SubLoop turns your newsletter into daily social posts. This extension schedules your approved Substack Notes & pings you to engage.
Users
4
+4 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#267K
#222K among extensions
Version
1.2.1
updated 30 Sep 2026
Users
monthly, 1 months
Latest, 16 Oct 2026:4 usersMove the mouse over the chart for any month
Ratings count
monthly, 1 months
Latest, 16 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About SubLoop: Schedule Substack Notes
SubLoop turns a newsletter archive into a steady stream of social posts. This extension is the part of that which has to happen in your browser.
Scheduling
Substack does not accept Notes from apps. It accepts them from you. So SubLoop writes the Note, you approve it, and this extension hands it to Substack's own scheduler in your own browser, one at a time, at the times you chose.
Nothing is ever posted immediately. Every path ends at Substack's Schedule button — if the scheduler cannot be reached, the item is reported as failed rather than published on the spot.
Reminders
A scheduled post going out is only half of it. The replies are where the growth is, and they arrive while you are doing something else.
So a set time after your posts go live — thirty minutes by default, yours to change — the extension raises one notification for that slot. Opening it takes you to a page listing what just went out, with a link straight to each post. One notification per slot, never one per post.
You choose the delay, which channels are worth a nudge, and the hours when you would rather not be interrupted. You can also switch reminders off entirely without uninstalling anything.
What it does not do
It does not read your Substack feed, your drafts, or anything you did not approve in SubLoop.
It does not collect analytics, and it sends nothing to anyone but your own SubLoop account.
It does not work on any site other than Substack and SubLoop.
A SubLoop account is required: subloop.me
SubLoop is not affiliated with or endorsed by Substack, Inc.