PostOwl
Hi HN, I've been using LLMs to help draft replies and content, but I hit a wall: the "default" voice of standard models is painfully obvious. It’s always too cheerful, uses emojis incorrectly, and loves words like "delve" and "testament." I realized I was spending more time editing the AI's output to sound like me than it would take to just write the thing myself. So I built PostOwl to solve the "Style Alignment" problem. How it works: Instead of a generic wrapper, it uses your previous posting history to build a style profile. When you generate a reply, it dynamically injects your specific…
PostOwl launched on February 20, 2025 with 14 votes, #1,075 of 5,999 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
Stop wasting hours! PostOwl automates X/Twitter with AI: Simplified replies, scheduled posts, and content generation. Boost engagement and dominate social, effortlessly. Free trial!
Train AI on your own posts, then write, reply & schedule on X (Twitter), LinkedIn, Facebook, Instagram, TikTok, and Threads 10× faster, in a voice that
PostOwl learns your voice from posts you've already written, then writes new ones, drafts your replies, and keeps your queue full while you get back to running your business. It still sounds like you. It just takes a fraction of the time. Prefer to do it yourself? PostOwl works as a full scheduler too. Write and schedule your own posts across every platform, the AI is always optional. Shipped a feature today that took 3 tries to get right. The first two versions worked fine. They just weren't simple. Simple is the feature. Connect the accounts you actually post on and write once for all of them. No copy-pasting the same update into six different tabs. Consistency is what grows an audience.…from postowl.io
In the maker’s words, at launch
Hi HN, I've been using LLMs to help draft replies and content, but I hit a wall: the "default" voice of standard models is painfully obvious. It’s always too cheerful, uses emojis incorrectly, and loves words like "delve" and "testament." I realized I was spending more time editing the AI's output to sound like me…
Does a similar job
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Postel2025 · postel.app · ▲111Hey HN! We built Postel because posting consistently on X was taking way too much time and mental energy. With Postel you can: - get personalized post ideas in your voice - see how other creators would write your idea - turn YouTube/videos/articles/podcasts into short posts - repurpose your existing content & brand knowledge - browse thousands of viral tweets → draft, edit, and schedule posts Would love to hear what you think! Cheers!

XBeast2024 · xbeast.io · ▲228A few weeks ago I realized i was spending way too much time trying to write quality posts for Twitter. So I decided to look into scheduling tools which could help me automate my writing. I tried a few, but none of them satisfied me. Either the interface was way too complicated or the features i wanted were just not there. Finally, after some time I gave up… and instead I decided to just do it! I hacked up a quick prototype in a weekend. Tried it out - it worked!! Mostly.. I fixed some bugs, made a nice UI, and now (3 weeks later) I think I built one of the nicest scheduling tools out there.
PostKingFeb 2026 · postking.app · ▲37Heya HN, I've been working on a vibe-marketing platform as my primary side project for the last few months. Doing a (very) soft launch today, mainly because I want to use it to challenge how we think about AI-generated content (Some people call it SLOP - bear with me). How PostKing works: I create a statistical model of your existing content - blogs, social posts, university assignment anything you've written. It learns your brand voice, tone, and positioning - not just surface-level writing style, but the actual way you think Generate content across any channel that sounds authentically…

PostPlanify2025 · postplanify.com · ▲35I got tired of spending 30+ minutes just to publish one post across platforms. Writing separate captions. Downloading Canva designs. Switching tabs to check previews. Uploading everything manually — every single time. So I built a tool to fix that. It lets you: - Connect IG, TikTok, X, YouTube, Facebook, and LinkedIn - Pull designs directly from Canva (or upload media manually) - Auto-generate platform-specific captions using AI (based on your brand voice and uploaded media) - Preview how each post will look on each platform - Schedule or publish everything in one go The AI captions were the…
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