AI newsletter generator built on what you already wrote.
Postiva turns a blog post, article, or pasted text into an email-ready newsletter section with a set of subject line options and a call to action. Because it starts from a URL, you open your email tool with a draft to edit rather than an empty screen. The same run also writes the Instagram carousel and caption, the TikTok script, the Facebook post, the LinkedIn variants, and the X thread.
This writes one strong section rather than pretending to write your whole issue. Most people run two or three sources through it and assemble from there.
No credit card for the trial. Every plan includes all six platforms.
You came for the newsletter section. The rest come with it.
Postiva writes every platform you keep from the same source in a single run. Not one tool at a time, and not one generation each.
Source
One URL or pasted text
yoursite.com/blog/the-post-you-just-published
One generation
Carousel slides, caption, hashtags, and a call to action.
Two post variants: a professional one and a founder voice.
A hook, a five to eight post thread, and a standalone post.
One conversational post written for the feed.
A hook, a spoken script, on-screen text, and the caption.
Script, hook, and on-screen text to film yourself. Postiva does not record video.
Three subject lines, an email-ready body, and a CTA.
Every platform is selected by default, and one generation covers all of them whether you keep one or all six. Instagram carousel slides are rendered and zipped in the same run at no extra cost. AI post images, voiceovers, and lead magnet PDFs have their own separate allowances.
Three steps, start to finished.
- 01
Paste a URL or your own text
Your latest article, a case study, a product update, or a draft you have not published anywhere yet.
- 02
Postiva reads and condenses it
The extractor strips the page down to the real content, then the section is written for how people read email rather than how they read a blog.
- 03
Copy it into your email tool
Pick a subject line, paste the body, keep the call to action. It works with whatever you already send from, and the social posts announcing the issue are in the same project.
A section you can send, not an outline you have to finish.
Every newsletter run returns three things, and each one is the part people usually stall on.
Subject line options
Several angles on the same content, so you can pick the one that fits the send instead of settling for the first idea.
The newsletter body
A short email-style write-up of the source, sized for a section of an issue and written in your brand voice.
A closing call to action
The CTA text from your brand kit, placed at the end where it belongs rather than dropped mid-paragraph.
The blank screen is the problem. A draft solves it.
Newsletters do not usually die from bad writing. They die from nobody starting them on a busy Thursday.
Postiva starts from something you already published, so the work is editing rather than inventing.
The same run also gives you the social posts announcing the issue, written from the identical source.
Subject lines arrive as options, which is the single slowest decision in most sends.
Every section is saved to a project, so you can reopen it, regenerate it, or reuse it in a later issue.
Built for people who publish every single week.
Postiva earns its place when content is a recurring job rather than a one-off. These are the people who feel that most.
Marketing and SEO agencies
Run every client from one workspace, keep a separate brand kit per client, and send finished work out on an approval link before anything goes live.
Freelancers and consultants
Turn the article you just wrote into a week of posts without opening a design tool or a second AI chat.
SaaS founders
Your changelog, docs, and blog already say something worth reading. This gets that onto the feeds without hiring for it.
Social media managers
Stop rewriting the same idea six times. One source, six native versions, all saved and reopenable.
One source also becomes everything else.
Every tool here runs off the same paste. Pick the platforms you want before you generate and they all come back together.
Every plan includes every feature.
The plan sets how much you generate each month and how much storage you keep, not which tools you can open. Prices are in USD and billed through Paddle.
Starter
$15/month
30 projects a month, with 2 GB of kept assets.
Pro
$29/month
100 projects a month, with 10 GB of kept assets.
Agency
$79/month
400 projects a month, with 50 GB of kept assets.
Every team starts on a 14-day trial without a credit card. See the full pricing breakdown, including yearly billing with two months free.
What people ask before they start.
Does it write the entire newsletter?
It writes one section: a short email-style write-up of your source with subject line options and a call to action. Most people run several sources through it and assemble an issue from the results, or use one as the lead story and write around it.
Do I have to run each tool separately?
No, and this is the part most people miss. Every platform is selected by default when you create a project, and Postiva writes all of them from your source in a single run. One generation covers the whole set, whether you keep one platform or all six, so running the newsletter section, the Instagram carousel and caption, the TikTok script, the Facebook post, the LinkedIn variants, and the X thread costs exactly the same as running just one. Instagram carousel slides are rendered and zipped in that same run at no extra cost. AI post images, voiceovers, and lead magnet PDFs are the exceptions: each has its own allowance.
Which email tools does it work with?
All of them, because Postiva gives you text to copy rather than connecting to your sending platform. It works the same whether you send from Mailchimp, Beehiiv, ConvertKit, Substack, Klaviyo, or hand-written HTML.
How many subject lines do I get?
Several per run, written as different angles on the same content rather than small rewordings of one idea, so the choice is a real one.
Can it match how my newsletter usually sounds?
Yes. The tone of voice saved on your brand kit drives the writing, so the section reads like the rest of your issue instead of like a generated insert.
Is it free?
There is a 14-day trial with no credit card. After that, plans start at $15 a month and include the five social platforms alongside newsletter output.
Does Postiva send the email?
No. Postiva writes the content and you send it from your own email platform. Nothing is delivered to your subscribers by Postiva.
Your next content run
A week of content is hiding in something you already made.
Paste the URL. Pick the channels. Let Postiva turn the useful thinking into a campaign your team can actually ship.
Start your first content run14-day free trial. No credit card required.