PostRail
Newsletter to Social Posts in Seconds
AI transforms your newsletter into platform-optimized social posts. Different tone for LinkedIn, Twitter, Threads, and Facebook. One click, four platforms.
How It Works
1. Paste Newsletter
Drop in a URL or paste your content directly. PostRail extracts the key insights.
2. AI Generates Posts
Claude AI creates platform-optimized variants with the right tone, length, and formatting.
3. Publish Everywhere
Review, edit, schedule, or publish instantly to all your connected platforms.
AI-Powered Generation
Claude AI transforms your newsletter into platform-optimized posts. Different tone for LinkedIn vs Twitter vs Threads.
Pre & Post CTA Strategy
Generate FOMO-building posts before your newsletter drops, plus evergreen content after. Maximize each issue.
Multi-Platform Output
One newsletter, four platforms. Twitter (280 chars), Threads (500), LinkedIn (3000), Facebook. All optimized.
Schedule & Publish
Queue posts for optimal timing or publish instantly. Connect your own API keys (BYOK) for full control.
Platform Optimization
| Platform | Char Limit | Emojis | Hashtags |
|---|---|---|---|
| Twitter/X | 280 | — | |
| Threads | 500 | — | |
| 3,000 | — | ||
| 63,206 | — |
Frequently Asked Questions
How does it work?
Paste your newsletter URL or content, select platforms, and PostRail generates 6-8 unique posts (pre-CTA and post-CTA variants for each platform). Each is optimized for that platform's character limits, tone, and best practices.
What makes the posts different per platform?
LinkedIn posts are professional with 3-5 hashtags. Twitter is punchy and concise. Threads uses casual language with emojis. Facebook is conversational. Same message, platform-native delivery.
What is pre-CTA vs post-CTA?
Pre-CTA posts go out 24-48 hours BEFORE your newsletter to build anticipation ("Coming tomorrow: 5 ways to..."). Post-CTA posts go out 48-72 hours AFTER to drive evergreen traffic ("Missed this? Here's why it matters...").
Do I need to give you my social media passwords?
No. PostRail uses BYOK (Bring Your Own Keys). You connect your own API credentials, which are encrypted and stored securely. You maintain full control.
Is there a free tier?
The demo lets you generate posts for any newsletter URL. For publishing and scheduling, you'll need to sign up. Free trial includes 10 generations.
PostRail Powers Growth Autopilot
PostRail is the engine behind our Growth Autopilot service. Get AI-generated social content, automated scheduling, A/B testing, and monthly growth reports—all managed for you.
Learn About Growth AutopilotReady to amplify your newsletter?
Stop manually rewriting content for each platform. Let AI do it in seconds.
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