autocompletes in real time as a user types, speeding up form fill and improving ux. Our data is sourced from USPS, providing the most complete, accurate and up-to-date address database.
  • 8
    DIRO

    DIRO

    DIRO

    Instant verification of utility statements and data for proof of address. All electricity, gas, cable, water, and telecom companies globally. Instantly authenticate bank accounts for consumers and businesses both domestic and international. Allow customers to verify their bank accounts securely, in a matter of seconds, using their login credentials. By integrating with DIRO, customers can be up and running on the same day. Eliminate the risk of account error, incorrect name, and confirm good standing. Allow merchants to verify their bank accounts securely, in a matter of seconds using their login credentials. By integrating with DIRO, merchants can be verified instantly, in any bank, any country. Provide borrowers with an easy and streamlined loan experience. Lenders get access to bank data to make informed loan decisions in real time. Allow vendors to authenticate bank accounts, and proof of address and incorporate documents in real-time to eliminate fake and stolen credentials.
    Starting Price: Free
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