Twitter Digits, the company’s login product that works with a phone number, is now available for the web, Twitter announced today.

Twitter originally announced Digits as part of its Fabric kits for mobile developers in October, enabling them to let users sign up for and log into apps simply with their phone numbers. Now, developers can implement the same into an app’s website.

As Twitter’s Manuel Deschamps writes in a blog post:

With Digits login for web, you can implement a simple and secure login on your app’s website with just a few lines of code. To help you preserve the mobile-first experience of your service, your users still sign up first through your mobile app, as they normally would, before they can log in to your site. But now, not only can Digits help you drive more downloads for your app, it also enables you to bring your mobile service onto the web — ensuring a consistent identity experience across platforms.

Digits for the web has two goals in mind: extending the mobile app’s experience onto the website, and creating a super simple login process there too. When users first log in through the website, they receive a confirmation code via text message, similar to how many mobile apps use text messages for confirmation.

Digits on websites also helps users save time and hassle. Once they’ve authenticated via one website with Digits, it will automatically skip the confirmation text message next time they log into any app and site also using Digits, Twitter said.

Digits for the web is also an engagement tactic. As Deschamps points out, “Passwords or other extra steps in the login process may reduce your website’s conversion rate.”

Developers can easily incorporate Digits into their sites using Twitter’s JavaScript SDK. Digits is part of Twitter’s Fabric software developer kits, comprising one for Twitter itself, one for its ad network MoPub, and one for its reporting platform Crashlytics.