PostPlex
PostPlex is a web-based AI social banner and post generator from CachePlex. It provides a template-based editor where users can pick from professionally designed templates, edit text directly on the canvas, and download ready-to-post PNG images. No design skills are required. The tool offers 24 free templates and 16 additional Pro templates. Each template includes editable zones for eyebrow, headline, subheadline, and brand, plus an accent color override and font picker with three free fonts (Inter, Poppins, Montserrat) and seven extra fonts on Pro. Posts can be exported in four platform-optimized aspect ratios: 4:5 vertical (1080×1350), 1:1 square (1080×1080), 9:16 story/reel (1080×1920), and landscape. Rendering and PNG export happen entirely client-side in the browser, so designs are not uploaded to a server. PostPlex includes an AI copywriting feature called "Let AI fill for you," which generates eyebrow, headline, subheadline, and brand text from a short description. This feature is free for logged-in accounts with a cap of 3 generations per calendar month, and unlimited on Pro. A separate non-AI "Auto Fill" button provides starter copy. Users can design without an account, but downloading a PNG or using AI fill requires a free account. Free accounts can download up to 10 posts per day; Pro costs $9/month and removes the daily download cap and unlocks all Pro templates, extra fonts, and unlimited AI fills.
- Category
- AI/ML
- Pricing
- Free
Problem solved
Creating visually appealing social media posts typically requires design skills, software, and time. PostPlex solves this by providing ready-made templates, live text editing, and AI-generated copy, enabling anyone to produce platform-optimized banners and posts in under a minute without installing design software or uploading artwork to a server.
Use cases
- Creating a product launch announcement for LinkedIn or X
- Designing event promotion banners for Instagram stories or feed
- Generating client testimonial posts with star ratings
- Building quarterly recap graphics for business updates
- Making restaurant special or weekend promotion posts
- Producing story/reel sized content for TikTok or Instagram Stories
Audience
- Content Creators
- Business Users
- Startups
- Designers
- Hobbyists
Pros
- No signup required to design and preview templates
- Client-side rendering keeps design artwork private and local
- AI copywriting assistant generates post text from a description
- Includes 24 free templates and four platform-ready export sizes
- Simple editing interface with live preview and one-click PNG download
Cons
- Downloading a PNG and using AI fill require a free account
- Free plan limits downloads to 10 per day and AI fills to 3 per month
- Only 24 of 40 templates are free; Pro costs $9/month
- Customization limited to four text zones, accent color, and font selection
- AI feature sends your description to a server, unlike the client-side rendering
Official website: https://www.cacheplex.com/postplex
Canonical LambdaBase page: https://www.lambdabase.com/tools/postplex