Global address verification
The fastest way to capture verified addresses and contact details from customers on your website and mobile app.
The hero includes a visual product demo with five examples. Slide one shows address lookup and validated checkout delivery details. Slide two shows bank account validation during direct debit setup. Slide three shows email address validation before sending a receipt. Slide four shows mobile number validation during a callback request. Slide five shows one-time password verification for authentication.
Used by over 10,000 leading organisations worldwide
The ultimate toolkit for customer data verification
Postcoder helps you build forms that are fast to complete and hard to get wrong.
Address lookup
Capture addresses using postcode lookup or address autocomplete.
Learn more ➜Mobile validation
Capture valid mobile phone numbers from your customers.
Learn more ➜OTP verification
Protect your customer accounts with OTP SMS verification.
Learn more ➜Bank validation
Verify bank accounts for direct debits and money transfers.
Learn more ➜Email validation
Capture valid email addresses from your customers.
Learn more ➜
Award-winning with top performance, easy admin and great support
Businesses rate Postcoder 4.7 stars out of 5 on the world's most trusted software marketplace.
"Having a more simplified checkout page with the help of Postcoder has had two major benefits to our business. Faster checkouts by customers who haven't had to type in their full address, a much simpler customer journey and a major reduction in data errors; where we saw a big drop in incorrect details entered."
Alex Woods Digital Marketing Executive / Victorian Plumbing
"We picked Postcoder because the API is simple to use and it supports many countries which we want to scale out to."
David Annez Head of Engineering / loveholidays
"The reason we like Postcoder is that the rooftop lat/long coordinates have proven to be far more accurate than any other service and Postcoder has hugely increased our successful delivery rates."
Laura Bailey E-commerce Product Manager / Pasta Evangelists
"Postcoder offers a seamless integration with our services. It is very popular with our customers."
James Gutterson Commercial Manager / Signicat
"Postcoder has been great; there has been a noticeable quality increase in our campaigns. In some the pickup rate went from 30% to 60-70% and our appointment ratings for a campaign went from a 15% average to 40% for one client!"
Daniel Jones IT Technician / Lead Pronto
"Postcoder is a single API that provides all the features we need... Rather than integrate several APIs, we only had to integrate one."
Carl Horn Head of Digital Servicing & Customer Transformation / Capquest
"Postcoder ensures that all the address data, the mobile number and the email addresses that our customers give us are correct. It really speeds up the process for our customers."
Julie Taylor Operations Director / Barrhead Travel