AI Caption Generator
Multiple platform-ready caption options in one request, each with an optional CTA and hashtags.
Fill out the form above and your results will appear here.
What is AI Caption Generator?
Turns a one-line description of your post into 3-5 ready-to-post captions for Instagram, TikTok, Shorts, LinkedIn, or Facebook, each with an optional CTA and hashtag suggestions built in.
How does it work?
- 1.Reads what the post is about plus the platform, tone, style, and audience you picked.
- 2.Generates the exact number of captions you requested (3, 4, or 5) — each one a genuinely different angle, not a reworded copy of the last.
- 3.Adapts caption length and framing to platform norms — a longer, scene-setting caption for Instagram vs. a short footnote for TikTok, where the hook lives in the video itself.
- 4.Adds a CTA and hashtag suggestions to each caption only when they genuinely add value — it skips either field rather than padding it out.
How to use it
- 1.Describe what the post is about in the first field.
- 2.Pick the platform you're posting to.
- 3.Choose a tone and a style — tone sets the voice, style sets the phrasing pattern layered on top of it.
- 4.Optionally add your audience, then pick how many caption options you want (3-5).
- 5.Click Generate captions and compare the options side by side.
Examples
Input
Content: "New coffee shop opening downtown" · Platform: Instagram · Tone: Funny · Style: Engaging
Output
Caption: "We open Saturday, and yes, the espresso machine already has a name (it's Gary)." CTA: "Tag someone who needs a coffee run this weekend." Hashtags: #NewCoffeeShop #ShopLocal #GradOpening
Input
Content: same coffee shop opening · Platform: LinkedIn · Tone: Educational · Style: Minimal
Output
Caption: "3 things we learned opening a coffee shop in 90 days: lease terms matter more than location, staff training beats a fancy machine, and pre-launch social proof drives day-one lines." (No CTA/hashtags — omitted, not padded.)
Tips
- •Punchy style trims to one sharp line — best for TikTok, where the caption is a footnote and the video's first line does the actual hook.
- •Educational tone plus Descriptive style tends to run long — a better fit for Facebook or LinkedIn than TikTok's short-caption norm.
- •Leave Audience blank when testing broad reach; fill it in when you want the CTA to speak to one specific reader segment instead of everyone.
- •Regenerate per platform rather than reusing one caption everywhere — length and framing genuinely change per platform in this tool, they're not just relabeled.
- •Ask for 5 options when you're unsure of the angle, 3 when you already know roughly what you want and just need polish.
Use cases
- •Solo creators posting daily who need caption options fast instead of staring at a blank field.
- •Small business social accounts (coffee shops, boutiques) posting product or announcement content.
- •Agencies drafting caption options for client approval before scheduling.
- •Anyone repurposing one piece of content across Instagram, TikTok, and LinkedIn who needs platform-adapted copy, not one caption pasted everywhere.
Frequently asked questions
How many captions do I get per generation?
You choose — 3, 4, or 5 distinct caption options, all returned in a single request, each with an optional CTA and hashtag suggestions — no need to regenerate to compare options.
Which AI model writes the captions?
Google Gemini 2.5 Flash-Lite, tuned for fast, high-volume creative generation.
Will it write different captions for the same content on different platforms?
Yes — change the Platform field and regenerate; the caption length and framing adapt to that platform's norms.