Why Omi Is the Next‑Gen Frontend Framework for Cross‑Platform Development

In 2023, the “big front‑end” trend has accelerated, with major internet companies such as Meituan, Alibaba, and Didi releasing their own cross‑platform frameworks, and optimization of user experience becoming a hot topic.

Today, Tencent open‑sourced the next‑generation front‑end unified framework Omi, which supports desktop Web, mobile H5, and mini‑programs. Developed by the WeChat Pay R&D team and based on the Web Components specification, Omi can be used for PC Web, mobile H5, and mini‑program development. Since its open‑source launch at the end of last year, the project has gathered over 7,000 stars and more than 40 contributors.

Omi leverages the excellent Taro multi‑end unified framework from JD’s O2Team, and recent community efforts have enabled seamless integration between mini‑programs and Web. Its slogan has changed from “next‑generation Web framework” to “next‑generation front‑end framework” because Omi, although born on the Web, can now operate independently of it.

With the same syntax and writing style, Omi applications run on different platforms with minimal changes; only platform‑specific APIs need slight adjustments, allowing existing Omi projects to be quickly adapted for Android/iOS mini‑programs.

Learn Once, Write Anywhere

Write Once, Run Anywhere

Key Features of Omi

Learn once, develop many places; develop once, run many places

Use JSX for expressive programming experience, surpassing template languages

Support npm/yarn for third‑party dependency management

Support ES6+

Support CSS preprocessors

Mini‑program API optimization with asynchronous Promise‑based APIs

Ultra‑light dependency package that conforms to mini‑program tags and components

Getting Started

npm i omi-cli -g
omi init-p my-app
cd my-app
npm start

Node version must be >= 8. Set the mini‑program output directory to dist for convenient debugging.

npx omi-cli init-p my-app

(Supports npm v5.2.0+)

Debugging Tools

The Omi development tools allow simple debugging and UI management without any configuration; just install the tool and start debugging.

Because Omi uses Web Components and Shadow DOM, you can use Chrome’s built‑in Elements sidebar—just like React Developer Tools—to inspect components.

Converting React Components to Omi

For example, the following shows how a WeUI React button can be transformed into a WeUI Omi button.

Source: Developer Technology Frontline