Ninja AI - Offline AI for Grammar, Translation & Chat

🥷 NINJA AI - The World's First Fully Local AI Writing Assistant Unlike ChatGPT, Grammarly, or other AI tools that send your data…

As of June 2026, Ninja AI - Offline AI for Grammar, Translation & Chat has 17 users in the Productivity category.

Usersup 70.0 percent+70.0%
17
17
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.0
Manifest V3

History

8 snapshots

Tracking since Apr 3, 2026.

18.8812.56.120000000000001Apr 3, 2026Jun 7, 2026
View as table
DateUsersRatingReviewsVersion
Apr 3, 2026101.0
Apr 17, 202671.0
Apr 23, 2026111.0
May 3, 2026171.0
May 11, 2026181.0
May 19, 2026161.0
May 29, 2026151.0
Jun 7, 2026131.0
Now171.0

Permissions & access

Permissions
sidePaneloffscreenstorageactiveTab
Host access
None declared

Screenshots

Ninja AI - Offline AI for Grammar, Translation & Chat screenshot 1Ninja AI - Offline AI for Grammar, Translation & Chat screenshot 2Ninja AI - Offline AI for Grammar, Translation & Chat screenshot 3Ninja AI - Offline AI for Grammar, Translation & Chat screenshot 4Ninja AI - Offline AI for Grammar, Translation & Chat screenshot 5

About

🥷 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.

✨ FEATURES

📝 Smart Grammar & Spelling Fix
Instantly correct grammar, spelling, punctuation, and improve text flow. Just select any text on any website.

👔 Professional Reformatting  
Transform casual writing into formal, professional prose. Perfect for emails, reports, and business communication.

💬 AI Chat
Have full conversations with your local AI assistant. Ask questions, brainstorm ideas, get explanations - all processed locally.

🌍 Multi-Language Translation
Translate between 7+ languages including English, Arabic, Spanish, French, German, Chinese, and Japanese.

🎯 Custom Instructions
Tell the AI exactly what to do: "Summarize this", "Make it shorter", "Add emojis", or any custom prompt.

🔒 WHY NINJA AI?

✅ 100% Local Processing - AI runs on your CPU/GPU, not remote servers
✅ Complete Privacy - Your data never leaves your device
✅ Works Offline - Use it on planes, subways, or anywhere without WiFi
✅ No Subscription - Completely free forever
✅ No Account Required - Install and start using immediately

⚡ HOW IT WORKS

1. Select any text on any webpage
2. Click the 🥷 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.

🧠 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

📋 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. 🥷

GITHUB REPO: https://github.com/abdxy/Ninja-AI

Technical

Version
1.0
Manifest
V3
Size
1.93MiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
ilonhpfjaebbefafhhmjcmkdfphpcblb
Developer ID
u988d4785f409c1caf83a473584277d54
Developer Email
[email protected]
Created
Jan 18, 2026
Last Updated (Store)
Jan 18, 2026
Last Scraped
Jun 7, 2026
Website
Support URL
Privacy Policy

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Data sourced from the Chrome Web Store · last verified Jun 7, 2026.