Life & fun · alternatives · 2026
24 alternatives to I built a tool to stop cold email spam (Unspam.io)
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…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. I built a tool to stop cold email spam (Unspam.io) launched in 2024; newer entries below may have overtaken it.
- 1
Unspam AI▲385See how your subscribers read your emails with our AI inbox
2024 · unspam.email · its alternatives →
- 2
Unspam.email▲299Email spam checker and newsletter heatmap prediction.
2020 · unspam.email · its alternatives →
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Hello Inbox▲283Hey HN, I built an email deliverability SaaS with a RAG system. It's trained on all my knowledge and hundreds of real deliverability use cases from 4+ years experience as an Email Deliverability Specialist on Upwork. It solves a frustration problem a lot of businesses are experiencing. I'm looking for feedback so let me know in the comments.
Aug 2026 · helloinbox.email · its alternatives →
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You've Got Spam▲305A new tool that lets you spam back the spammer
2020 · youvegotspam.mschfmag.com · its alternatives →
- 7
Hi HN :) really excited to share this with you. The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels…
Jul 2026 · captchainbox.com · its alternatives →
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Always land in Inbox by establishing sender reputation
2021 · warmupyour.email · its alternatives →
- 10
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…
2025 · verifyemailai.com · its alternatives →
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Alex Berman, CMO at InspireSumo talks cold emails
2015 · its alternatives →
- 12
After struggling with low open rates in my small lifestyle software business, I decided to go down the rabbit hole that is email deliverability, learned a bunch of things I didn't know even after being in tech for a decade. A/B tested a bunch of things and finally got good results. I then decided to put together a comprehensive checklist of everything I learned and got me results to share with others. Now I help companies fix poor email deliverability and boost their email ROI. I want this checklist to be a repository of email best practices so I'm always looking to improve and update…
2023 · helloinbox.net · its alternatives →
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Hi HN, I'm excited to share a project I've been working on: UnwrapEmail(https://unwrap.email), an API designed to detect and verify disposable or temporary email addresses. Features: - Detect disposable email addresses - Extract labels from email addresses (e.g., Gmail) - Normalize addresses by removing labels or special characters (e.g., Gmail) - Validate MX records of domains - Check whether it’s safe to send to a given email to reduce bounces and maintain sender reputation Why I Built This: As the owner of an AI wrapper app, I've seen decent traffic thanks to SEO efforts + ads,…
2024 · unwrap.email · its alternatives →
- 14IM
Hi Guys, I'm Spencer and recently built AutoUnsubscribe to keep on top of my email subscriptions. The basic idea is: Automatically unsubscribe from unwanted emails that you never open, so you can focus on the emails that matter, saving yourself time and effort. I find overtime I accumulate hundreds of email subscriptions accidentally, especially when I ran an ecommerce business where our emails seemed to end up on all our suppliers, and their suppliers mailing lists. Some people stay on top of unsubscribing easily, however it's something I've always struggled with, especially having ADHD. I…
2023 · autounsubscribe.me · its alternatives →
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Generate personalized cold outreach emails with AI
2025 · ghostlead.vercel.app · its alternatives →
- 16
You use Twitter, Facebook as well as email to communicate with your customers? With all these different services, it has become very hard to manage and keep track of all the conversations happening. My co-founder and I noticed this some months ago and asked people how they would like to handle this. And so we have come up with a new solution. We launched into public beta about two weeks ago. The problem was: We had a very hard time explaining to people how we help them and why that's relevant. We were too technical and nobody really understood exactly what it was that we did. So we took a…
2011 · suplify.me · its alternatives →
- 17AC
Hi everyone. Over the weekend, I built a tool for finding contacts using AI. Here's the backstory. My partner and I are working on an agrotech startup – we’re building telematics for agricultural machinery. Most of our sales come through cold outreach: you search for contacts, message them, call, make deals and so on We also do indiehacking, because agrotech is slow and a sometimes boring. At some point, we got tired of manually collecting contacts from the internet, so we built a AI tool for that. It turned out to be super helpful, and we decided to share it with the world. If anyone here…
2025 · leadloom.xyz · its alternatives →
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Hey HN, I built Cold Craft, a Chrome extension that helps draft cold outreach messages quickly and naturally. I often struggled to write outreach emails or LinkedIn messages that didn’t sound robotic or forced, and found myself spending ages rewording them. As a developer, I thought there had to be a better way. With Cold Craft, you just select the recipient type, purpose, and tone, and it generates a tailored message instantly. I built it to keep the flow simple: minimal clicks, clean UI, and fast results right inside the extension popup. It uses OpenAI for generation. Building it taught me…
2025 · cold-craft.ai · its alternatives →
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Stop spamming inboxes. Start trusted conversations.
Feb 2026 · blue-chimp.com · its alternatives →
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Hey HN, I was tired of writing HTML emails and one day was going through reddit specifically searching for people who hated writing HTML emails and heard a lot of complaints from solopreneurs and marketers as this is a very boring task and many marketers and solo founders have much more important tasks to take care off. So I decided to build HTML email to solve this. My friends have already saved hours using this product. This is my 11th product and I think this solves a problem many folks are struggling with. Feel free to share your views.
2024 · html-email.com · its alternatives →
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- 22EB
Doing my best to make email fun. If your boss asks why you didn't get back to them explain you accidentally used the spam bomb on their emails.
2025 · email-blaster.vercel.app · its alternatives →
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AI cold emails that sound human
Apr 2026 · rarata-outreachflow.netlify.app · its alternatives →
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MunelMail▲12Personalized Emails That Turn Silence into Conversation
2025 · munelmail.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →