AI Text Rewriter & Tone Shifter
Rewrite any text in a new tone — formal, casual, concise or expanded — with your own AI key.
🔒 Bring-your-own-key — your key is sent only with this request and never stored. Get a key from Anthropic or OpenAI.
About this tool
Paste any text, choose a target tone or give a free-form instruction, and the AI rewrites it while preserving meaning. Bring your own Anthropic or OpenAI key.
Frequently asked questions
What can the tone shifter do?
Rewrite text to be more formal, casual, concise, expanded, friendly or confident while keeping the original meaning.
Do I need my own API key?
Yes. This tool is bring-your-own-key: paste your own Anthropic or OpenAI key and it is used only for that single request — never stored on our servers.
How much does it cost?
The tool is free; you only pay your AI provider for the tokens used, billed directly by Anthropic or OpenAI on your own account.