AI Captions & Hashtags for All Major Social Media
Create tailored captions and hashtag sets for Instagram, TikTok, Facebook, X, and LinkedIn — fast, on-trend, and platform-optimized.
Try Repostsy — Generate a caption
Start with a short description, choose platform(s) and tone, then click Generate.
Free users get 3 captions per day.
Initializing...
How Repostsy Works
Three simple steps to perfect social media posts
Select one or multiple platforms to get captions & hashtags optimized to that audience.
Type a short description or upload an image and select the tone (funny, professional, inspiring).
Receive multiple caption options, suggested hashtags, and platform-ready formatting — copy and publish.
Everything you need to level up
From a single post to a full content calendar, we've got you covered.
AI tailors language, length, and tone for Instagram, TikTok, Facebook, Twitter/X, and LinkedIn.
Mix of trending and niche hashtags to maximize discovery per platform.
Upload a photo and let AI suggest context-aware captions.
Save brand voice presets & caption templates to keep posts consistent.
Generate weekly packs and plan a content calendar.
Export to CSV or connect to scheduling tools (future roadmap).
Coming soon
Native scheduling integrations
Analytics & competitor insights
Team collaboration & multi-client dashboard
A Specialist For Every Platform
Captions for feed posts, Reels, and Stories with emoji-friendly formatting and niche hashtags.
Example (Aesthetic):
golden hour • salty hair • effortless calm 🌅
#goldenhour #girldetour #beachvibes #aesthetic
Short, hook captions and discoverable hashtags tuned to TikTok trends and sounds.
Example (Relatable):
When the recipe actually works… 🤯 #foodtok
Write shareable, conversational posts for profiles, pages, and groups.
Example (Story):
Small wins matter—today I shipped the feature we've been working on. 🎉
Punchy tweets and threads optimized for 280 characters and shareability.
Example (Tweet):
Ideas are cheap. Execution is the currency. 💡
Professional posts, thought-leadership intros, and hiring announcements tuned for LinkedIn.
Example (Announcement):
We're excited to welcome Clara to the team—she'll lead our UX efforts.
Get variations of your caption tailored for every platform at once.
Example:
Select 'Multiple' in the generator to get optimized captions for all platforms in one go.
What Creators Say
"Repostsy saved me hours each week — captions are on-point and the hashtag suggestions actually helped my reach."
— Alex
Food Creator
"We use Repostsy for client posts. The brand voice presets keep everything consistent."
— Hannah
Social Media Manager
"The AI-powered suggestions are surprisingly creative and have genuinely improved my engagement. A must-have for any content creator."
— Maria
Travel Blogger
"I love how it adapts to different platforms. My posts on LinkedIn are professional, while my TikToks are fun and trendy—all from one app!"
— David
Startup Founder