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Social Media Caption Generator (7 Platforms)

Send any text, image, or script and get algorithm-optimized captions for Instagram, TikTok, Threads, Facebook, and YouTube Shorts in one pass.

Marketing & SEOBeginner★ 110⑂ 15AI score 8/10Last updated: Aug 11, 2026

What it does

  • Analyzes whatever you send (text, image, screenshot, video script, competitor post) and summarizes topic / niche / key message in a few lines.
  • Generates captions for 7 formats at once: Instagram Reels, Instagram Carousel, TikTok, Threads, Facebook Page, Facebook Group, and YouTube Shorts (title + description).
  • Applies platform-specific rules — character ranges, hook placement, 3–5 niche hashtags, CTA type — and labels each caption with the formula, hook type, and the engagement signal it targets.
  • Actively avoids engagement bait, shadow-ban trigger words, and Facebook reach-killing phrases ("buy now", "FREE", "click here").
  • Runs a built-in quality checklist (hook in first 80–125 chars, one CTA, 2–3 power words, no generic hashtags) before presenting output.

Who it's for

  • Solo marketers and social media managers repurposing one piece of content across channels.
  • Creators who shoot Reels/Shorts fast but stall on captions.
  • Small brand teams that want consistent hashtag and CTA standards.
  • Note: output is English only, so it fits global/English-language accounts best.

Example uses

  1. Paste a Reels script and say "write a caption" → get a full 7-platform caption set ready to schedule.
  2. Drop a product screenshot with "caption this" → it reads the image, picks the niche, and writes a save-optimized carousel caption.
  3. Share a competitor's post → it analyzes their approach and proposes stronger-hook alternatives.
  4. Follow up with "redo just the Facebook one, friendlier tone" to swap formulas or tone.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/rediumvex/social-media-caption-generator-claude/HEAD/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the SKILL.m folder from the GitHub repo rediumvex/social-media-caption-generator-claude into my ~/.claude/skills/social-captions/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/rediumvex/social-media-caption-generator-claude.git ~/.claude/skills/social-captions

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open your terminal (Terminal on macOS/Linux, Git Bash or WSL on Windows).
  2. Create the skills folder if needed: mkdir -p ~/.claude/skills
  3. Clone the repo into it: git clone https://github.com/rediumvex/social-media-caption-generator-claude.git ~/.claude/skills/social-captions
  4. Confirm the file exists at ~/.claude/skills/social-captions/SKILL.md; if it sits in a subfolder, move it up one level.
  5. Restart Claude Code so the skill is picked up.
  6. Trigger it by typing something like "write a caption for this reel" with your script, or attach an image and say "caption this".
  7. Since output is English, add "now translate these" if you publish in another language.
View source on GitHub ↗License: MIT