HTML: Auto fill-in OTP received in text message (SMS)

Browsers can auto fill-in one time codes if advised. Use it like this:

<input autocomplete="one-time-code">

Demo: https://twitter.com/sulco/status/1320700982943223808 Show archive.org snapshot

Browser support is pretty good Show archive.org snapshot since mid-2022 (Chrome 93+, no Firefox).