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Tone Detector

Check how your writing sounds before you send it. Detect if your text is professional, friendly, formal, casual, or potentially rude.

★★★★★ 4.8/5·Free · No signup·Used by 10K+ writers

Try it free — no signup needed

See the Difference

Before

Per my last email, I need this done by end of day. Let me know if that's going to be a problem.

After

Hi — I wanted to follow up on my previous email. Could you please complete this by end of day? Let me know if you need any help.

Before

Why hasn't this been done yet? I've been waiting for a week.

After

I wanted to check on the status of this task. It's been a week since my initial request — is there anything blocking progress?

Before

This is wrong. Please fix it immediately.

After

I noticed a few issues with this. Could you take another look and make the corrections? Happy to discuss if needed.

How It Works

1
📋

Paste Your Text

Type or paste your text into the editor above. Up to 500 characters in the free tool.

2

AI Processes It

Our AI analyzes your text for improvements and generates a polished version in seconds.

3

Copy & Use

Copy the improved text with one click. Install the extension for unlimited use on every website.

Why Use This Tool

🎭

Detects Writing Tone

AI analyzes your text and identifies if it sounds professional, casual, aggressive, passive-aggressive, or friendly.

📧

Perfect for Emails

Check your emails before sending to make sure they convey the right tone — especially for non-native speakers.

🔄

Suggests Better Tone

Not just detection — the tool rewrites your text in a more appropriate professional tone if needed.

🌍

Cross-Cultural Awareness

What sounds polite in one language can sound rude in English. This tool catches those cultural tone mismatches.

Who Is This For?

🎓

Students

💼

Professionals

🌍

ESL Speakers

✍️

Content Writers

What Users Say

★★★★★

Finally a tool that understands non-native English! My emails sound so much better now.

🇮🇳

Priya S.

Software Engineer

★★★★★

I use this before every important email. The suggestions are always natural and professional.

🇯🇵

Yuki T.

Product Manager

★★★★★

Way better than Grammarly for my needs. It catches mistakes other tools miss.

🇧🇷

Carlos M.

Marketing Lead

FluentEditor vs Other Tools

FeatureFluentEditorGrammarlyQuillBot
Built for Non-Native Speakers
Free to Use✅ 200/mo❌ 5/day✅ Limited
Catches ESL Patterns
Explains Corrections✅ (Premium)
Chrome Extension
Works on 40+ Sites
No Account Required✅ 5/day
Pattern Tips for Learning

Fix Writing Everywhere

Install FluentEditor for Chrome and get AI writing help on Gmail, LinkedIn, GitHub, Slack, and 40+ sites.

Frequently Asked Questions

Why is tone detection important for non-native speakers?
Non-native speakers often unintentionally sound too direct, too formal, or too casual in English. A phrase that's polite in your language might come across as rude in English. Tone detection helps you avoid miscommunication.
Can it detect passive-aggressive tone?
Yes! Phrases like "per my last email" or "as previously discussed" can sound passive-aggressive. The tool identifies these patterns and suggests friendlier alternatives.
Does it work for Slack and chat messages?
Absolutely. Whether it's an email, Slack message, LinkedIn DM, or any written communication, the tone detector helps you get the right tone.
Is it free?
Yes! Check the tone of up to 5 messages per day for free. Create a free account for 200 checks per month.

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