AI caption generator
Most caption generators stop at four social networks and hand you text to paste elsewhere. Upload once and DM IQ drafts the copy every connected channel needs — an Instagram caption, a YouTube title, a Ghost article, a beehiiv subject line — then schedules and publishes it.
channels written for, not four
formats: post, video, pin, article, newsletter
upload — every connected channel drafted at once
copy-pasting into a scheduler afterwards
How it works
Drop in the photo, reel, video, or article brief inside the DM IQ scheduler. The AI reads the content and the context of every channel you have connected.
One click drafts an Instagram caption with hashtags, a TikTok hook, a LinkedIn post, a YouTube title and description, a Ghost or Webflow article with an excerpt, and a beehiiv subject line with preview text — each to that channel's own limits.
Tweak the voice, pick the publish time, and let the scheduler post it. Captions, titles, tags and subject lines ship with the post automatically.
Coverage
A caption is only one of five shapes DM IQ generates. Every channel is classified by what it actually publishes, and the draft matches that shape — so a newsletter gets a subject line, not a caption with hashtags stapled to it.
Instagram, LinkedIn, TikTok, Bluesky, Mastodon, Tumblr
Caption plus hashtags, sized to the real cap — 2,200 characters on Instagram and TikTok, 3,000 on LinkedIn, 300 graphemes on Bluesky, 500 on stock Mastodon. The hook lands in the first line because that is all the feed shows before it truncates.
YouTube, Vimeo, Dailymotion
Keyword-first title (100 characters on YouTube), a description whose first 100–150 characters carry the search snippet, and topic tags. Titles are mandatory — publishing rejects an untitled upload.
Front-loaded keyword title, a 100–500 character description written as sentences rather than hashtag spam, and alt text describing the image itself. Keywords outrank hashtags on Pinterest, so the draft is built that way.
WordPress.com, Ghost, Shopify Blog, Webflow CMS, Dev.to, Hashnode, Blogger
An SEO title with the keyword near the front, a 600–1,200 word Markdown body with an H2 every 250–350 words, and a standalone excerpt for the blog listing. Dev.to and Hashnode get their own shorter, dev-native treatment.
beehiiv, Kit
A 30–50 character subject line with the best words inside the first 33 so it survives mobile truncation, preview text that complements the subject instead of repeating it, and a scannable body with exactly one CTA.
Why DM IQ
Most caption generators stop at the big social networks. DM IQ drafts for every channel it can publish to — including blog CMSes like Ghost and Webflow and newsletters like beehiiv and Kit, where the output is a title and excerpt or a subject line, not a caption.
The generator is given each channel's hard cap before it writes, so a Bluesky post fits 300 graphemes and a Ghost excerpt fits 300 characters. Nothing comes back that publishing will reject or truncate mid-sentence.
Three to five hashtags on Instagram, exactly four lowercase single-word tags on Dev.to, CamelCase on Mastodon so screen readers can parse them, most-important-first on Tumblr where only the first five are indexed.
A free caption tool hands you text to paste somewhere else. This generator lives inside the DM IQ scheduler, so the draft you approve is the copy that goes out at the time you picked.
The caption generator is one piece of the workflow: schedule the post with the social media content scheduler, publish the long-form version through the blog and CMS scheduler or the newsletter and social scheduler, then let the AI Instagram chatbot turn the comments it earns into qualified leads.
Tags
The same block of hashtags pasted everywhere is the fastest way to get a post throttled on one channel and rejected on another. These are the rules the generator writes against:
FAQ
An AI caption generator writes social media captions from your content automatically. DM IQ's generator reads the post you upload and drafts the copy each connected channel needs — a caption and hashtags for a social post, a title and description for a video, a title and excerpt for a blog article, a subject line and preview text for a newsletter.
All 19 channels DM IQ publishes to: Instagram, TikTok, LinkedIn, YouTube, Pinterest, Bluesky, Mastodon, Tumblr, WordPress.com, Ghost, Shopify Blog, Webflow CMS, Dev.to, Hashnode, Blogger, Vimeo, Dailymotion, beehiiv and Kit. Each one gets copy in its own format rather than one caption reused everywhere.
Yes, and that is the main difference from a standalone caption tool. Article channels get an SEO title, a Markdown body and a listing excerpt; beehiiv and Kit get a subject line, preview text and a scannable body. It is the same one-upload flow as a social caption.
Yes. Drafts start from your post's content and your channel's context, and you can edit any draft before it's scheduled. Most teams tweak a line or two rather than writing from scratch.
The generator is given the hard cap before it writes, so drafts arrive publishable: 2,200 characters on Instagram and TikTok, 3,000 on LinkedIn, 300 graphemes on Bluesky, 100 for a YouTube title, 300 for a Ghost excerpt. Those same limits are enforced again at publish time.
Per channel, using that channel's own convention — 3–5 hashtags on Instagram, exactly four lowercase single-word tags on Dev.to, CamelCase on Mastodon, most-important-first on Tumblr where only the first five tags are indexed, and 25–30 topic tags on YouTube.
Yes. For YouTube, Vimeo and Dailymotion uploads, DM IQ drafts a keyword-first title, a description whose opening lines carry the search snippet, and topic tags. Titles are required — publishing rejects an untitled video, article or newsletter.
No — it's built into the DM IQ social media scheduler. You upload once, get copy shaped for every connected channel, then schedule and auto-publish from the same screen. There is no export step and nothing to paste anywhere else.