HookpostThe Ultimate Slack Scheduler & AI Copilot
Automate internal company announcements, product launches, and community updates across public and private Slack channels.
✓ No credit card required upfront • ✓ Cancel anytime • ✓ Instant 60s setup
Slack channel scheduling with rich markdown
Custom webhook & app integration
Scheduled recurring team broadcasts
Multi-workspace management
Slack posting limits
- ·Posts to a channel your app is added to
Slack posts are sent by the Hookpost app into a channel in your workspace. Connecting installs the app through Slack’s OAuth flow; each post goes to the channel you choose.
What you can publish to Slack
Messages
Text is sent in Slack’s mrkdwn format, shown under the name and picture of the connected channel in Hookpost.
Images
Attached images are added to the message as image blocks. There is no video upload.
Thread replies
Follow-up entries are posted as replies in the original message’s thread.
Set on each post
- ✓Channel (required)
- ✓Follow-up messages, posted in the thread
Private channels need an invite
Hookpost joins a public channel automatically just before posting. It cannot join a private channel on its own, so invite the app to it in Slack first.
Frequently Asked Questions
Can I schedule posts to Slack automatically with Hookpost?▼
Yes. Hookpost connects directly to official Slack APIs to allow seamless single and bulk post scheduling without manual confirmation notifications.
Is Slack scheduling supported on the free plan?▼
Yes. Hookpost's free plan includes 2 channels and 30 posts a month, forever, with no card required.
Ready to Supercharge Your Slack Growth?
Schedule Slack alongside your other channels from one calendar. The free tier needs no card and does not expire.
Get Started Free (No Card Needed)