Substack Mockup Tools
Create a realistic fake Substack post in seconds. A free simulator for newsletter planning, client approvals, presentations, and media-literacy training.
Everything you need to preview a Substack post
One focused simulator that recreates the full Substack reading experience — masthead, headline, byline, hero image, body copy, and the subscribe card that defines the platform. Newsletters live and die by that first impression, so the mockup gives you a realistic way to judge a headline, a cover image, and a subscribe pitch together, exactly as a reader would see them, before a single email goes out.
Pixel-perfect
Mockups that match the real Substack reader view.
Ready in seconds
No login, no setup, instant preview.
Pro quality
High-resolution downloads for decks and reviews.
The Fake Substack Post Generator, Explained
Use this <strong>fake Substack post generator</strong> to build a realistic, pixel-accurate Substack post mockup in seconds. This <strong>Substack simulator</strong> recreates the exact reading-view layout Substack uses for a published post: a small masthead with the newsletter name, a large bold serif headline, a muted subtitle, a byline with avatar, author name and date, a full-width cover image, serif body copy, and the platform's signature "Subscribe to keep reading" card with an email field and an orange pill button.
Writers, ghostwriters, content agencies, and educators use it to preview a newsletter edition before it goes out, get sign-off from a client or executive, mock up a portfolio sample, or teach a media-literacy class how a convincing newsletter screenshot is put together. Everything renders locally in your browser — nothing you type here is ever published to Substack or sent to any subscriber.
Because Substack's reading page is so recognizable — the centered masthead, the serif headline, the subscribe card at the very end of every post — a believable mockup has to reproduce those exact details, not just a generic newsletter template. That's the gap this simulator fills: a purpose-built preview instead of a rough approximation.
What is a fake Substack post?
A fake Substack post is a realistic mockup of a Substack newsletter's reading page that you build for previewing, planning, or presenting — not a live, published post on the network. You control the newsletter name, author byline, headline, subtitle, cover image, body copy, and the subscribe card, and the tool renders an authentic Substack-style preview you can download as an image.
Substack's reading view is distinctive: a centered masthead, a large serif headline, and a subscribe card baked directly into the end of every post. Because that layout is so recognizable, a convincing mockup needs to nail those exact details — which is what this simulator is built to do.
TryMyPost gives you one free, dedicated Substack simulator for full post previews. Everything is processed in your browser, and downloaded mockups carry a small TryMyPost watermark unless you upgrade to a Pro plan.
Who uses a Substack mockup
- Newsletter writers preview a draft edition's headline, cover, and layout before hitting publish.
- Ghostwriters & agencies get client or executive sign-off on a post before it goes out to real subscribers.
- Content teams mock up a launch-week edition for a pitch deck or onboarding sequence.
- Educators use safe, clearly-labeled examples to teach students how to spot a manipulated newsletter screenshot.
Simulator vs. the real Substack
This simulator builds a static, downloadable image of what a Substack post would look like — it never connects to a real Substack account, never sends an email, and never adds a single subscriber. Nothing you create here appears on substack.com.
If you want a real, publish-ready newsletter with an AI-written draft and an on-brand cover image, use the AI Post Creation tool below instead of this free simulator.
Want the real thing?
Generate a real, on-brand newsletter draft with an AI-written caption and cover image.
Try AI Post CreationHow to tell if a Substack post is fake
Newsletter mockups can look convincing in a screenshot, so it helps to know what to check before you trust one shared out of context.
Look for the live URL
A real Substack post lives at a public <em>name.substack.com/p/slug</em> address (or a custom domain). If someone only shows you an image and never a working link, treat it as unverified.
Check the subscribe card wording
Substack's subscribe card copy, button, and layout are consistent platform-wide. A card with unusual wording, a missing email field, or an off-brand button is a common tell of a composed mockup.
Compare the byline to the real profile
Cross-check the author name, avatar, and publish date against the writer's actual Substack profile and archive. A mismatch usually means the image was edited or fabricated.
Reverse-search the cover image
Run the header image through a reverse image search. A cover pulled from stock photography or another publication is a strong signal the post is not authentic.
We label this tool clearly as a simulator on purpose. Mockups are excellent for planning, approvals, and teaching people to recognize manipulation — but presenting one as a real, published newsletter to deceive someone is dishonest and, in many places, unlawful.
Substack simulator FAQ
Is the Substack post generator free?
Yes. The Substack post simulator is free to use for unlimited mockups, previews, and presentations.
What is the difference between this simulator and the AI Post Creation tool?
The simulator creates a mockup from details you type in — it's for previews and planning only. AI Post Creation generates a real, original visual plus an AI-written caption you can actually publish.
Do downloads have a watermark?
Free downloads include a small TryMyPost watermark. Upgrading to a Pro plan removes it. We don't offer watermark-free exports on the free tier.
Is my data private?
Yes. Everything is processed locally in your browser. We never upload your post content, images, or author details to our servers.
Can I add my own cover image and profile photo?
Yes. You can upload a cover image and an author avatar, and both stay in your browser for the preview.
Will my mockup be published to Substack?
No. This tool only generates a downloadable preview image. Nothing is ever sent to Substack, published, or emailed to anyone.
Can I customize the subscribe card and engagement numbers?
Yes. You can set the subscribe card headline, like count, comment count, read time, and publish date to match the mockup you need.
Is it legal to create a fake Substack post?
Creating mockups for design, education, planning, or presentations is fine. Using them to deceive, impersonate a real writer, or spread misinformation is not allowed under our terms.
Ready to build your Substack mockup?
Start with the fake Substack post simulator — no login required.
Create a Substack post