How do I switch from Ferdium to Singlebox?

Download Singlebox, sign in, and add your apps from the catalog or by pasting any website's address. Then sign in to each account. Every account gets its own profile, so you can recreate your Ferdium setup in a few minutes and keep using Ferdium until you're ready.

Can I use several accounts of the same app?

Yes. Every app or account is its own profile with an isolated session, so you can stay signed in to several accounts of the same service at once. The free plan includes 2 profiles, and paid plans include unlimited profiles.

Is Singlebox open source like Ferdium?

No. Singlebox is a commercial app with a free plan, developed and supported by the Singlebox team.

Yes. Singlebox has a free plan with 2 profiles and cloud sync. Paid plans add unlimited profiles, app lock, built-in ad and tracker blocking, theme colors, and priority support.

Singlebox vs. Ferdium

A supported app with sync built in, versus a community-run open-source project.

Ferdium is a free, open-source app for web services, built by its community as a fork of Franz 5. Singlebox is made and supported by a dedicated team: one window for your messaging, email, and work apps, with cloud sync built in and every account signed in.

Download for macOS

Also available on Windows.

Last reviewed October 8, 2026 · Compared with Ferdium 7

At a glance

Singlebox

A dedicated window for messaging, email, and work apps, with sync, support, and password manager extensions included. Best for people who want something that works out of the box.

Ferdium

A free, open-source (Apache 2.0) desktop app that brings web services together, with workspaces, deep customization, and optional self-hosted sync. Best for people who value open source, self-hosting, or Linux support.

Out of the box versus do it yourself

Ferdium is open source and highly customizable, with community recipes, custom CSS and JavaScript per service, and the option to host your own sync server. Running that server takes Docker and a reverse proxy, so it suits people comfortable maintaining their own setup.

Singlebox works out of the box. Sign in, add your apps, and your profiles, bookmarks, and settings sync across your computers on every plan, including free. You can still make it your own, with custom CSS and JavaScript, link rules, and proxy settings for each app.

Password managers and extensions

Singlebox supports the 1Password, Bitwarden, and LastPass extensions, plus Dark Reader, so you can fill in passwords inside your apps.

Ferdium doesn't list support for browser extensions, and a request to add password manager extensions has been open on its GitHub issue tracker since 2022.

Support and updates

Ferdium is maintained by volunteers and is actively developed, with help available through Discord, Reddit, and GitHub.

Singlebox is built by a dedicated team. If something goes wrong, you can contact us directly, and paid plans include priority support.

Feature comparison

Feature	Singlebox	Ferdium
What it is	A dedicated desktop app for your messaging, email, and work apps	A free, open-source, community-built app for web services
Platforms	macOS, Windows	macOS, Windows, Linux, FreeBSD
Multiple accounts	Every app or account is its own profile with an isolated session	Add the same service more than once
Organizing apps	One profile bar with folders, tabs and tab groups inside each app, and a command palette	Workspaces
Adding apps	Pick from 65,000+ apps in the catalog or add any website	Community recipes, plus any website
Notifications and badges	Unread badges on each app and on the Dock or taskbar; mute any app	Unread badges, per-service controls, and scheduled Do Not Disturb
Browser extensions	1Password, Bitwarden, LastPass, and Dark Reader	No browser extension support listed
App lock	Password, or Touch ID on Mac, with auto-lock (paid plans)	Password lock with Touch ID
Sync across computers	Profiles, bookmarks, and settings sync on every plan	Optional, through Ferdium's server or one you host yourself
Sign-in	Free account required	Optional
Advanced customization	Custom CSS and JavaScript, proxies, and auto-reload for each app	Custom CSS and JavaScript per service, plus custom recipes
Support	Help from the Singlebox team, with priority support on paid plans	Community help through Discord, Reddit, and GitHub

Why Singlebox

Why choose Singlebox

Ready in minutes

Download Singlebox, sign in, and add your apps. There are no servers to run and no recipes to manage.

Sync without a server

Your profiles, bookmarks, and settings sync across your computers on every plan, without hosting anything yourself.

Help when you need it

Singlebox is built and supported by a dedicated team, with priority support on paid plans.

Where Ferdium may be a better fit

You want free, open-source software you can inspect and modify.
You want to host your own sync server or use the app without an account.
You use Linux or FreeBSD. Singlebox is available for macOS and Windows.
You want community recipes or scheduled Do Not Disturb.

Which should you choose?

Choose Ferdium if open source, self-hosting, or Linux support matter most to you, and you're comfortable with community support.

Choose Singlebox if you want a dedicated home for your work apps that works out of the box, with sync, password manager extensions, and support included.

Frequently asked questions

How do I switch from Ferdium to Singlebox?: Download Singlebox, sign in, and add your apps from the catalog or by pasting any website's address. Then sign in to each account. Every account gets its own profile, so you can recreate your Ferdium setup in a few minutes and keep using Ferdium until you're ready.
Can I use several accounts of the same app?: Yes. Every app or account is its own profile with an isolated session, so you can stay signed in to several accounts of the same service at once. The free plan includes 2 profiles, and paid plans include unlimited profiles.
Is Singlebox open source like Ferdium?: No. Singlebox is a commercial app with a free plan, developed and supported by the Singlebox team.
Is Singlebox free?: Yes. Singlebox has a free plan with 2 profiles and cloud sync. Paid plans add unlimited profiles, app lock, built-in ad and tracker blocking, theme colors, and priority support.