Postcoder Alternatives (September 2025)

Improve data quality by capturing correct UK addresses. Boost conversions and user experience with postcode address verification and geocoding technology.

Verify/Validate Addresses using PostGrid’s CASS (USPS) and SERP (Canada Post) certified Address validation and verification API and services.

With our free postal address verification and international address validation service you can easily verify if any USPS or international postal address is valid and deliverable.

Address Verification for USPS & International Addresses. Try our easy-to-use APIs, list processing tools and more.

Address Verification for USPS & International Addresses. Try our easy-to-use APIs, list processing tools and more.

MailboxValidator email validation clean email lists and reduces bounce. It connects to the mail server and checks whether the mailbox exists or not.

Simple and powerful email verification JSON API using SMTP, typo checks, syntax validation, and free and disposable provider filtering. Free for personal use.

IP Geolocation API - Our global IP address data helps companies to make intelligent & programmatic decisions.

Improve your email deliverability with Bouncer's robust email verification and deliverability platform. 🌐

Lookup the location of any IP Address with ipdata's IP Geolocation API. ipdata is fast, accurate and is used by 20,000+ developers.

Improve domain reputation and increase the quality of your mailing list by validating emails before sending a campaign, or at the point of capture.

PlaceKit is a worldwide geocoding API providing fast and accurate address autocomplete, store locator, and two-way geocoding for your app.

Free IP Geolocation API - lookup any IP address

Optimize your email strategy with ZeroBounce. We offer top-tier email validation, list cleaning, and address verification to reduce spam traps and enhance deliverability.

Customer Data: Verified · Fast, accurate and intuitive data verification software to help businesses work smarter. · Address Auto-Complete · UK Postcode Lookup.

Improve your email sender reputation and reduce bounce rates: real-time email validation API and bulk email list cleaning. Free trial & 100% accuracy.

Melissa’s address verification systems standardize your US, Canada and International postal addresses – CASS and SERP Certified.

Free IP Geolocation API, the most accurate data, use our API to quickly and easily integrate the location of visitors into your script or website.

With the Gamalogic Email validation API tool, you can clean your email list and lower your bounce rate during email campaigns. Try it for free today!

Enhance digital journeys with Woosmap's easy-to-integrate location APIs, SDKs, and widgets for web and mobile applications.

Free IP Geolocation API and Accurate IP Database provides country, city, zip code, ISP data in REST JSON and XML format from any IPv4 and IPv6 Address.

Improve domain reputation and increase the quality of your mailing list by validating emails before sending a campaign, or at the point of capture.

Uncover User Locations with Precision using ipstack - Discover Real-time IP Geolocation Data with location JSON API. Elevate your websites insights now!

Reduce bounce rates, stop fake sign-ups and combat fraud with award-winning email verification solutions. Real-time API or batch file options available.

With our real-time phone number validation service you can easily verify if a phone number is real and valid. We also offer Phone Number List Cleaning and an Online API for Phone Number Validation.

Get accurate IP address information with IPinfo. Trusted by 400,000+ users, we handle more than 40 billion API requests monthly. Sign up for free account today.

Verify your email list in minutes, or integrate real-time email verification into your app with our API. Over 18 billion emails verified. Get started for free.

Bulk email verifier. Get rid of spam traps, bounces,and disposable emails. Start with 100 FREE email validations! Secure & accurate bulk email validation

Mailcheck is an easy-to-use, fast, and efficient email validation tool with an API integration feature for on-the-go validation.

The most accurate email validator algorithm to identify and remove bad email addresses. Best sales starts with a better email deliverability. Enjoy a free trial.

Email Address Validation and Email List Cleaning Service reduces bounce rates. Quick Email Verification Service is the right platform to verify email list and improve deliverability.

Use Our Data Quality Suite to standardize, verify and correct all your contact data: postal address, email address, phone number and names.

Free real-time email verification service. Easy to use. Start using in 30 seconds

Email Validation and Verification, Email Checker and Bulk Verify Tool. Using DeBounce remove invalid, disposable, spam-trap, syntax and deactivated emails.

Unlock intelligence about the person behind the email address with email validation, data enrichment, identity matching, and fraud protection.

Accurate real-time email validation service: upload and clean your list or integrate email verification into your app with our API. Get started for FREE!

GeoPostcodes provides the world’s most comprehensive postal/zip code database. Complete, accurate, always up-to-date and enterprise-ready.

Affordable Google Maps alternative for Reverse Geocoding, Geocoding, Maps and Routing APIs. Generous free tier, offering Enterprise-grade APIs for everyone!

Email API and SMTP relay to not just send and measure email sending, but also alert and optimise. We provide you with tools, expertise and support needed to reliably deliver emails to your customers inboxes on time, every time.

Email checker online tool. Ensure email accuracy with our efficient tool. Verify email addresses instantly and improve your communication reliability. Try for free!

Check Email Address Online using our Email Verification Service ⚡ Proofy.io ⚡ First 500 checks for free! 👨 Check if an Email address is valid or not

Abstract provides powerful APIs to help you enrich any user experience or automate any workflow. Used by 10,000+ developers worldwide.

The powerful email verification tool helps you validate and clean your email list seamlessly, ensuring verified email subscribers and high deliverability.

The most accurate bulk email checker. Complete email address verification in seconds. Clear lists with online mail checker for free.

Bouncify is a Leading provider of bulk email list cleaning and email verification service. Run our bulk email verification tool through your list of emails to remove hard bounces and keep your mailing list clean and engaged with 99% accuracy. We provide email list validation to marketers from all countries.

Incoming Email for your Web Application, send and receive email via HTTP Post in the Cloud

The Most Comprehensive Email Verification Service from only $59: Email Checker, Email List Verify, Bulk Email Verifier, ESP Integrations, and Automatic Email Verification

Get rid of spam traps, bounces, disposable or catch-all emails with bulk email verifier or real-time API. Start with 100 FREE email verifications!

Scrubby is the only complete email validation tool that goes beyond standard SMTP validation, uniquely incorporating risky and catch-all email checks to provide complete validation, ensuring an impressive 98% deliverability for your entire list.

Discover Routes API, which helps with efficient global routing and optimized delivery route planning to move people and goods from point A to Z.

Onboard & engage users in 90s with phone identity, verification, OTP & SMS notification. Send reliable voice/SMS OTP with Twillio, MessageBird, Nexmo, Infobip, etc. from 1 API.

Clean your email list with Mailercheck's email verification tool and improve deliverability with our email testing suite to boost email marketing ROI.

Powerful Transactional Email APIs that enable you to send, receive, and track emails, built with developers in mind. Learn more today!

Experience the power of Listclean: the simple, AI-driven email verification service with unparalleled accuracy. 100 verifications free. Start trial today!

AccuZIP Postal Software and Data Cleansing For Direct Mail Marketing

Integrate in minutes and send transactional emails via our REST API or SMTP. Scale with our reliable global infrastructure and deliver emails to your customer's inbox instantly.

Unlock the power of your communications data. The Nylas communication APIs remove complexity & empower teams to create seamless user experiences.

Discover the owner of any email address with our advanced reverse email lookup service. Instantly find the full name and public records of email owners. Try our powerful email address search tool now!

World’s Most Expressive API for building Disruptive Prop-Tech.

Get the best email validation tool for busy businesses. Fully automated, completely hands-off, this email verification tool does it all for you.

IP geolocation and network data from the creator of GeoIP. Download and host the data locally to eliminate network latency and per-query charges.

Need an API to convert files from your application? Use Zamzar - 100s of formats supported - Documents, Videos, Images, Audio, CAD, eBooks and more

An API to convert HTML/CSS documents to PDF. PDFShift is the reliable, Up-to-date and high-fidelity conversion API with no maintenance costs.

Random email address and phone number generators. Use SMS and email in otp tests, 2fa verification, and marketing.

Mailosaur removes the frustration of testing everything a user might do. 
Test password resets, replies, two-factor logins, and more.

IP2Location is an IP geolocation service provider. Learn about IP2Location databases and IP2Proxy services.

Access current and historical foreign exchange rates with Fixer API. Get free, lightweight currency conversion for your applications. Click now.

Keep your email list clean with our bulk email verification service. Verify daily 100 email address for free and avoid sending emails to spam / invalid account.

Verify Email Addresses Effectively ✔️ Keep Your Mailing Lists Up-to-date With Email Validation Tool ➡️ Get A Free Trial for 7 days

api.video lets you quickly and securely deliver on-demand and live-stream videos directly from your website, software, or app.

Power your applications with real-time payment data. Build innovative card-linking applications by connecting Visa, Mastercard and Amex cards to loyalty and marketing services all in one place.

Simple, scalable and reliable. Hosted realtime APIs loved by developers and trusted by giants. Build live dashboards, notifications, geotracking, chat and more.

If you want excellent email deliverability, our services are highly dependable. Reach out to us for bounce checker and hunter email.

Entri is the API for custom domains. We make it easy for your application to connect, secure, sell, and power custom domains.

Email Delivery Platform to test, send and control email infrastructure in one place. Great for dev teams. Start today - Sign Up free!

From signing to filing, it's never been easier or more affordable to engage customers with API toolkits from the leader in online legal services.

Geofencing, maps, and geo-compliance, all in a single cost-effective platform.

Explore a highly curated API marketplace focused on reliability, scalability, and quality. Access AI & Machine Learning, Content, Finance, Stock, and more APIs.

Start sending emails with our top-rated service. Sign up for free now to streamline your email sending process with API or SMTP.

UniOne is a transactional email service: you can send Transactional Emails simple and cheap with the help of platform API Email UniOne.

Placekey is a universal place identifier trusted by organizations, businesses, and geospatial scientists to easily represent and unify location data.

Clearout is a powerful platform that offers email validation, email finder and prospecting services to help businesses find potential customers.

Test new user signups, transactional emails, spam scores, and more. Get started on our free forever plan with unlimited email addresses and mailboxes.

Validate users across SMS and preferred channels at scale with the Twilio Verify API, a turnkey, passwordless authentication solution that enables seamless and secure user onboarding, reduces fraud, and optimizes delivery rates without the heavy lifting. Twilio handles all your connectivity, channels, OTP generation, and more—so you don’t have to.

Free and reliable screenshot api for website capture.

Acteur de référence en data quality depuis 2007 Qualifiez vos coordonnées clients et travaillez avec des données fiables Découvrez nos solutions Demandez une démo +30% de donnéesexploitables Jusqu'à+20% de délivrabilité https://www.capency.com/wp-content/uploads/2024/03/video-capency.mp4 Présentation des solutions La data quality à la carte La plateforme DQM de Capency, la plus complète du marché grâce à sa suite de

APIs and SDKs for AI-powered maps, location search, turn-by-turn navigation, and geospatial data in mobile or web apps. Get started for free.

PDF.co Web API for extracting, editing, converting, merging, and splitting PDF documents. Save time with our powerful tools.

Unifiez et fiabilisez vos données clients à chaque point de contact ou directement depuis votre CRM avec les solutions DQE.

APIs Delivering Global Verification and Programmable Communications as a service. SMS, Voice, and phone number intelligence solutions. Get started now.

Sales, marketing, and recruiting professionals use our tools to find emails, verify emails, and buy email lists. 98% accuracy. Get 50 leads for free.

Access our top-tier SMS gateway services at an affordable price globally. No subscriptions and full compliance. Create a free account >>

Improve mail deliverability and save on postage with CASS and Pave Gold certified mailing software for MAILERS+4 data with Melissa Direct.

ArcGIS Data Reviewer enables GIS data quality management & validation by providing tools to automatically detect errors, configure out-of-the-box checks & track data health.

Power everything from live chat to data broadcast - reliably, securely, and at serious scale with Ably. The largest WebSocket-based pub/sub platform.

Nextbillion.ai provides industry’s most powerful APIs and SDKs to solve routing and optimization problems. Seamlessly integrate our products with your existing infrastructure.

Secure data extraction OCR API, data capture mobile SDK, and toolkits to liberate trapped data in your unstructured documents like invoices, bills, purchase orders, checks (cheques) and receipts in real-time.

Get your custom, branded URL Shortener up and running in minutes. Powering communications, commerce, marketing, advertising & more. URL Shortening API.

Easily integrate electronic signatures into your apps and workflows with our secure, simple, and fast eSignature REST API. Create a free sandbox today.