Slack already handles multiple accounts well: its desktop app and the browser version can stay signed in to several workspaces at once, even when each uses a different email address, and you switch between them from the sidebar. For most people that's all they need.
WebCatalog Desktop is the better fit when you want each client's workspace in its own window and session, next to that client's email, documents, and calendar, instead of every workspace sharing one Slack window.
Accounts vs. workspaces in Slack
A Slack workspace belongs to an organization, and your account is your membership in it. When you join a workspace, you sign in with the email address that workspace knows you by. Slack says you can use the same email address for every workspace you belong to, and nothing stops a client from inviting your client-specific address instead.
So "multiple Slack accounts" usually means memberships in several workspaces, sometimes under different emails. You don't need a separate copy of Slack for each one.
Sign in to several workspaces in Slack
In the Slack desktop app or in your browser:
- Click your workspace icon in the sidebar.
- Choose Add a workspace, then Sign in to another workspace.
- Enter the email address that workspace uses and finish signing in, including any Google sign-in or single sign-on step your organization requires.
Each workspace you sign in to stays available. To switch between workspaces in the desktop app, click your workspace icon in the top left and pick one from the list. You can also press ⌘+Shift+S on Mac or Ctrl+Shift+S on Windows and Linux to keep your workspaces visible in the sidebar.
On mobile, the same Add a workspace option is in the Home tab.
Keep client workspaces apart with WebCatalog Desktop
Slack's switcher shows every workspace in one window. If you work with several clients, you may prefer each client's Slack in a window of its own, signed in separately, with that client's other tools beside it. That's where WebCatalog Desktop helps: it runs Slack's web version as its own desktop app, with its own window and Dock or taskbar icon.
Profiles keep cookies, sessions, and browsing data separate, so each client's sign-in stays independent from your own. To set one up:
- Open WebCatalog Desktop and go to Profiles.
- Choose Add profile and name it after the client, such as "Client A."
- Open Slack with that profile and sign in to the client's workspace.
- Repeat for your own company ("Work") and any other client.
A profile can be reused across apps, so the "Client A" profile can also hold the Gmail, Google Drive, or Notion account that client gave you. Spaces then group each client's apps, so opening the client's space brings up its Slack, email, and documents in one window. The steps are in the profiles help article.
This works with the web version of Slack, so check your organization's policies if it limits which Slack clients you can use. WebCatalog Desktop doesn't merge workspaces or bypass a workspace's sign-in requirements.
FAQ
Can I choose which workspaces notify me?
Partly. If you belong to several workspaces, Slack lets you pick which ones show badge notifications, so a quiet community workspace doesn't add to your unread count.
What about Slack Enterprise organizations?
On Slack's Enterprise plans, one organization can contain several workspaces that you reach with a single sign-in, and you can select All workspaces in the sidebar to filter conversations by workspace. Separate profiles only matter for workspaces outside that organization.
Conclusion
Use Slack's own workspace switcher when one window for everything works for you. If you'd rather keep each client in its own window and session with the rest of their apps, download WebCatalog Desktop.
