Your voice, not a template
Tone, rhythm, the words you use and the ones you never would. Replies read like you wrote them on a good day.
For people who reply a lot
Reply in your voice.
Tonally sits next to the reply box on X and suggests three replies in your own voice. Pick one, change a word, post it. It runs on your own AI key, so nothing you write passes through a server of ours.
Coming soon to the Chrome Web Store
See pricing
7 days free. No account, no card.
Maya Chen @mayabuilds · 2h
We spent three weeks polishing onboarding and churn did not move at all. What are we missing?
Replying to @mayabuilds
Just a demo: nothing was posted.
Tonally
Reply
Community builder
Click a suggestion to insert it
Refine: shorter, funnier, add a number…
Works with your key from
- Anthropic Claude
- OpenAI
- Google Gemini
- xAI Grok
- OpenRouter
Set up in two minutes
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1
Add your AI key
Paste an API key from the provider you like. It is stored in your browser and sent nowhere else. Google's Gemini and OpenRouter both have free options to start with.
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2
Pick a voice
One click on a style preset, or describe how you write. With a subscription, Tonally can build a voice from your real posts instead.
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3
Reply as usual
Click reply on X. Three suggestions appear under the box. Click one to drop it in, or ask for it shorter, funnier, or with a number in it.
Built to sound like one person
It learns from what you do
Edit a suggestion before posting, or keep asking for “shorter”, and Tonally turns that into rules you can read, pause and delete.
It remembers how you answered
Replies you actually posted are kept next to the post they answered, and shown to the model when a similar one comes along.
Any model, your key
Claude, GPT, Gemini, Grok, DeepSeek, Llama. Switch whenever you like. An estimate of what a reply costs is shown before you spend anything.
Private by design
Your keys, your voice and your history live in your browser. No account with us, no analytics, no server of ours between you and your replies.
You stay in charge
Tonally never posts, likes or follows for you. It suggests; you click to insert, and you press the button. One switch turns it off everywhere.
- The post you are replying to, and your voice profile go to the AI provider you picked, with your own key.
- Your license key and a random install ID go to our license server about once a day, to check the key is still good.
- If you connect your X account your browser asks X for your name and picture, once. That is optional.
- Nothing else about you. No analytics, no tracking, no copy of your replies anywhere but in your own browser.
One price, everything in it
Every install starts with 7 days free, no card needed. After that, a license keeps it going.
Monthly
$4.99 per month
- Every feature, every AI provider
- One import of your own posts, to build a voice that sounds like you
- Cancel any time
Yearly
$49.99 per year · $4.17 a month
- Every feature, every AI provider
- One import of your own posts, to build a voice that sounds like you
- Cancel any time
More imports - another account, or the same one again - are $9.99 each, once, for up to 20 accounts.
The license covers Tonally. What your AI provider charges for the replies is separate and paid to them: usually well under a cent per reply, and nothing on a free tier.
Questions
Do I need a ChatGPT or Claude subscription?
No. You need an API key, which is a different thing: you create it in the provider's developer console and pay the provider for what you use. Google's Gemini and OpenRouter have free options, so you can try Tonally without paying anyone.
What does a reply cost me?
That depends on the model you pick. With most models it is well under a cent for a set of three suggestions. Tonally shows an estimate for your model in its settings before you write a single reply.
Does it post for me?
No. Tonally only suggests text. You click a suggestion to put it in the reply box, you can edit it, and you press Reply yourself. It never posts, likes, follows or sends anything on its own.
What happens when the 7 days are over?
Suggestions stop until you subscribe and sign in with Whop in Tonally's settings. Your settings, your voice and everything Tonally has learned stay exactly where they are.
Can I use it on more than one computer?
Yes. Enter your key in each browser you use. A license is for one person.
How do I cancel?
From your Whop account, any time. You keep access until the end of the period you paid for.
Which browsers does it work in?
Google Chrome. Other browsers that install extensions from the Chrome Web Store may work, but Chrome is the one it is tested in.
Is Tonally made by X?
No. Tonally for X is an independent product. It is not affiliated with, endorsed by or sponsored by X Corp. What you post, and following X's rules when you do, stays your responsibility.
Try it on your next reply
Coming soon to the Chrome Web Store