Enterprise-grade email validation for founders. Check any address in 50 ms with 97.3 % accuracy. Pay-as-you-go from $0.0003/email—first 500 checks free. Stop overpaying for bounces. Launch day: win 1 M credits!
After launching Released, our AI assistant for vacation rental hosts, we ran into a big problem: email bounces.
we needed to validate emails fast, accurately, and affordably, but most tools were overpriced, clunky, or just didn’t work well enough.
So we built Lero, a blazing fast, accurate, and affordable email validator made specifically for founders who want clean lists without blowing their budget.
50 ms validation speed
97.3% accuracy
From $0.0003/email — pay-as-you-go
First 500 emails free
Protect your sender reputation
Clean lists = higher conversions, fewer bounces
Special for Product Hunt:🎟️ We’re giving away 1,000,000 free credits to a user who signs up today💥
Use code PHFAM to validate 10,000 emails for just $0.99
Lero started as a tool I built to solve my own pain. Now it’s here to help other founders avoid the same trap.
Try it out and let me know what you think.
It’s still early days — We know it’s not perfect yet. But we’re fully committed to making it better every single day.
Lero's fast validation speed and affordable pricing are a huge relief for founders dealing with email bounces! For users with large email lists, does Lero have any plans to offer bulk validation discounts or more advanced list management features?
@yongxiang_wang Appreciate that, Evan, totally hear you. Bulk validation pricing is on the roadmap, along with smarter list cleanup and auto-tagging tools.
We’re building towards a flow where Lero doesn’t just validate, it helps you act on the data. Super grateful for your input 🙏
@jun_zhao3 Hi Jun - thanks a lot for flagging the issue! It was caused by a temporary spike in demand, but it’s now fully resolved. I’d love to make up for the inconvenience — feel free to email me at javier.gil@leromail.com and I’ll personally send you a coupon code to get free credits 🙌
Appreciate your patience.
Last Thursday was nothing short of madness - in the best possible way. Lero debuted, and with your votes & feedback we finished Top 16 Product of the Day. Couldn t have scripted it better for a first launch.
Lero was born because my first startup kept face-planting on launch day - half our emails bounced into the void. I hacked together a tiny validator to fix that pain, the tool snowballed, and here we are.
This tool offers a fast and reliable solution for verifying email addresses, ideal for startups and growing businesses. It helps reduce delivery failures by ensuring addresses are accurate before you hit send. With a flexible pricing model and a generous free tier, it’s a great fit for teams looking to improve outreach efficiency without breaking the bank. Plus, the launch offer adds extra value for early adopters.
Lero – Email Validator
Pros:
Lero provides a straightforward solution for validating email addresses, with support for both single checks and bulk uploads. It offers an API for integration into existing systems and operates on a pay-as-you-go pricing model, which can be cost-effective for teams with variable usage. The platform emphasizes fast processing times and data security, including GDPR compliance and hosting on ISO 27001-certified infrastructure.
Cons:
As a newer product, long-term performance and scalability in high-volume environments remain to be fully demonstrated.
Lero - Email Validator
Hey Product Hunt!
After launching Released, our AI assistant for vacation rental hosts, we ran into a big problem: email bounces.
we needed to validate emails fast, accurately, and affordably, but most tools were overpriced, clunky, or just didn’t work well enough.
So we built Lero, a blazing fast, accurate, and affordable email validator made specifically for founders who want clean lists without blowing their budget.
50 ms validation speed
97.3% accuracy
From $0.0003/email — pay-as-you-go
First 500 emails free
Protect your sender reputation
Clean lists = higher conversions, fewer bounces
Special for Product Hunt:🎟️ We’re giving away 1,000,000 free credits to a user who signs up today💥
Use code PHFAM to validate 10,000 emails for just $0.99
Lero started as a tool I built to solve my own pain. Now it’s here to help other founders avoid the same trap.
Try it out and let me know what you think.
It’s still early days — We know it’s not perfect yet. But we’re fully committed to making it better every single day.
Built by founders, for founders.👉 Visit Lero
Lero's fast validation speed and affordable pricing are a huge relief for founders dealing with email bounces! For users with large email lists, does Lero have any plans to offer bulk validation discounts or more advanced list management features?
Lero - Email Validator
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Lero - Email Validator