OTPClient

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

Description

OTPClient is a secure and easy-to-use desktop client for TOTP and HOTP one-time passwords, built with GTK4 and libadwaita. Features:

multiple databases with sidebar management and cross-database search
token grouping with quick filtering
desktop search provider for GNOME Shell and KDE KRunner (opt-in trigger keyword)
command-line companion (otpclient-cli) with scriptable table/JSON/CSV output
support for TOTP, HOTP, and Steam codes
configurable digits (4 to 10), period (10 to 120 seconds), and algorithm (SHA1, SHA256, SHA512)
import and export of encrypted/plain Aegis backups
import and export of encrypted/plain Authenticator Pro and 2FAS backups
import and export of plain FreeOTP+ backups (key URI format)
import of Google Authenticator migration QR codes (file, screen, webcam, clipboard)
integration with the OS secret service provider via libsecret (opt-in)
local database encrypted with AES-256-GCM and Argon2id key derivation; plaintext lives only in libgcrypt secure memory while unlocked

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 2026-05-28.
Please note: This information is not updated continuously. This particular listing was last updated on 2026-05-31

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