🤖 Will it sound like a robot wrote this?

Not at all. We read the post context, understand the vibe, and craft replies that sound genuinely like you—not like a generic bot wrote it at 3 AM.

📱 Do you steal my LinkedIn data?

Nope. We process only what we need to generate your reply and never store your LinkedIn content. Your data stays yours. That's a promise.

🚫 Will LinkedIn ban me for using this?

No. You're in full control—you review every comment before posting. LinkedIn loves engagement, and so do we. We encourage thoughtful, human-like replies.

🎨 What if I want a totally custom tone?

We have Friendly, Professional, Witty, and Supportive presets. Plus, you can describe your own vibe and we'll match it perfectly.

⚡ Do I need to set up an API key or anything?

Zero setup. Install the extension, log in once, and you're done. That's it. The extension automatically syncs your credentials—no tokens to copy, no hassle.

💰 How much does it cost?

It is completely free. No credit card required. No hidden fees. We believe in democratizing LinkedIn growth for everyone.

🎁 How does your referral program work?

It's simple! Every user has a unique referral link in their dashboard. When a friend signs up using your link, both of you get 10 free credits immediately. There's no limit on how many friends you can refer!

#1 Free AI Extension for LinkedIn Growth

Turn Comments into Opportunities for FREE

Don't let your network fade away. CommenX reads the post, understands the context, and writes authentic, human-sounding replies that get you noticed by recruiters, leads, and peers.

Privacy-First

5,000+ Active Users

★★★★★ 4.9/5 Rating

Stop staring at the blank comment box

We get it. You want to engage on LinkedIn, but crafting thoughtful comments takes time you don't have. CommenX solves this.

Hours lost every week

Get back 10+ hours monthly

Stop overthinking every comment. Generate authentic replies in seconds, not minutes.

Missed networking opportunities

Never miss a chance to connect

Engage consistently with your network without the mental burden of crafting each response.

Inconsistent LinkedIn presence

Build your brand systematically

Stay visible and relevant with regular, thoughtful engagement that builds your professional reputation.

Generic, forgettable comments

Stand out with authentic engagement

Context-aware comments that sound like you, not a bot. Make a real impression every time.

10+ hrs

saved every month per user

3 sec

average time to generate a comment

200%

average increase in engagement

Everything you need to win on LinkedIn

Powerful tools wrapped in a beautiful, easy-to-use extension. From smart replies to analytics, we've got you covered.

AI That Actually Sounds Like You

Our engine analyzes the post's context, sentiment, and nuance to craft replies that feel authentic—not robotic.

Your Personal Tone Studio

Choose from Friendly, Professional, Witty, or define your own custom persona to match your vibe perfectly.

Smart Context Understanding

Give specific instructions or let the AI detect the best angle automatically. It reads between the lines.

Global Reach, Local Feel

Write naturally in 15+ languages. Our AI understands cultural nuances, so you can expand your network worldwide without sounding like a translation bot.

Built for everyone growing on LinkedIn

Whether you're selling, hiring, or building—CommenX amplifies your voice.

Sales Professionals

Build relationships before pitching. Engage with prospects' content meaningfully to get on their radar without being salesy.

3x more meetings booked

Job Seekers

Don't just apply—network. Comment on hiring managers' posts to show expertise and stand out from the pile of resumes.

Get noticed 5x faster

Thought Leaders

Consistency is key. Keep your audience engaged by replying to comments on your posts and engaging with peers daily.

Grow followers by 40%

Founders & Builders

Build in public effectively. Engage with potential users, investors, and partners to build momentum for your product.

Build trust & authority

3 steps to commenting greatness

Simpler than you think. No setup headaches. Just install and go.

Install & Sync

Add CommenX from Chrome Web Store. Log in once on our site, and we automatically sync your token. No API keys, no copying tokens. Done in seconds.

One-Click Install

Auto-Sync

Pick your vibe

Friendly energy? Corporate professional? Witty and clever? Choose your tone or describe your own custom vibe.

Friendly Professional Custom Vibe

Generate & Post

Find a LinkedIn post, click "Generate with CommenX", and boom—a perfectly crafted reply appears. One click to insert it.

Loved by LinkedIn pros

Join thousands of professionals who are saving time and growing their network.

"I used to spend 30 minutes writing one comment. Now I do 10 in 5 minutes. The tone matching is scary good."
AR
Alex RiveraGrowth Marketer

"Finally an AI tool that doesn't sound like a generic bot. My engagement is up 400% since I started using CommenX."
SC
Sarah ChenSaaS Founder

"The 'Professional' tone is perfect for my corporate network. It helps me stay visible without risking my reputation."
MB
Michael BoltonEnterprise Sales

"As a non-native English speaker, this is a lifesaver. It fixes my grammar and makes me sound native."
DF
Diego FernandesSoftware Engineer

"I was skeptical about AI comments but this actually reads the post context properly. Highly recommend."
JW
Jessica WuRecruiter

"It catches nuances that other tools miss. The 'Friendly' vibe is perfect for keeping conversations going."
TB
Tom BakerFreelance Copywriter

"The extension is seamless. It lives right in the comment box, so I never break my flow."
PP
Priya PatelProduct Manager

"CommenX helped me build relationships with key industry leaders just by being more active in their comments."
DK
David KimConsultant

"I used to spend 30 minutes writing one comment. Now I do 10 in 5 minutes. The tone matching is scary good."
AR
Alex RiveraGrowth Marketer

New: Referral Rewards

Help Others Grow & Earn Credits

Invite your colleagues and friends to CommenX. Both you and your friend will get 10 free credits upon their successful signup. No limits on how many you can earn!

Start Referring Now

Join 5,000+ happy users

1. Share Your Link

Copy your unique referral link from the dashboard.

2. Friends Join

They sign up and get 10 credits instantly.

3. You Get Rewarded

You receive 10 credits for every successful signup.

Frequently asked questions

Your privacy is our #1 priority

We believe your professional data belongs to you. That's why we've architected CommenX to be private by design.

No Data Storage
We never store your LinkedIn posts or generated comments.
Local Processing
Your session tokens stay securely in your browser/local storage.
LinkedIn Compliant
We operate within standard browser automation limits to keep your account safe.

100% Secure

End-to-end encrypted connection. No data persistence.

Ready to blow up your LinkedIn?

Join thousands who've ditched the blank comment box. Install CommenX now—it's free, instant, and zero setup required.

No credit card required • Uninstalls in 1 click

Your privacy is our #1 priority

We believe your professional data belongs to you. That's why we've architected CommenX to be private by design.

No Data Storage

We never store your LinkedIn posts or generated comments.

Local Processing

Your session tokens stay securely in your browser/local storage.

LinkedIn Compliant

We operate within standard browser automation limits to keep your account safe.