Paste a draft. Score it against proven viral posts. Get specific fixes before you post.
Independent tool. Not affiliated with, endorsed by, or connected to X Corp or xAI.
Scores are an AI-assisted estimate based on a library of high-performing example posts — a writing coach,
not a prediction of the real X algorithm. Educational use only.
⚙️ Settings (API key — stored only in your browser)
🔒Your API key is safe. This site has no backend — your key is stored only in your own browser and sent straight to OpenAI/Anthropic when you score a draft. It never reaches this site's server, and we can never see it. (On a shared computer, clear it when you're done.)