PostIdentity, an AI that writes in your voice
I built PostIdentity because I was tired of rewriting the same idea for different platforms in different tones. On X I needed something short and casual. On LinkedIn it had to be longer and more formal. I spent more time polishing tone than writing. PostIdentity is a web app that learns how you write and builds AI identities that capture more than just tone. Each identity encodes pacing, intent, and personality to create posts that sound like you or match different styles for brands or clients. Unlike ChatGPT or other AI writing tools, PostIdentity keeps each identity persistent instead of…
PostIdentity, an AI that writes in your voice launched on November 12, 2025 with 6 votes, #2,995 of 9,796 launches that month and more than 75% of that year's launches.
What it does
Create authentic social media posts using AI that learns your unique writing style. Generate on-brand content in seconds with unlimited voice identities. Start with 5 free credits, no subscription required.
In the maker’s words, at launch
I built PostIdentity because I was tired of rewriting the same idea for different platforms in different tones. On X I needed something short and casual. On LinkedIn it had to be longer and more formal. I spent more time polishing tone than writing. PostIdentity is a web app that learns how you write and builds AI…
Does a similar job
all alternatives →
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!
PostOwl2025 · postowl.io · ▲14Hi 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…
- MVMy Voice AI interviews you, then writes your LI / X posts2024 · ▲6
I'm Tom, the cofounder of Canonical AI. I build a Voice AI agent that interviews you, then writes LinkedIn and X posts based on the interview. ### Why did I build this? 1. LinkedIn and X are b2b lead goldmines. But generating content is hard. You have to figure out what to say. If you're like me, you have trouble coming up with social post ideas when staring at a blank screen. But interesting ideas arrive when I step away from my laptop and talk to people. Also, it's hard to compose the content in a way that appeases the platform algorithms. 2. I want to dogfood my product. We’re building…
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…
More ai this month
the category →
Paintings by AI models: programs run through a simulation of oil paint.
AI · 21d ago · stillwet.art
PixVerse R2▲381A real-time world model you can explore and change
AI · 30d ago · world.pixverse.video
Source: Show HN post ↗ · launch text quoted in part
Launched alongside, November 2025
the whole month →
Guideflow▲1,338Create interactive product demos and step-by-step guides in seconds with Guideflow, the leading AI-powered demo automation tool.
AI · Nov 2025 · guideflow.com
Hardware and software projects by Ali Roberts
Life & fun · Nov 2025 · bitsnpieces.dev
Welltory▲1,028Measure your wellness. Use data to feel great every day.
Work · Nov 2025 · welltory.com
TrustMRR▲833LLM Gateway is a b2b artificial intelligence based in United States, founded in 2025. $259,539/month in verified Stripe revenue. $78,764 MRR. Ahrefs Domain Rating 52/100. growing 55% month-over-month. Track LLM Gateway's verified metrics on TrustMRR.
Growth · Nov 2025 · trustmrr.com
Boing▲782Life & fun · Nov 2025 · boing.greg.technology