Lovable
Fast way to get a clean publication site and editor on Supabase.
Newsletters · updated 2026-11-03
Can you vibe code a Substack alternative?
Medium: Yes, with care A personal blog plus newsletter with paid tiers is a realistic vibe coding project; you mainly give up Substack's discovery network.
10 h–3 days
MVP build time
$0.50–$65/mo
Your running cost
Fees only
Substack Paid publication
Depends on sales
Saved per year
The honest verdict
Substack is free until you charge readers, then it takes 10 percent of paid subscription revenue on top of card fees. Building your own publishing site with posts, email delivery and Stripe subscriptions is medium difficulty: the pieces are standard, but payments, paywalls and deliverability all need care. What you cannot rebuild is the Substack app, recommendations network and Notes audience, which is where many writers get their growth.
Substack is free newsletter and publishing platform that takes a percentage of paid subscription revenue. This page is about building your own version for personal or internal use, or to learn how this kind of product works, not about copying Substack to compete with it. How we grade.
What's easy and what's hard
Easy with AI
- Blog with posts, archive pages and RSS
- Signup form and subscriber table
- Sending each post as an email through an email API
- Simple paywall that hides paid posts
Hard (where AI won't save you)
- Stripe subscriptions with upgrades, cancellations, failed payments and webhooks
- Email deliverability to thousands of readers
- Comments and community moderation
- Replacing the discovery and recommendations network, which you cannot build
Substack feature checklist
Difficulty is for a solo builder using an AI coding tool. Skip means not worth building yourself.
| Feature | Difficulty | Why |
|---|---|---|
| Post editor and publishing | Easy | Markdown or a rich text editor storing posts in Postgres. |
| Public archive and SEO pages | Easy | Static or server-rendered post pages with RSS and sitemap. |
| Email each post to subscribers | Medium | Queue and batch sends through SES or Resend, with unsubscribe links. |
| Paid subscriptions | Medium | Stripe Checkout and the customer portal cover most of it; webhooks keep access in sync. |
| Paywall for paid posts | Medium | Must be enforced on the server, not just hidden in the browser. |
| Comments | Medium | Spam and moderation become the real work once posts get traffic. |
| Podcast and video posts | Hard | Media hosting, RSS enclosures and bandwidth costs. |
| Recommendations network and app | Skip | This is Substack's network effect; it is not something you can build. |
Build time and running costs
Your own version vs Substack, at personal or small-team scale.
Build time
- Working MVP for yourself
- 10 h–3 days
- Polished, relied on daily
- 8–15 days
Substack price (not independently verified)
Paid publication: Fees only
Free to publish; Substack takes 10% of paid subscription revenue, and Stripe card fees come on top.
Source: substack.com/going-paid. Prices change; check before deciding.
| Running cost | Per month | Notes |
|---|---|---|
| Hosting | $0–$20 | Vercel or Netlify free tier covers a personal publication. |
| Database (Supabase) | $0–$25 | Posts, subscribers and access records. |
| Email sending | $0.50–$20 | Amazon SES at $0.10 per 1,000, or Resend Pro around $20 a month. |
| Stripe fees | $0 | Card fees apply either way; Substack's 10% is the part you save. |
| Total | $0.50–$65/mo | Substack charges fees, so savings depend on your sales volume. |
Recommended vibe coding tools
Bolt.new
Good at scaffolding a full-stack Next.js app with Stripe Checkout in one session.
Claude Code
Handles Stripe webhooks, send queues and server-side paywall checks carefully.
Starter prompt
Paste it into your tool, then ask for a plan before any code. Edit the specifics to match what you need.
prompt.txt
Build a personal newsletter and publication site for my own writing (single author). Stack: Next.js, Supabase, Stripe Checkout and Billing, Resend or Amazon SES for email. Data model: posts (id, slug, title, body, audience free|paid, published_at), subscribers (id, email, status, plan free|paid, stripe_customer_id), email_sends (post_id, subscriber_id, status). Features: 1. Public home page, post pages, archive, RSS feed and sitemap. 2. Free signup with double opt-in; paid upgrade through Stripe Checkout; Stripe customer portal for cancellations. 3. When I publish, queue an email to the right audience in batches, with unsubscribe link and List-Unsubscribe headers. 4. Paid posts show a preview and a paywall to non-paying readers. 5. Admin area that only my account can access. Security: enforce the paywall on the server so paid content never ships to the browser for free readers; verify Stripe webhook signatures and update access only from webhooks; row level security on all tables; sanitize post HTML; rate-limit signup.
Security pitfalls to check
AI tools often get these wrong by default. Check each one before anyone else uses the app.
- 01Paywalls hidden only with CSS or client-side checks leak paid posts to anyone who views source.
- 02Granting paid access from the Checkout success page instead of verified webhooks lets people fake upgrades.
- 03Unsanitized rich text lets an editor bug become stored XSS for every reader.
- 04Subscriber emails exposed through an unprotected API route are a privacy breach.
- 05Forgetting to revoke access when Stripe reports a failed payment or cancellation.
Indie makers who built a real newsletters business
They went far past the prototype: support, payments, reliability and years of iteration. Their profiles show what that took.
~$11.1M ARRJohn O'Nolan built Ghost
Open source publishing platform for paid newsletters, ~$11.1M ARR.
~$15K MRRJustin Duke built Buttondown
Newsletter tool with paid subscriptions, ~$15K MRR (Dec 2022).
Thomas Sanlis built Writizzy
Europe-hosted newsletter and blogging platform.
Or just use these indie-made tools instead
If you need Substack's job done rather than a project, these are built and supported by independent makers.
Ghost
ghost.org
Open source publishing platform for blogs, newsletters and paid memberships, with a managed Ghost(Pro) hosting service.
~$11.1M ARRby John O'Nolan
Buttondown
buttondown.com
Simple, developer-friendly email newsletter platform for writers and publishers.
~$15K MRRby Justin Duke
Writizzy
writizzy.com
Europe-hosted newsletter and blogging platform for independent writers, co-founded with Hugo Lassiège.
by Thomas Sanlis
Kit (formerly ConvertKit)
kit.com
Email marketing and commerce platform built for creators, with visual automations, landing pages, paid newsletters and an app store.
$45M+ ARRby Nathan Barry
What building it teaches you
You learn subscription billing end to end with Stripe and the basics of running a mailing list.
Can you vibe code these too?
- Acuity SchedulingMedium
- CalendlyMedium
- DocSendMedium
- EventbriteMedium
- FeedlyMedium
- FreshBooksMedium
Vibe coding Substack: FAQ
Can you vibe code a Substack alternative?
Medium. A personal blog plus newsletter with paid tiers is a realistic vibe coding project; you mainly give up Substack's discovery network.
How long does it take to vibe code a Substack alternative?
A working personal or internal MVP takes about 10 h–3 days with a tool like Lovable. A polished version you would rely on every day takes about 8–15 days, mostly spent on stripe subscriptions with upgrades, cancellations, failed payments and webhooks.
How much does it cost to run your own Substack alternative?
Expect $0.50–$65/mo at personal or small-team scale (hosting, database (supabase), email sending, stripe fees). Free to publish; Substack takes 10% of paid subscription revenue, and Stripe card fees come on top.
How much does Substack take from paid subscriptions?
Substack takes 10 percent of paid subscription revenue, and Stripe's card processing fees are charged on top. Publishing free newsletters costs nothing.
Can I move my Substack to my own site?
Yes. Substack lets you export posts and your subscriber list, and paid subscribers can be migrated through Stripe. The audience you get from Substack's app and recommendations does not come with you.
Is it worth building my own newsletter platform instead of using Substack?
Usually only once you have meaningful paid revenue, since the 10 percent fee then outweighs the work. Before that, hosted tools like Ghost or Buttondown cost little and save you the maintenance.
Is it legal to build your own Substack clone?
Building your own tool that solves the same problem is common and generally fine. Copying Substack's code, design assets, brand name or content is not. Use your own name and design, respect their terms of service, and get proper advice if you plan to sell it. This page is not legal advice.