Castly
Turns AI chat conversations into polished blog posts, with limited free publishing and paid unlimited posts.
At a glance
Starts at
$12 per month
Price as published by the vendor, September 2026.
Free tier
No
Platforms
Web
Best for
Bloggers wanting to draft posts through AI conversation
Not for
Heavy publishers needing more than five free posts
3.8 out of 5
Scored by Alex after real useOur verdict
Castly turns a conversation with its AI, or questions asked of an uploaded document, into content refined inside a built-in text editor and then published directly. The free plan caps things at five PDF uploads and five published posts, while the $12-a-month plan removes those caps and adds unlimited uploads. Bloggers and learners who like drafting through conversation rather than a blank page fit well, though anyone publishing often will outgrow the free tier fast.
✓What it does well
Conversational draftingContent starts as a conversation with the AI or questions about an uploaded document.
Built-in text editorConversation segments can be pulled into an editor to refine and polish.
Direct publishingFinished content can be published straight from the platform.
✕Where it falls short
Capped free tierThe free plan only allows five PDF uploads and five published posts.
Paid plan required for scaleUnlimited uploads and posts require the $12-a-month paid plan.
Web onlyIt only runs as a web app, with no listed mobile version.
Key features
AI chat draftingUsers create content by chatting with the AI or their documents.
PDF document Q&AUploaded PDF files can be queried directly for content ideas.
Text editorA feature-rich editor lets users refine drafted content before publishing.
Published postsFinished pieces can be published directly to a public post.