π₯· NINJA AI - The World's First Fully Local AI Writing Assistant
Unlike ChatGPT, Grammarly, or other AI tools that send your dataβ¦
Users
25
β5 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#143K
#119K among extensions
Version
1.0
updated 18 Jan 2026
Users
monthly, 9 months
Latest, 21 Oct 2026:25 usersMove the mouse over the chart for any month
Ratings count
monthly, 9 months
Latest, 21 Oct 2026:0 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 Ninja AI - Offline AI for Grammar, Translation & Chat
π₯· NINJA AI - The World's First Fully Local AI Writing Assistant
Unlike ChatGPT, Grammarly, or other AI tools that send your data to remote servers, Ninja AI runs powerful AI models ENTIRELY on your device. Your text never leaves your computer.
β¨ FEATURES
π Smart Grammar & Spelling Fix
Instantly correct grammar, spelling, punctuation, and improve text flow. Just select any text on any website.
π Professional Reformatting
Transform casual writing into formal, professional prose. Perfect for emails, reports, and business communication.
π¬ AI Chat
Have full conversations with your local AI assistant. Ask questions, brainstorm ideas, get explanations - all processed locally.
π Multi-Language Translation
Translate between 7+ languages including English, Arabic, Spanish, French, German, Chinese, and Japanese.
π― Custom Instructions
Tell the AI exactly what to do: "Summarize this", "Make it shorter", "Add emojis", or any custom prompt.
π WHY NINJA AI?
β 100% Local Processing - AI runs on your CPU/GPU, not remote servers
β Complete Privacy - Your data never leaves your device
β Works Offline - Use it on planes, subways, or anywhere without WiFi
β No Subscription - Completely free forever
β No Account Required - Install and start using immediately
β‘ HOW IT WORKS
1. Select any text on any webpage
2. Click the π₯· ninja button that appears
3. Choose your action (Improve, Formal, Translate, or Custom)
4. Get instant AI-powered results
Powered by cutting-edge WebGPU technology, Ninja AI downloads a compact AI model once and runs it using your device's hardware. It's like having ChatGPT on your computer, but completely private.
π§ AVAILABLE AI MODELS
- Llama 3.2 (1B & 3B) - Best for English tasks
- Qwen 2.5 - Excellent for translation
- Gemma 2 - Google's research model
- Phi 3.5 - Microsoft's advanced reasoning model
π REQUIREMENTS
- Chrome 113 or later
- WebGPU support (check at webgpureport.org)
- 4-8GB free disk space for AI models
Perfect for confidential emails, business documents, medical records, legal documents, or any sensitive text you don't want sent to the cloud.
Your words belong to you. π₯·
GITHUB REPO: https://github.com/abdxy/Ninja-AI
Growth
Window
Users
Change
Ratings
Rating
7 days
+2
+8.7%
0
0.00
30 days
β5
β16.7%
0
0.00
6 months
+10
+66.7%
0
0.00
Chrome Web Store search rankings
Where Ninja AI - Offline AI for Grammar, Translation & Chat appears when people search the store, with the 30 day change