Tone Changer
Model:
Original
Re-toned
Advanced options
Result
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Adjust the register of any text to suit your audience, from formal to casual, free and instant.
How to Use Tone Changer
1
Open Tone Changer
Open Tone Changer on Rewind.ai. No account needed to start.
2
Add your input
Enter your text or upload a file, then set any options Tone Changer offers.
3
Get the result
Tone Changer runs on our own GPU servers and returns a result in seconds. Download it, copy it, or share the link.
Use this tool via API
Call this tool straight from your own scripts. The endpoint follows the OpenAI REST format and signs requests with a bearer token, so client libraries you already use keep working. You are billed the same token rate as the web app.
curl -X POST https://api.rewind.ai/v1/chat/completions/ \
-H "Authorization: Bearer sk-rewind-..." \
-H "Content-Type: application/json" \
-d '{"model": "qwen/qwen-2.5-7b-instruct", "messages": [{"role": "user", "content": "Rewrite this email in a friendlier tone..."}]}'Tone Changer FAQ
Tone Changer on Rewind.ai is a free AI tool. There's no charge and no sign up needed to start.
Yes. You get 2,500 free tokens per day to use Tone Changer and every other tool on Rewind.ai. A free account raises that to 5,000 tokens/day. You can buy more starting at $1.
Tone Changer runs open-source AI models on our GPU servers. Send your request and the result comes back in seconds.
No. You can use Tone Changer right away without signing up. A free account doubles your daily usage to 5,000 tokens and saves your history.
Anonymous users get 2,500 tokens/day. Free accounts get 5,000 tokens/day. Tokens reset every 24 hours. Each generation costs ~100-5,000 tokens depending on the operation.
Your data is processed on our servers and isn't stored permanently unless you choose to save it. We don't sell or share it.
Yes. Content from Tone Changer is yours to use for personal or commercial work. The AI models we run are commercially licensed.
Tone Changer matches the quality of paid services because it runs the latest open-source AI models. The difference is you don't pay per use.
Tone Changer runs open-source AI models including Qwen 2.5, FLUX and Whisper. We update to newer models as they ship.
Yes. Tone Changer works in any mobile browser, and the layout adapts to your screen size.
Sign up for a free account to get 5,000 tokens/day, double the anonymous limit. Or buy token packs starting at $5 for 200,000 tokens. See /pricing/ for all options.
Yes. After you generate content, you can download it, copy it, or share it via a unique link. Signed-in users can also view their generation history.
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