Mu – A Micro App Platform

In plain words

Mu is a platform for building and sharing lightweight single-file web applications directly in the browser. Each app functions as a self-contained utility with built-in storage, authentication, and payment processing. Designed for developers creating small, focused tools like readers or guestbooks, Mu simplifies app development by eliminating setup complexity. Apps are rendered as iframes and can be shared instantly, offering a streamlined alternative to traditional application development.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

Hey all Sharing a new piece of work I've been doing with a friend. Mu is a new micro web app platform which enables building and sharing apps instantly with storage, auth and payments built in. Apps are single file, built in the browser and rendered as an iframe. They're "micro" because they're quite literally tiny…

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