Tonally

AI reply suggestions on X, written in your own voice. Bring your own AI key - your data stays on your device.

Tonally sits next to the reply box on X and suggests three replies in your own voice. Pick one, change a word, post it. HOW IT WORKS • Click Reply on any post on X - three suggestions appear right under the reply box. • Click one to put it in the box, edit it if you like, and post it yourself. • Ask for "shorter", "funnier" or "add a number" - and get new suggestions. A VOICE THAT'S YOURS • Start with one of three built-in voices, or describe how you write. • With a subscription, Tonally builds a voice from your own posts and replies (one import included). • Every edit teaches it: Tonally turns your feedback into rules you can read, switch off and delete. • Several X accounts? Each one can write in its own voice. YOUR AI KEY, YOUR BROWSER • Works with your own API key from OpenAI, Anthropic, Google Gemini, xAI or OpenRouter. Google Gemini and OpenRouter have free options to start with. • What you write goes from your browser straight to the AI provider you chose - never through a server of ours. • Your voices, lessons and history are stored in your browser. No analytics, no tracking. YOU STAY IN CHARGE Tonally never posts, likes or follows for you. It only suggests; you decide what gets posted. PRICING Free for 7 days - no account, no card. After that: $4.99/month or $49.99/year, cancel anytime. Further imports of your posts are $9.99 each. What your AI provider charges for the replies is separate and paid to them - usually well under a cent per reply. Tonally is made by Nexa GmbH and is not affiliated with, endorsed by or sponsored by X Corp. Website: https://tonal.ly · Support: hello@tonal.ly · On X: @tonally_ai