Invite All Members to a Slack Channel
Add every user in your Slack workspace to any channel with a single command. Perfect for company-wide announcements, all-hands channels, and team onboarding.
Free forever • No credit card required • 2-minute setup
The /invite_all Command
Channel Tools provides the /invite_all command that instantly adds all members from your entire Slack workspace to the current channel. No more manually selecting users one by one or dealing with Slack's default limitations.
Lightning Fast
Add hundreds or thousands of users in seconds, not hours.
One Simple Command
Just type /invite_all in any channel and you're done.
No User Limit
Works with workspaces of any size - 10, 100, 1000+ members.

When to Use /invite_all
Common scenarios where inviting all workspace members saves time and ensures everyone is included
Company Announcements
Create an #announcements or #general channel and ensure every employee is included for important company-wide updates.
Social Channels
Build culture with #random, #watercooler, or #celebrations channels where everyone can participate in casual conversations.
Onboarding Channels
Add all team members to #resources, #help, or #company-info channels so everyone has access to essential information.
Emergency Communications
Quickly create and populate emergency or incident channels where immediate visibility to all staff is critical.
Polls & Surveys
Gather input from the entire organization by ensuring everyone can see and respond to company-wide polls.
Training & Learning
Create training channels for mandatory courses or learning opportunities that everyone should have access to.
How It Works
Get started in minutes with these simple steps
Install Channel Tools
Add Channel Tools to your Slack workspace from the Slack App Directory. The installation process is quick and requires standard Slack app permissions.
Navigate to Your Channel
Go to the Slack channel where you want to add all workspace members. This can be any public or private channel you have access to.
Execute /invite_all
Type /invite_all in the channel's message box and press Enter. You'll see a confirmation dialog from Channel Tools.
Done!
Channel Tools automatically adds all workspace members to the channel. You'll see a progress indicator and confirmation when complete. That's it!
Frequently Asked Questions
What's the difference between /invite_all and /invite_channel?
/invite_all adds ALL members from your entire Slack workspace to the current channel. /invite_channel adds all members from a specific channel to another channel. Use /invite_all for workspace-wide channels and /invite_channel for copying membership from one channel to another.
Will this notify all members when they're added?
Members will receive a notification that they've been added to the channel, similar to being manually invited. They can mute the channel or leave if they prefer not to participate.
Can I use this for Slack Enterprise Grid?
Yes! Channel Tools works perfectly with Slack Enterprise Grid. You can invite all members across your entire organization, subject to your org's permissions and policies.
What if some users can't be added?
Channel Tools will provide feedback if any users couldn't be added (e.g., due to deactivated accounts or permission restrictions). The majority of users will still be added successfully.
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