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AI social media post generator
Posts that look like your brand made them
Synapis learns your colours, tone and products from your website, then generates each post as a finished piece: the caption and a matching design you can edit. You review it before anything is published.
Start with 3,000 free credits, enough for about three posts. No subscription.
SynapisYour next post is ready to review
- Publishes to Facebook, Instagram and LinkedIn
- You review every post before it goes live
- 3,000 free credits to start
- No subscription
How the generator works
You give it a URL. It gives you posts to approve.
- 1
Paste your website
Synapis reads the site to learn your brand colours, tone of voice, products and offers. Nothing to fill in.
- 2
It plans your topics
It lays out what to post and when, across content pillars that suit your business, on the schedule you choose.
- 3
Each post is made fresh
When a post is due, Synapis writes the caption and generates a matching design, then emails it to you.
- 4
Edit, then publish
Adjust the words or the design, ask the AI for changes or regenerate it, then publish now or schedule it.
More than a caption writer
Most generators hand you text and leave the visual to you. Synapis makes both, and keeps them consistent.
Caption and design together
Every post comes with a designed image in your brand colours and style, not just words to paste into another tool.
Your brand, learned from your site
Tone of voice and visual style come from your own website, so posts sound and look like you without a brand brief.
A built-in design editor
Change text, layout and colours in a canvas editor, or describe the change and let the AI make it.
Products from your store
Connect Shopify, WooCommerce, Magento or a product feed and posts feature your best sellers, offers and new arrivals.
Nothing goes out unseen
Each post comes to you for review. Publish it in one click once you are happy, or schedule it.
Pay per post
About 1,000 credits a post, design and caption included. Credit packs start at $9.90, with no subscription.
Example post designs
Illustrative examples of what the generator produces for different kinds of store.
What makes a generated post usable
A caption on its own is not a post. It still needs an image, a layout, the right product and a time to go out, which is where most of the work was. Synapis treats the post as the unit: when one is due it picks the product or topic, writes the caption, generates a design to match and sends you the finished piece.
The design uses your brand colours and style, learned from your site. For product posts it uses your own product photo, placed into a scene, with the product kept exactly as it is. The caption follows your tone and, for offers, states the regular and sale price.
Where it posts, and where it does not
Synapis publishes to Facebook Pages, Instagram and LinkedIn, either a personal profile or a company page. Each post is a single image with its caption. It does not publish to TikTok, X, Pinterest or YouTube, and it does not generate video.
If you need many networks, analytics dashboards or a shared inbox, a scheduling suite may suit you better; our comparisons with Buffer, Hootsuite and Later set out the differences plainly.
What it costs
You pay for posts, not seats or months. A post, design and caption included, costs about 1,000 credits. You get 3,000 free credits when you sign up, and packs start at 10,000 credits for $9.90, roughly 9 to 12 posts. There is no subscription.
Generator questions
Is there a free version?
Every account starts with 3,000 free credits, about three finished posts. After that you buy credit packs when you need them, from $9.90.
Does it need a store?
No. Any website works for learning your brand. Connecting a store adds product posts built from real sales, offers and new arrivals.
Can I edit what it makes?
Yes. Edit the caption, change the design in the built-in editor, ask the AI for a change, swap the product or regenerate the post.
Does it publish automatically?
Only after you have reviewed a post. You can publish it straight away or schedule it for later.
Which networks does it support?
Facebook Pages, Instagram and LinkedIn.
Keep exploring
See what it makes from your website
Paste your URL and get your first posts to review. 3,000 free credits, no subscription.