Selection translation
Translate highlighted text in one click, across a wide range of languages.
Free Chrome extension · speeds up your study & work
Enhance your browsing with AI
Translate, summarize and explain any text on the web — right where you read it. On-device with Chrome's built-in AI, or with your own key for Claude, GPT, Gemini and OpenRouter.
No account · no tracking · your API key never leaves your device.
Made in Switzerland GDPR compliant No data stored 100% free
Translate Summarize Explain Search with ChatGPT Quick Translate Notes Dark mode Streaming Follow-ups Summarize page Translate page Refine
Features
Powerful features, right in your browser
ColibotAI combines real AI with a calm, intuitive design — from instant translations to deep text analysis, it's the assistant that simplifies your workflow.
Smart summarization
Condense long or complex passages into the essentials — keep the key points, drop the noise.
Detailed explanation
Get clear, contextual explanations of difficult text. Ideal for students and pros.
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Search with ChatGPT
Send your selection straight to ChatGPT for a deeper dive, in a new tab.
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Quick Translate
A floating panel to translate any text you type or paste, into any language.
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Notes side panel
Save any result, then search, annotate, export and re-use it from the side panel.
Hybrid AI engine
Free, private on-device AI when available — your own key when you want a specific model.
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Local & custom models
Point ColibotAI at any OpenAI-compatible endpoint — a local model (Ollama, LM Studio, llama.cpp) or your own remote server. Free, private, no key required.
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Token-saving reuse
Re-run near-identical text and ColibotAI reuses a saved answer instead of calling the AI again — no tokens spent. The similarity threshold is yours to set.
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Key check on save
Saving a key runs a zero-token check, so you know instantly whether it works — plus a debug mode with detailed errors when you need it.
Light & dark
A polished, accessible interface that follows your system theme — in English or Italian.
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Streaming answers
Watch translations, summaries and explanations appear live, as they're generated — on-device or with your own key.
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Ask a follow-up
Keep going right on any result — ask a follow-up question without re-selecting the text, with the original kept as context.
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Summarize the page
Condense the whole article in one click — and choose the depth: Short, Medium or Long.
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Translate the page
Translate an entire page in place — on-device, private and free — with one-click restore to the original.
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Refine your translation
One tap on a Quick Translate result to Polish the grammar or rewrite it in a Formal, professional tone.
More on the way
Help shape what comes next.
See the roadmapHybrid engine
Two ways to run the AI — your choice
Use Chrome's free on-device model, bring your own key for the most capable cloud models, or point ColibotAI at your own local / custom server. It picks the best available automatically, or you set it explicitly.
On-device
Free & private
Runs locally with Chrome's built-in Gemini Nano.
- Your text never leaves your computer
- No API key, no cost
- Works offline for supported languages
- Translate, summarize & explain
Your key or your server
Any model you like
Connect your own provider account for maximum quality — or your own local / custom model.
- You pick the model — nothing preselected
- Key stored locally, never synced
- Sent directly to the provider — we run no server
- Or use a local / custom OpenAI-compatible endpoint
Anthropic · ClaudeOpenAI · GPT-5.xGoogle · GeminiOpenRouterLocal · Ollama / LM Studio
How it works
From selection to answer in seconds
Choose your engine
Use Chrome's on-device AI, or add an API key in Settings and pick a model.
Select text
Highlight any text on any page — a small toolbar appears beside it.
Pick an action
Translate, Summarize, Explain or Search with ChatGPT — one click.
Read & save
Your result appears in a tidy popover; copy it or save it to your Notes.
Default shortcuts: Ctrl+Shift+E on/off · Ctrl+Shift+Y notes · Ctrl+Shift+U Quick Translate — all rebindable in Chrome.
Made in Switzerland
Private by default, honest by design
GDPR-compliant and built so your data stays yours. On-device, nothing leaves your computer. With your own key, your selected text does go to the AI provider you picked — sent directly, with no ColibotAI server in between. No tricks. Here's exactly what happens:
On-device mode
Your selected text is processed locally by Chrome's built-in AI. Nothing leaves your computer — fully private and free.
Your-key mode
Your text is sent directly from your browser to the provider you chose (OpenAI, Anthropic, Google, OpenRouter) — or to your own local / custom server. ColibotAI has no backend and never sees or stores it.
No tracking, ever
No analytics, no cookies, no account. Your key is stored locally and never synced; notes live locally and you can export or delete them anytime.
Ready to read smarter?
Add ColibotAI to Chrome and let AI translate, summarize and explain the web for you — completely free.
FAQ
Frequently asked questions
How do I get started with ColibotAI?
Install it from the Chrome Web Store, then either enable Chrome's on-device AI or add your own API key under Settings and pick a model. Select any text on a page and choose an action.
Does ColibotAI store or share my data?
No. In on-device mode your text never leaves your computer. In your-key mode it's sent directly to your chosen provider — ColibotAI has no server and never sees or stores your text. No analytics, no cookies, no account.
Is ColibotAI free?
Yes. The extension is free. On-device AI is free too; if you use your own API key, you pay only your provider's usage directly.
What languages are supported?
Translation covers a wide range of languages. On-device coverage depends on Chrome's built-in models; with your own key, virtually any language your model supports.
Which AI providers can I use?
OpenAI, Anthropic (Claude), Google (Gemini) and OpenRouter — one key, hundreds of models. You choose the model; nothing is preselected.
Can I support the project?
Absolutely — see the Donations page, star us on GitHub, or leave a review on the Chrome Web Store.
Stay in the loop
Product news & updates
Get notified about new features and the roadmap. No spam, unsubscribe anytime.