miu
Kenji Yamamoto
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About this app
miu is a simple, lightweight text and code editor designed to make everything from quick daily notes to Markdown writing and programming feel effortless. Built with a focus on instant responsiveness and a clean, distraction-free interface that is easy on the eyes, miu offers a natural and comfortable writing experience across iPhone, iPad, and Mac. [Key Features] • Fast and Responsive Open the app and start typing right away. Whether you are jotting down a quick thought or editing a large text file, miu stays smooth and responsive. • Clear and Readable for Both Writing and Coding Supports syntax highlighting for 49 language categories (over 120 file extensions), including HTML, CSS, JavaScript, Python, Swift, C/C++, Markdown, and JSON. Built-in Emmet support lets you expand HTML and CSS abbreviations with a single tap. • Built-in Live Preview Preview Markdown, HTML, SVG, Mermaid diagrams, and LaTeX math equations right beside your text—completely offline. • Automatic Character Encoding Detection Automatically detects UTF-8, Shift_JIS, EUC-JP, UTF-16, and other international encodings so your files open cleanly without garbled text. • Thoughtful Editing Tools Includes Find & Replace (with Regular Expressions), multi-cursor editing, line numbers, word wrap toggle, and full support for both Light and Dark Mode. • Privacy First No ads, no tracking, and no data collection. Everything works 100% offline on your device. Whether you use it as an everyday notepad or a reliable code editor, we hope miu makes your writing time a little more enjoyable.
What's new
Version 1.0.51 · Nov 11, 2026
Thank you for using miu. Version 1.0.50 expands syntax highlighting and comment toggling to 65 language categories (over 230 file extensions, build files, and dotfiles): • Full Lisp Family Support: Added syntax highlighting, ';' line comment toggling, and '#| ... |#' block comments for Common Lisp (.lisp, .lsp, .cl), Emacs Lisp (.el), Scheme (.scm), Racket (.rkt), Clojure (.clj, .cljs, .edn), Hy, Fennel, and Janet. • Major Assembly Enhancements: Expanded highlighting for x86/x64 (SSE/AVX/AVX-512), ARM/AArch64, RISC-V, MIPS, NASM/MASM/GAS directives, and WebAssembly Text Format (.wat, .wast). • 15 New Languages & 70+ Extensions/Dotfiles: Added Objective-C/C++ (.m, .mm), Groovy/Gradle/Jenkinsfile, OCaml/SML/ReScript, Erlang, Fortran, COBOL, Prisma, Solidity, Nim, D, Pascal/Delphi, Ada, Prolog, Vimscript, Nix, Apple Metal (.metal), BUILD, Gemfile, .gitignore, .editorconfig, and more.