AI Writing Assistant for Professionals

Every message,
exactly right.

One-click rewrite. No prompts, no editing. Safe to send instantly — right inside Slack, Gmail, Teams, and LinkedIn.

  • Avoid sounding harsh without realizing it
  • Fix messages in one click
  • Communicate clearly without overthinking
  • Safe to send instantly

You typed…

But how does it land on the other side?

They read your message as…

“you’re slow
and I’m annoyed with you”

Even if you didn’t mean it that way.

✦ Tonero suggests
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Works wherever you write.

Tonero meets you in your flow — inside Chrome, Edge, and Opera today, across your entire desktop very soon.

Chrome, Edge & Opera Extension Available now

Tonero lives in every text box inside Chrome, Edge, and Opera. Rewrite in Teams, Slack, Gmail, and LinkedIn — right where you type, without switching tabs.

Slack Teams Gmail LinkedIn Jira + any site
✦ Tonero
  • Works in Chrome, Edge, and Opera
  • Teams, Slack, Gmail, LinkedIn & Jira out of the box
  • Install once — it's free
  • Keyboard shortcuts: ⌥⇧ 1–4
Desktop App Coming soon

Tonero lives all over your desktop — in any context window, any native app. Slack desktop, Outlook, Word, Notes, and beyond. One shortcut away.

Slack Teams Outlook Word + any app
✦ Tonero
  • Works in every native app & context window
  • Slack, Teams, Outlook & Word — native
  • Mac & Windows support

Chrome, Edge & Opera extension available now — Get Tonero it is free. Works on any website in Chrome, Edge, or Opera — Teams, Slack, Gmail, LinkedIn, and more.

Three seconds to a better message

01

Type naturally

Write your message as you normally would — rough, fast, unfiltered. Tonero works with whatever you already have open in Chrome, Edge, or Opera.

02

Choose your tone

A toolbar appears beneath every text box — Professional, Direct, Casual, and more. One click. No context-switching, no copy-pasting into other tools.

03

Send with confidence

Every message lands the way you intended — clear, appropriate, and professional. Your reputation stays intact, every single time.

One message. Multiple tones.

Original

"hey i wanted to check if ur free 4 a quick call tmrw abt the proposal thx"

💼 Professional

"Hello, I would like to check if you are available for a brief call tomorrow regarding the proposal. Thank you."

⚡ Direct

"Free for a 15-min call tomorrow about the proposal?"

😎 Casual

"Hey! Are you free for a quick call tomorrow to chat about the proposal?"

🤝 Friendly Pro

"Hi! Would love to catch up tomorrow for a quick call about the proposal — let me know what works for you!"

😊 Emoji Pro

"Hey! 👋 Are you free for a quick call tomorrow 📞 to chat about the proposal? 📋 Let me know! 🙂"

People actually love it

"My team was losing deals to tone issues in email threads. Tonero fixed that overnight. Every client-facing message now sounds deliberate and confident."

Sarah K., CEO at a Series B SaaS company
Sarah K. CEO, Series B SaaS Gmail

"I used to re-read every Teams message three times before sending. Now I just type fast and hit Professional. I save at least 30 minutes a day."

Marcus T., VP of Sales at a B2B SaaS company
Marcus T. VP Sales, B2B SaaS Teams

"Rolled it out to my entire support team. Customer satisfaction scores went up 18% in the first month. Communication quality matters."

Yuki M., Head of Customer Success
Yuki M. Head of Customer Success Slack

It started with a Slack message.

I typed "hey can we jump on a call re the thing from yesterday thx" and sent it to the CEO of a potential partner. The meeting never happened.

I couldn't find a tool that lived in the text box itself — not a separate app to open, not a right-click menu buried three levels deep. So I built one, for myself.

After a few weeks of daily use, I realised other people could benefit from this too. Tonero launched publicly in early 2026 — the same tool I rely on every day.

Anton Lebedintsev, Founder of Tonero
Anton Lebedintsev Founder, Tonero

Ready to write better?

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3+free tones
4+ platformssupported
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