The open-source alternative to commercial email validation services
To provide the most accurate, affordable, and transparent email validation service available - whether hosted by us or self-deployed on your infrastructure.
Lex Lab was built out of frustration with existing email validation services that charge premium prices for basic features, hide their methodologies, and lock customers into proprietary systems.
We believe email validation should be:
Advanced features that set us apart from the competition
Our machine learning algorithms detect gibberish, fake, and randomly generated email addresses that traditional validators miss.
Identify and remove spam traps before they damage your sender reputation using our proprietary detection algorithms.
Detect duplicates across Gmail dot notation, plus addressing, and domain aliases - reducing list size by 30-50%.
Get comprehensive analytics and health scores for your entire email list with actionable insights and recommendations.
All our code is open source. Audit it, customize it, or self-host it completely free with unlimited validations.
Pay with Bitcoin, Ethereum, or USDT for complete privacy and instant account activation. No credit cards required.
Fast, reliable, and scalable email validation infrastructure
High-performance backend
10K+ emails per minute
Direct mailbox validation
DNS validation
Enterprise-grade encryption
Deploy on your infrastructure
Principles that guide everything we do
Our code is open source. Our pricing is public. No hidden fees, no surprise charges. What you see is what you get.
Your email lists are your business. We don't sell data, track users, or share information with third parties. Self-host for complete control.
Simple, honest pricing. No hidden fees. No surprise overages. Pay for what you use, cancel anytime.
We continuously improve our algorithms, add new features, and stay ahead of email validation challenges with AI and machine learning.
Join thousands of businesses using Lex Lab for email validation