Have you ever wanted an app that just lets you: - connect your own email domain - import your contacts from CSV - create a simple template - bulk send and keep track of sent emails You find something similar, but you need to pay to be able to use it via SMTP? I created this FREE and open source app that lets you do just that! Currently there's a demo deployed on Vercel. The app is still very fresh and I am looking for fellow engineers to join and help me create a commercial version of app!see more
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If you are tired of restrictive, expensive platforms dictating how you manage your outreach, then you need to take a close look at cold0. This is a truly refreshing solution built for those who prefer to maintain complete control over their communication infrastructure. Imagine having the power to connect your own established email domain directly into a streamlined application designed specifically for bulk cold emailing. No more relying on third-party sending limits or paying hefty monthly fees just to utilize your own SMTP credentials. With cold0, you can effortlessly import your valuable contact lists directly from a simple CSV file, craft your message using a straightforward template editor, and then initiate large-scale sending campaigns all from one central, intuitive dashboard. It’s about putting the technical capability back into your hands, ensuring maximum deliverability by leveraging infrastructure you already trust and manage.
What makes cold0 stand out is its commitment to transparency and community, being completely free and open source. This isn't just another tool; it’s a foundational piece of software that you can inspect, customize, and integrate seamlessly into your existing workflow. For marketers, salespeople, or founders looking to scale their initial outreach without breaking the bank, this offers an immediate, zero-cost entry point into powerful bulk communication. You get the essential tracking features needed to monitor what’s been sent, giving you the necessary feedback loop to refine your strategy. It handles the heavy lifting of managing the send process while ensuring that the relationship remains between you and your recipient, mediated only by the reliable connection of your own SMTP server.
We are currently running a fresh demo deployment to showcase its capabilities, and while it is functional right now, this project is actively seeking passionate engineers to collaborate on the next phase. If you have an eye for robust software development and believe in the power of open source solutions, joining this effort means helping shape a future commercial version that will undoubtedly set a new standard for self-managed email outreach. For anyone serious about scalable, cost-effective, and highly controllable email marketing, cold0 offers the perfect blend of simplicity, power, and community-driven development.