Fastry - Social Media Assistant

Fastry helps you write natural replies and posts for X, Reddit, LinkedIn, and YouTube in seconds.

Fastry is a smart social media assistant that helps you write natural, context-aware replies and posts directly on the platforms you use every day. Instead of switching between tabs or copying prompts, Fastry works right inside X (Twitter), Reddit, LinkedIn, and YouTube - understanding the full context of posts, threads, replies, and videos. 🚀 What Fastry can do Generate replies and posts in one click Understand the full context of posts, threads, and existing replies Capture video context on YouTube automatically Adjust tone, intent, and reply length (short, medium, long) Enable or disable emojis anytime Optional translation preview while writing 🎯 Built for real conversations Fastry is designed to sound natural and human. You stay in control of your voice, style, and goals - Fastry just helps you respond faster and more consistently. ⚙️ Advanced customization (optional) Define your persona and writing rules Choose preferred phrases and phrases to avoid Set default tone, length, and emoji preferences Enable or disable translation support Find relevant conversations by keywords and timing Generate social cards Add and reference your own products naturally 🌍 Works across platforms X (Twitter) Reddit LinkedIn YouTube 🔒 Privacy-first Fastry only works when you actively use it. No automatic posting. No hidden actions. ✅ Who is Fastry for? Founders and indie hackers Content creators Developers and marketers Anyone who replies a lot on social media Start for free and upgrade when you need more.