Mmar – open-source, zero-dependancy, cross-platform HTTP tunneling
Hey HN! For the past couple of months, I've been working on and off on a cool project I'm excited to share. mmar (pronounced "ma-mar") is an open-source, zero dependency, cross platform and self-hostable HTTP tunnel built in Go. It allows you to easily expose your localhost to the world on a public URL. You can easily create an HTTP tunnel right away for free on a randomly generated subdomain on "*.mmar.dev" if you don't feel like self-hosting. This isn't something new, in fact there's quite a few of alternative HTTP tunneling tools out there. mmar is my attempt to optimize for a super easy…
In plain words
Mmar is an open-source HTTP tunneling tool built in Go that exposes local servers to the internet via public URLs. It requires no dependencies and runs cross-platform, offering free tunnels on randomly generated subdomains or self-hosting options. Designed for developers seeking simplicity, mmar provides an alternative to existing tunneling solutions with a focus on ease of use and straightforward implementation.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hey HN! For the past couple of months, I've been working on and off on a cool project I'm excited to share. mmar (pronounced "ma-mar") is an open-source, zero dependency, cross platform and self-hostable HTTP tunnel built in Go. It allows you to easily expose your localhost to the world on a public URL. You can easily create an HTTP tunnel right away for free on a randomly generated subdomain on "*.mmar.dev" if you don't feel like self-hosting. This isn't something new, in fact there's quite a few of alternative HTTP tunneling tools out there. mmar is my attempt to optimize for a super easy developer experience and simplified implementation. None the less, I had a blast building it and I think developers could find it pretty useful. Additionally, I documented the whole process of building mmar through devlogs. You can read about the thought process and implementation details here (https://ymusleh.com/tags/mmar.html). If I would suggest one devlog to read, I highly recommend devlog 5 (https://ymusleh.com/mmar-devlog-005.html). I describe how I built a (very) basic DNS server just to run simulation tests for mmar (a bit of an overkill, but a fantastic learning experience). I dive deep into the DNS protocol and explain why I needed to implement it. Finally, I would love to hear your thoughts and feedback. If you try mmar out, let me know!
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