Nano-web – a low latency one binary webserver designed for serving SPAs
I'd found that whilst there's a lot of good options out there for webservers, I was looking for something that is a single deployable binary for usage with containers or unikernels and solves some of the problems that you get with other setups like nginx. It uses a single compiled binary, it's going to have extremely low latency on account of caching all files in memory at runtime, and also the fun feature and really useful that's good for SPAs (e.g. Vite) or things like Astro is that you can inject configuration variables into it at runtime and access them from within your frontend code, so…
In plain words
Nano-web is a single-binary webserver designed for serving single-page applications in containerized environments. It caches files in memory for low-latency delivery and allows runtime injection of configuration variables, eliminating the need to rebuild images for different environments. The tool addresses common deployment challenges with traditional webservers and works well with frameworks like Vite and Astro.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
I'd found that whilst there's a lot of good options out there for webservers, I was looking for something that is a single deployable binary for usage with containers or unikernels and solves some of the problems that you get with other setups like nginx. It uses a single compiled binary, it's going to have extremely low latency on account of caching all files in memory at runtime, and also the fun feature and really useful that's good for SPAs (e.g. Vite) or things like Astro is that you can inject configuration variables into it at runtime and access them from within your frontend code, so you don't have to rebuild any images for different environments as part of your CI. Whilst I'm sure this problem has been solved time and time again, I could never get a solution to be quite right. Also, serving things like Astro from S3 gets to be tricky because CloudFront doesn't support index pages in subdirectories so the routing breaks. This fixes this. Use it or don't, I think it's a cool little project and it's been a while since I worked on and released something :)
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