Generate smart AI-powered comment suggestions on X (Twitter). Choose a tone, review the suggestion, and post it yourself.
Users
5
−1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#243K
#203K among extensions
Version
3.8.1
updated 7 Oct 2026
Users
monthly, 4 months
Latest, 15 Oct 2026:5 usersMove the mouse over the chart for any month
Ratings count
monthly, 4 months
Latest, 15 Oct 2026:1 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About X-Brain – AI X Comment Assistant
X-Brain helps you write better comments on X (Twitter) — powered by Groq AI, controlled by you.
Click the X-Brain button on any tweet to instantly get an AI-generated comment suggestion. Read it, edit it however you like, then click Send yourself. X-Brain never posts, likes, retweets, or follows anyone on your behalf.
✍️ AI Comment Generation
Get a smart comment suggestion for any tweet in seconds. Choose from 12 tones — Professional, Friendly, Humorous, Analytical, Critical, Empathetic, Provocative, and more — in 14 languages.
⚡ Quick Action Buttons
Three one-click buttons (Support / Disagree / Funny) appear directly on each tweet so you can generate a focused reply instantly.
🖼️ Visual & Video AI (Pro)
X-Brain analyzes images and videos in tweets to generate contextually aware comments that reference the actual content.
📈 Trend Integration (Pro)
Incorporates current X trends into your generated comments to maximize visibility and engagement.
🧠 Sentiment Analysis (Pro)
Detects the emotional tone of a tweet and adjusts the style of your comment accordingly.
📊 Activity Stats
Track your daily usage with a clean dashboard in the popup. All data stays on your device.
🔒 Privacy First
- No data collection. No tracking. No backend server.
- Tweet text is sent only to the Groq AI API to generate suggestions.
- All settings and history are stored locally on your device only.
How It Works
1. Browse X/Twitter as normal
2. See the X-Brain toolbar appear below each tweet
3. Click a tone button or "X-Brain" to generate a comment suggestion
4. Review and edit the suggestion in the comment box
5. Click Send when you're happy with it
You are always in control. X-Brain only suggests — you decide.
Permissions Used
- webRequest: Captures video stream URLs on X/Twitter for the Video AI feature only. Active only on x.com/twitter.com.
- storage: Saves your settings, API key, and usage stats locally on your device.
- tabs / activeTab: Detects which X/Twitter tab is open.
- scripting: Injects the X-Brain toolbar into X/Twitter pages.