Free tools
Free tools for personal brands on LinkedIn, X & Threads
No signup, no upload, nothing leaves your browser. Built by the team at Croni - the AI ghostwriter that learns your voice and auto-publishes to every major platform.
Cross-Platform Post Rewriter
One post, four platform-tailored versions - LinkedIn, X, Threads & Bluesky.
Open toolLinkedIn Post Formatter
Bold and italic for LinkedIn posts - works in any feed.
Open toolX / Twitter Character Counter
Live character + word count with X, LinkedIn and Threads limits.
Open toolLLM Token Counter & Cost Estimator
Real tokenizer-backed token + cost estimates across GPT, Claude and Gemini.
Open tool
Want Croni to write your posts too?
The free tools above help you ship better posts. Croni Publish writes the posts for you - in your voice - and natively publishes to LinkedIn, X, Threads & Bluesky.