Google’s smart messaging app Allo was made available to public on September 21, 2016.
A web based client was made available on August 15, 2017 but was limited to the Chrome Browser and android users.
Today it added support for Firefox, Opera and iOS users and can be used in both Firefox, Opera and Chrome browsers.
It has plenty of stickers, doodles, adjustable emojis & text sizes, and Gmail-style Smart Reply that lets you reply with a single tap. Smart Reply suggests text and emoji responses based on your personality. For example, it learns if you’re more of a “haha” or “lol” person so the more you use Google Allo, the more “you” the suggestions become.
It has support for Google Assistant and can help suggest movies and restaurants inside the chat.
It also has an incognito chat mode to send a message with end-to-end encryption and expiring chats so you can control how long your messages stick around and private notifications to help keep your chats more discreet.
You can access the Web App from here: https://allo.google.com/web