Summarize, write, translate, check tone and more — 100% on-device, 100% private. Powered by Gemini Nano.
Users
22
−2 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#150K
#125K among extensions
Version
1.4.1
updated 24 Mar 2026
Users
monthly, 8 months
Latest, 21 Oct 2026:22 usersMove the mouse over the chart for any month
Ratings count
monthly, 8 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 ZeroCloud AI — Private AI Assistant
18 free AI tools that run 100% on your device. No data ever leaves your browser.
ZeroCloud AI is a privacy-first AI assistant powered by Chrome's built-in Gemini Nano. Summarize articles, rewrite emails, translate text, check tone, generate hashtags, and more — all without sending a single byte to the cloud.
FEATURES:
- 18 AI Tools — Summarize, Rewrite, Translate, Simplify, Tone Check, Quick Reply, Extract Data, Explain Code, Enhance Prompt, Subject Line, Hashtags, Classify, Thread Summary, Expand Text, Meeting Notes, Page Q&A, Chat, Write
- 100% On-Device — Powered by Gemini Nano, everything runs locally in Chrome
- Selection Toolbar — Highlight text on any page, get instant AI actions
- Customizable Toolbar — Choose which tools appear in the floating toolbar
- Keyboard Shortcuts — Alt+Shift+S (Summarize), Alt+Shift+R (Rewrite), Alt+Shift+T (Translate), Alt+Shift+W (Write), plus 4 more assignable
- Pin Favorite Actions — Star your most-used tools for quick access
- Side Panel — Full writing assistant and chat in the sidebar
- Cloud AI Option — Optionally use Gemini API or Qwen for faster responses (bring your own key)
- Smart Reply — Auto-generates reply suggestions in Gmail, Outlook, LinkedIn, Slack, Discord, and more
- Prompt Enhancer — Improves your prompts on ChatGPT, Gemini, Claude, and other AI sites
- 30+ Languages — Set your preferred response language
- Dark Mode — Follows your system theme
- Guided Setup — Step-by-step onboarding for first-time users
WHAT'S NEW IN v1.4:
- Onboarding wizard for easy setup
- Keyboard shortcuts for power users
- Pin favorite actions to the top
- Customizable selection toolbar
- Response language override
- Cloud AI fallback (Gemini API / Qwen)
- Share & rate prompts
PRIVACY:
- Zero data collection — no analytics, no tracking, no telemetry
- No account required
- No external API calls in default mode
- Your text never leaves your device
Works on Chrome 131+ with Gemini Nano enabled.