GetOTP
GetOTP is a free and open source two-factor authentication app for Android, iOS, Windows Phone, Blackberry, and Linux. It can generate time-based one-time passwords compatible with Google Authenticator and similar apps. It's lightweight, easy to use, and doesn't require
GetOTP: Free Two-Factor Authentication App
A free and open source 2FA app for Android, iOS, Windows Phone, Blackberry, and Linux, compatible with Google Authenticator and more.
What is GetOTP?
GetOTP is a free and open source two-factor authentication app available for Android, iOS, Windows Phone, Blackberry, and Linux platforms. It generates time-based one-time passwords (TOTPs) that are compatible with Google Authenticator or other similar authenticator apps.
Some key features of GetOTP include:
- Open source code and free to use
- No account required - works offline once configured
- Lightweight app with intuitive and easy to use interface
- Encrypts and stores secrets securely on device
- Supports multiple accounts and backends like Google Accounts, Dropbox, Amazon AWS etc.
- Open standard support with HMAC-based OTP and OATH TOTP
- Customizable timer intervals for password generation
- Supports secure password generation via camera QR scan
- Backups and restore options available for disaster recovery
Overall, GetOTP is a great open source alternative with extensive platform support for people looking for reliable and convenient two-factor authentication without being locked into a proprietary solution.
GetOTP Features
Features
- Generate time-based one-time passwords compatible with Google Authenticator
- Available on Android, iOS, Windows Phone, Blackberry, and Linux
- Open source codebase
- Lightweight and easy to use
- Does not require an account
Pricing
- Open Source
- Free
Pros
Free and open source
Cross-platform availability
Simple and lightweight
No account required
Cons
Lacks some additional features like cloud sync and backups
UI is basic
Limited to time-based OTP only
Official Links
Reviews & Ratings
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Authy
Authy is a two-factor authentication application developed by Twilio that provides enhanced security for logging into online accounts. It works by associating your mobile device with your online accounts so that a second one-time passcode generated by the Authy app is required in addition to your regular account password when...
Twilio
Twilio is a cloud communications platform that enables developers to easily build voice, video, and messaging capabilities into web, desktop, and mobile software applications. Some key aspects of Twilio:APIs for communications - Twilio provides REST APIs to initiate outbound calls and texts, receive inbound communications, conduct video chats, etc.Global infrastructure...
Nexmo
Nexmo is a cloud communications platform that enables developers to seamlessly integrate messaging, voice and phone capabilities into web, mobile and internal business applications. The company provides API-based building blocks that handle common communication functions like SMS, voice calls, app-to-phone capabilities, phone number provisioning and more.Key features of Nexmo include:SMS...
Authenticator App
An authenticator app is a type of two-factor authentication software designed to generate one-time passcodes for logins. It works by syncing with the service's authentication server to produce six-digit codes that refresh every 30 seconds. To log into an account secured by two-factor authentication, the user enters both their normal...
AndOTP
andOTP is a free, open-source two-factor authentication application for Android. It enables users to generate one-time passwords for logins to provide an additional layer of account security beyond just a password.Some of the key features of andOTP include:Support for both time-based algorithms (TOTP) and counter-based algorithms (HOTP)Encrypted backups that allow...
FreeOTP+ (fork of FreeOTP)
FreeOTP+ is a fork of the popular open source two-factor authentication (2FA) app called FreeOTP for Android. It was created to add additional features that were not present in the original FreeOTP app.Like FreeOTP, FreeOTP+ generates time-based one-time passwords (TOTP) for two-factor authentication. It supports both HMAC-SHA1 and HMAC-SHA256 algorithms...
