OTPClient

Application for managing TOTP/HOTP tokens with built-in encryption Source

Description

Highly secure and easy to use OTP client written in C/GTK3 that supports both TOTP and HOTP and has the following features:

integration with the OS' secret service provider via libsecret
support both TOTP and HOTP
support setting custom digits (between 4 and 10 inclusive)
support setting a custom period (between 10 and 120 seconds inclusive)
support SHA1, SHA256 and SHA512 algorithms
support for Steam codes
import and export encrypted/plain andOTP backup
import and export encrypted/plain Aegis backup
import and export plain FreeOTPPlus backup (key URI format only)
import of Google's migration QR codes
local database is encrypted using AES256-GCM (PBKDF2 with SHA512 and 100k iterations) and, while decrypted, it's stored in a secure memory area allocated by GCrypt.

Source

Notice

Despite being 'intended for mobile' according to its metadata, release 3.1.6 from Flathub is far too wide to work great on mobile, while the Alpine package of the same release fits just fine.

Supports importing from many other OTP apps.

Project links:

Links with more information:

https://github.com/paolostivanin/OTPClient/wiki

Links to (pages with) screenshots:

Rating

Mobile Fit: 5

Perfect - this app fits your phone screen just fine out of the box and works nicely with touch input!

Project status: released

This project has been developed so far, that its authors felt confident enough to create a release.

The project repository was created on 2015-09-05.

The last known commit happened on 2024-12-10.
Please note: This information is not updated continuously. This particular listing was last updated on 2025-03-31

Features

✔ This app is (according to its appstream metadata or description) intended to be compatible with mobile devices.

Packaging

Is this app packaged for my distribution?

green: current and packaged,
red: packaged, but not current, ratings and other details may not apply.

Get it on Flathub!

Install as flatpak: https://flathub.org/apps/com.github.paolostivanin.OTPClient.flatpakref

If you're lucky*, you can install this app by just hitting this button:

Install

* You need to have an appstream:// handler, e.g., GNOME Software or KDE Discover, installed and the app needs to be available in a configured software repository, more details.

Find similar apps

By Category: multi-factor authentication

By FreeDesktop-(Additional-)Category: Security System

Licensing and technical details

License: GPL-3.0-or-later Metadata: CC-BY-4.0

Frameworks: GTK3

Backend: libcotp

Programming languages: C

Build system: cmake

AppStream Metadata URL: https://raw.githubusercontent.com/paolostivanin/OTPClient/master/data/com.github.paolostivanin.OTPClient.appdata.xml