MailboxValidator suits teams that need to check individual addresses through an API or validate uploaded lists in bulk.
Free plan Free trial From $19.95 one-time WebAPI
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Best Email Validation Software 2026
Email validation software checks email addresses before you send messages or store them. These tools can run through an API, a web app or a browser extension, depending on the product.
Compare the platform you need, the pricing model and access to a free plan or trial.
02
Hunter
Hunter may suit marketers, salespeople, recruiters and others who need to find professional email addresses or run email outreach.
WebBrowser extensionAPI Record5.2 Visit
03
QuickEmailVerification
It suits marketers, developers, agencies and businesses that need to check email lists or verify addresses during signup.
WebAPI Record5.0 Visit
04
XVerify
WebAPI Record5.0 Visit
05
APILayer Marketplace
The marketplace may suit developers prototyping applications as well as enterprise engineering teams in fintech, e-commerce, or SaaS.
WebAPI Record4.9 Visit
6
Emailable
WebAPI $32.30 a month Record4.9 Visit Emailable suits teams that need to verify addresses in bulk or at the point of entry, and developers connecting checks through an API.
Before you choose
Choose how you will use it
Check whether the tool offers the platform that fits your workflow: API, web or extension.
An API can suit software workflows, while a web app or extension may fit manual checks. Confirm the platform before you sign up.
Look for free access
A free plan is available from products on this list. A free trial is also offered by products on the list.
Check what kind of free access a product shows on its own pricing page, then decide whether it matches your expected use.
Compare pricing models
Listings use free, freemium or paid pricing models. Paid pricing notes range from one-time charges to monthly plans.
Read the pricing note for the product you are considering.
Check the current offer
Pricing and plan terms can change. Review the product page before you commit, especially when a listing mentions a trial, a free plan or a starting price.
Questions
What does email validation software help with?
It helps you check email addresses before sending messages or storing them.
Which platforms do these tools support?
Products on this list run on an API, web app or browser extension. Check the individual listing for its platform.
Can I try an email validation tool for free?
Products on this list offer free plans or free trials. Check the listing and the maker’s current terms.
How do pricing models differ?
Listings use free, freemium or paid models. Pricing notes can describe a monthly plan, a one-time charge or a starting price.
Should I choose an API, web app or extension?
Choose the platform that matches your workflow. An API suits software workflows; a web app or extension suits browser-based checks.
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