What is Hydrozen.io?
Hydrozen.io is an uptime monitoring service that helps you track the availability of websites, APIs, cron jobs, domains, and SSL certificates — and notifies you the moment something goes offline.
It started as a commercial product and has since transitioned into a non-commercial project. New signups are no longer accepted. The service continues to run as a free tool for existing users and open-source projects.
Who is behind it?
Hydrozen.io is owned and operated by Raghu Chinnannan under A2 Ventures , a bootstrapped independent venture studio that builds and maintains digital and physical products with a long-term perspective.
A2 Ventures is guided by a simple belief: build things that solve real problems, keep them simple, and be willing to maintain them for years. Rather than chasing rapid growth, the studio focuses on sustainable, owner-operated products — from SaaS tools and developer utilities to open-source software and niche consumer brands.
Hydrozen.io reflects that philosophy: it was built to be the simplest possible uptime monitoring tool, with no unnecessary complexity.
Why does Hydrozen.io still run?
Even after stepping back from commercial operations, Hydrozen.io continues to serve a small number of users — particularly open-source maintainers who rely on it to monitor their projects. Keeping it running is a small cost worth bearing for the community it still serves.
If you maintain an open-source project and would like to use Hydrozen.io, feel free to reach out at [email protected] .
More from A2 Ventures
A2 Ventures builds and maintains a range of products across SaaS, developer tools, and consumer brands. Here are some of the other projects:
| Product | Description |
|---|---|
| Nitrozen.io | Key-value store and data management |
| Zenshot.pro | Screenshot and visual capture tool |
| Stampmypdfs.com | PDF stamping and watermarking |
| Textpro.xyz | Text processing and transformation tools |
| A2 Plugins | Plugins and extensions |
| A2.games | Indie games |
| The Copper Shop | Consumer brand |
| MyWebL.ink | Link management |
Visit a2ventures.group to see everything.
Contact
For any questions or support, email [email protected] .
To learn more about A2 Ventures and the other projects Raghu is working on, visit a2ventures.group .