2026
OTP Autofill – Chrome Extension
Chrome extension that reads recent OTP emails from Gmail and automatically fills verification codes into supported web forms.
Overview
OTP Autofill is a Manifest V3 Chrome extension that uses Google sign-in, the Chrome Identity API, and Gmail's read-only API access to find recent verification emails and extract OTP codes. It detects OTP pages and supports single-input, multi-input, and contenteditable fields, with optional automatic detection and form submission.
Highlights
- Google sign-in with support for multiple Gmail accounts
- Detects OTP pages and fills single-input, multi-input, and contenteditable fields
- Extracts recent verification codes through the Gmail API
- Persistent settings with optional automatic detection and form submission
Tech Stack
React 19, TypeScript, Vite, Tailwind CSS, Chrome Extension Manifest V3, Gmail API, Chrome Identity API, Chrome Storage API