PostlyAI is your personal AI caption writer, voice-to-post assistant, and social media post helper. Turn messy drafts into polished captions in seconds. Just type or speak, and PostlyAI transforms your words into clean, expressive, ready-to-post content.
Perfect for Social Media Creators
- Instagram captions and stories
- Threads posts and replies
- TikTok video descriptions
- LinkedIn professional posts
- Bios and profile introductions
- Turning voice notes into social posts
Type or Speak — We'll Do the Rest
Got an idea but can't find the words? Just say it out loud — PostlyAI uses iOS voice-to-text and AI rewriting to instantly upgrade your raw thoughts into 3 high-quality post suggestions.
Pick your platform (Instagram, TikTok, Threads, LinkedIn) and choose a tone: casual, funny, professional, trendy, or punchy.
Features You'll Love
Voice Input
Large input box to type or speak your ideas naturally
AI Improve
Get instant suggestions with our advanced AI rewriting
Platform & Tone
Easy tone & platform pickers for perfect customization
Copy & Save
Tap to copy or favorite your best rewrites
Privacy First
Stay private: no account required, no cloud storage
Instant Results
Get 3 high-quality post suggestions in seconds
See PostlyAI in Action





Free with Daily Limit
Get up to 10 AI rewrites per day — completely free.
An optional upgrade will unlock unlimited posts (coming soon!).
Why Creators Love PostlyAI
- Saves time on writing captions
- Makes posts stand out & sound professional
- Helps non-native speakers write confidently
- Turns messy ideas into clean, human-quality text
- Fun & simple: like having a personal editor in your pocket!
Real-World Use Cases
- Rewrite captions to fix awkward phrasing
- Make bios cooler or more engaging
- Turn voice recordings into polished posts
- Improve tone, clarity, humor, or professionalism
- Reuse your ideas with a better twist
- Create content for multiple platforms from one idea
Coming Soon
- Unlimited Pro Plan
- Hashtag assistant
- "Make This Go Viral" mode
- Template library for creators
Your Words. Just Sharper.
Whether posting travel updates, promoting your business, or chatting with friends — PostlyAI makes sure your captions land the right way.
Say it. Type it. We make it Postly.