Paste a post you wrote - get genuinely rewritten versions for LinkedIn, X, Threads and Bluesky in one click. Each version respects the platform's character limit and culture. No signup.
Built by Vladyslav Rybak, Founder, Croni · Last updated Jul 12, 2026
Anonymous inputs and outputs may be used to improve Croni's AI models. No personally identifiable information is stored. Privacy policy.
Cross-posting the same text to every platform tanks engagement. LinkedIn rewards longer, structured posts; X rewards punchy single ideas; Threads is looser and more conversational; Bluesky punishes marketing-speak. The same words work brilliantly on one platform and bomb on the next.
This rewriter genuinely rewrites - it doesn't truncate. Each output is a fresh take on your idea tailored for the platform's norms, with the right length, the right tone and a short note explaining what changed. You stay the author; the AI handles the platform tax.
You can ask ChatGPT to 'rewrite this for X' and get something reasonable. But you'd have to remember each platform's character limit, run the prompt four times (or write a careful multi-output prompt), and copy-paste each result. This tool is built specifically for the cross-platform workflow: one paste, four outputs tuned to each platform's audience, copy buttons that respect format. Faster, more consistent, no prompt engineering required.
LinkedIn version: structured with paragraph breaks, hook in line 1, professional but not corporate, may end with a question. X version: 220–270 chars, sharp and punchy, one clear idea, no throat-clearing. Threads version: 350–480 chars, looser and conversational, feels like a thoughtful note to friends-of-friends. Bluesky version: 240–290 chars, sincere and candid, less promotional than X. Each output also includes a one-line note explaining what the rewrite emphasized.
Yes - anonymous use is free with no signup. We protect against abuse with Cloudflare Turnstile and per-IP rate limiting, but there's no email gate.
You can. This tool is faster for one specific workflow: pasting a post and getting four platform-tailored versions in one click. ChatGPT requires prompt engineering, doesn't enforce character limits, and you'd have to copy-paste each output manually. For the one-shot rewrite case, this is the faster path.
By design - threading is a separate composition decision. This tool focuses on the single-post-per-platform case, where every output fits within the platform's limit. For thread support, that's on our roadmap.
LinkedIn, X (Twitter), Threads and Bluesky - the four major text-first personal-brand networks. Reddit, Mastodon and Telegram are supported by the full Croni Publish product but not in this free tool, because each has stronger platform-specific norms (subreddit rules, instance culture, channel format) that need more context than a paste-and-rewrite flow gives.
Yes - Croni Publish learns your voice from your past posts, generates new posts in your tone, rewrites them per platform, and natively publishes via official APIs across LinkedIn, X, Threads, Bluesky, Reddit, Mastodon and Telegram. Free to try.
