Vercel releases the web browser terminal emulator “wterm” as open source. Built with WebAssembly and embeddable in web pages

Vercel has open-sourced wterm, a browser-embedded terminal emulator built with Zig and WebAssembly.

wterm renders in the DOM and supports core terminal features such as scrollback, copy/paste, search, theming, and the Alternate Screen Buffer.

It can connect to remote shells over WebSocket and is designed to feel near-native in the browser.

Vercel also provides embedding examples for both vanilla JavaScript and React, making integration easier for web apps.