I made email validation tool
Hey HN, I’m a solopreneur and have been in the SaaS space for the past 3 years. My last 3 startups failed, and a common challenge in all of them was figuring out how to reach my audience. Recently I started with cold outreach (its a struggle, since I dont have much experience with marketing). I am finding leads mainly using exa.ai websets (web vector search, extremelly good for multiple use cases, recommend checking them out) and then sending them through smartlead. I ran the campaign for the past 30 days and 12-15% emails always bounced. This wasted my email credits & chances of reaching…
I made email validation tool launched on May 27, 2025 with 7 votes, #3,816 of 7,905 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
Email Validation and Verification, Email Checker and Bulk Verify Tool. Using VerifyEmailAI remove invalid, disposable, spam-trap, syntax and deactivated emails.
In the maker’s words, at launch
Hey HN, I’m a solopreneur and have been in the SaaS space for the past 3 years. My last 3 startups failed, and a common challenge in all of them was figuring out how to reach my audience. Recently I started with cold outreach (its a struggle, since I dont have much experience with marketing). I am finding leads…
Does a similar job
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Hey HN, I'm a bootstrap SaaS founder that trying to grow my micro SaaS. I've been doing pivot many times and this may be the last straw. I realized that marketing and sales are key in building business but cold outbound is suck! So I built a tool to help SaaS founders identify unhappy customers from their competitors to pitch their SaaS. This feature is specifically requested by Peer - Cal.com CEO from my interaction with him here - https://x.com/heykaiyo/status/1821216800610382013 I hope this small tool would be helpful. Would love your feedback pls. Anyone…
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Hi HN! I'm Louw, founder of the enterprise insurtech scale-up Root[0]. Over the last 8 years, my inbox has been flooded with unsolicited emails, especially since early 2023. Recruitment services, outsourced software development agencies, and a crazy amount of lead generation services (thanks, Apollo!) drowned my inbox. To solve this, I created Unspam. Initially, it was a simple tool for myself and fellow founders to reduce noise. And it worked — about 10% of my emails were swiftly and accurately categorized as unsolicited messages. Given its success, I've decided to package and share Unspam…
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Hi there, So a buddy a couple of days ago came up with the idea for a new SaaS product regarding gpt and image generation. We did a quick MVP that barely works, it breaks almost 50% of the time but we still wanted to validate the idea before going all in. We have almost 1k followers on Twitter together. Did a quick post describing the idea with a stripe link in the comments with a 5$ value, no landing page, and no shipped product. In exchange, the buyers become beta users. Around 30 mins later we got our first sale next 30 mins another 5$ and so on. Do we consider the idea validated? The…
- IAI accidentally built a startup idea validation tool2025 · validationly.com · ▲15
I was working on validating some of my own project ideas. While trying to find how to validate my idea, I realized the process itself could be turned into a tool. A few late nights later, I had something that takes any startup idea, fetches discussions, summarizes sentiment, and gives a quick “validation score.” It’s very rough, but it works, and it’s already making me rethink a few of my own ideas. It's still a work in progress. I don't actually know what I'm doing, but I know it's worth it. Honest feedback welcomed! Live demo here: https://validationly.com/
ResletterJan 2026 · resletter.com · ▲13I’ve launched a few SaaS products before, but this time I built something I’m genuinely excited about. I kept seeing a real pain among SaaS founders and devs: email marketing. If you run a SaaS and you’re not using email marketing, you’re honestly missing out. It’s still the best way to engage and retain your users. That’s why I built Resletter, an email marketing platform made specifically for SaaS founders and developers. No bloated UI, no unnecessary complexity like Mailchimp, Brevo, or other traditional email marketing tools. Don’t believe me? Try the free plan, connect your Resend…
ReachFastAug 2026 · reachfa.st · ▲8I do cybersecurity consulting, so I do outreach every single day, and as you probably know, cold LinkedIn outreach usually has a very low response rate. I've also started launching SaaS products, and I know people running Etsy shops and e-commerce stores and getting users, even for free SaaS, is hard. Meanwhile, people publicly ask for products and services every day on social media. That's why I launched ReachFast: 1. You enter your SaaS website, Etsy shop, App Store /Google Play page, Fiverr profile, even a Skool community link 2.No settings, no keywords, no linking your social…
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