Best Free Address Verification Software

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

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.

GoAddress is a UK postcode and address lookup API designed to deliver fast, accurate address data in seconds. It allows developers to search by postcode or full and partial address text using simple REST endpoints. The API returns clean, structured address data that is ready for use in forms, databases, and applications. GoAddress is built for production use cases such as checkout flows, customer onboarding, and internal systems. Address data is refreshed daily to ensure accuracy and reliability. Secure API key authentication and high availability make it suitable for business-critical applications. Trusted by thousands of developers, GoAddress offers a quick setup with no credit card required for the free tier.

SmartAddresser 5 is an all-in-one mailing software developed by SmartSoft. Featuring CASS-certified address verification, PAVE-certified presorting, advanced deduplication technology, job scripting, reporting tool, full support for the IM barcode, and more, SmartAddresser puts unparalleled power and control at your fingertips. SmartAddresser 5's innovative Print Layout Assistant also makes label and envelope design easier than ever before. Important add-ons include MUV module, MailSpotter for SA5, Residential Delivery Indicator (RDI), Mail.DAT, Advanced Sortation Modules, SA5 Light, and more.

Ensure the accuracy of your customer address data with AccuMail Verify. AccuMail Verify is a point of entry address verification and correction API that validates customer addresses before they go into a business' database. AccuMail Verify is designed for rapid deployment in both REST and SOAP environments, is CASS Certified for accuracy, and offers full customization of web forms for seamless integration within apps or website.