PostInk – AI Reply Generator & Tweet Scheduler for X

AI reply generator and tweet scheduler for X. Drafts posts, replies and threads in your voice and cuts anything that reads like AI.

PostInk writes posts, replies, threads and Articles for X that sound like you, not like AI. Then it posts what you approve on a schedule. A small PostInk button sits in X's own composer. Click it in a reply box and it reads the thread you are answering, writes three drafts from different angles, and shows you the best one. Press Insert and the draft lands in X's editor as if you typed it. Nothing is ever posted without your approval. WRITES LIKE A PERSON • Every draft is checked for AI tells before you see it: stock hooks, tidy morals, "Great question!", em dashes everywhere. Drafts that fail are rewritten or withheld, never shown half-baked. • Replies match the author's language, casing and rhythm, and respond to what the post actually says. • Learns your voice from posts you wrote yourself on X. Your voice profile stays on your device. • Reads text in images on the post you reply to, on your device. Images are never uploaded. EVERY WAY YOU WRITE ON X • Post, Reply, Thread and Article modes, picked from where you are writing. • Tones that fit the moment: Agree, Disagree, Add insight, Ask a question, Funny, Supportive, Hot take, Professional. • One-click rewrites: More specific, More natural, Shorter, and your own instructions. • Threads are split across X's thread boxes for you. • Long-form X Articles with headings and lists, plus a typographic cover image drawn locally. • Right-click any selected text on X to rewrite, shorten or expand it. • Keyboard shortcut: Cmd/Ctrl+Shift+J. SCHEDULING AND BATCHES • Generate up to 10 drafts on a theme, review them, and approve the ones you like. • Approved posts go into a queue and are posted in order, inside your posting hours. • A dashboard with your queue, a week calendar and insights. • Scheduled posts are published from your own browser with your own X login, so Chrome needs to be open at post times. YOUR MODEL, YOUR KEYS • Bring your own API key from a supported AI provider, or run a model locally with Ollama — your key stays in your browser. • Your keys stay in your browser. Requests go straight from your browser to the provider you choose. • Local-only mode blocks every cloud call. With Ollama, nothing leaves your computer. • Per-session spend limit and cost tracking per draft. PRICING Free for 7 days with every feature and no card. After that, a one-time $3.99 licence. No subscription. PRIVACY No account and no PostInk server that stores your data. Drafts, settings, queue and voice live in your browser. Full policy: https://postink.online/privacy/ PostInk is an independent product and is not affiliated with or endorsed by X Corp.