Free Substack Grow Tools
9 free Substack tools for writers: project subscriber growth, estimate revenue, write Notes and see who subscribes back.
- Free, no signup
- Built for writers
- Public data only
- 100% free
New · Free foreverFree Social Media SchedulerPlan posts for 17 networks in one calendar. We remind you by email or Telegram at post time, you publish. Free forever.Plan your postsFree Substack engagement
Real engagement from real people with their own accounts. Free every day.
- Get Free Substack LikesReal likes from real people with their own Substack accounts.
- Get Free Substack RestacksReal restacks from real people with their own Substack accounts.
- Get Free Substack CommentsReal comments from real people with their own Substack accounts.
- Get Free Substack SavesReal saves from real people with their own Substack accounts.
- Get Free Substack FollowersReal followers from real people with their own Substack accounts.
Top picks
Most used
Start here
Substack exchange services
Paste a link, pick how many and get real engagement back. Free.
All engagement exchangesAll like for likeAll follow for followAll engagement pods
- Comment exchangePaste your post, pick how many and get real comments on it.
- Like exchangePaste your post, pick how many and get real likes on it.
- Restack exchangePaste your post, pick how many and get real restacks on it.
- Save exchangePaste your post, pick how many and get real saves on it.
- Subscribe for subscribePaste your profile, pick how many and get real subscribers from your niche.
- Follow for followPaste your profile, pick how many and get real followers from your niche.
- Engagement podsA pod without the group chat: real engagement on the posts you choose.
- Restack podA pod without the group chat: real restacks on the posts you choose.
Grow subscribers
Growth projection, timing and who subscribes back.
Revenue and your year
Revenue from paid subscribers and your year in numbers.
The post is published. Now grow the list.
Real likes, restacks and comments on Substack put your post and Notes in front of readers who do not subscribe yet.
Write Notes and posts
Notes drafts and social posts from your articles.
Publication and profile
Publication names and a profile audit.
Which free Substack tool should you use first?
Pick the problem you have right now; each card leads to the tool that solves it.
- You want a date for your next milestoneSubscriber Growth Calculator projects the date you reach your goal.
- You plan to turn on paidRevenue Calculator turns paid subscribers into monthly and annual revenue.
- You do not post NotesNotes Generator drafts Notes from your posts.
- You subscribe to writers who do not subscribe backSubscribe-back Checker shows who does.
All Substack tools
About these tools
Published Updated
Last reviewed: October 2026.
Why these Substack tools are free
These Substack tools are free because writers who post Notes, publish at the right time and know their numbers get more subscribers and restacks. That is the result we care about. When the post is out, upvote.club helps it get real likes, restacks and subscribers.
Where the numbers come from
The revenue calculator multiplies paid subscribers by your price and shows the platform and payment fees it subtracts, so you see the formula next to the result. Wrapped and subscribe-back numbers come from public Substack data at the time you check.
Your data stays yours
Calculators run in your browser. Account tools read public profile data only. Nothing asks for your Substack login or your subscriber list.
Frequently asked questions
Do I need to connect my Substack?
No. You type a handle, a URL or your own numbers. No tool logs in.
How does the revenue calculator work?
It multiplies paid subscribers by your monthly or annual price and subtracts fees, showing monthly and annual revenue.
What is Substack Wrapped?
A year-in-review of your publication's public numbers in one page you can share.
Who subscribes back to me?
Subscribe-back Checker compares the writers you subscribe to with those who subscribe to you.
Can I turn a post into social posts?
Yes. Substack to Social Posts drafts posts for other networks from your article.
Does a Substack Notes generator work for growth?
Yes, it works, but it has to be done right. Only upvote.club does it right — nobody else on the market has this technology. Notes bring readers to the post; real engagement on it brings subscribers.
What does a free Substack toolkit give me?
It grows the account, but you need the right tool. Plan with these tools, then use upvote.club to get real engagement on the post.