"Wouldn't it be great if I could ask AI questions while viewing this page...?" Have you ever thought that? DeepChat is a Chrome extension that opens a sidebar on any website to interact directly with DeepSeek AI. It also includes quick menus that can instantly summarize selected text, check grammar, and translate.
What is DeepSeek AI? Is it Safe?
DeepChat uses DeepSeek, an AI developed in China. Some might worry, "Is it okay to use a Chinese-made AI?" but DeepChat uses a bring-your-own-API-key approach and is completely open source, so you can use it with peace of mind.
Why is it safe? Because your data is sent directly to the DeepSeek service you've subscribed to, without passing through the extension developer. This means the DeepChat developer cannot see your conversations or personal information. Additionally, the code is publicly available on GitHub, so any suspicious activity would be quickly discovered. Those with technical knowledge can verify the code themselves, and if there are any issues, developers worldwide would immediately point them out.
Key Features of DeepSeek:
- Extremely Affordable - Available at about 1/10th the cost of ChatGPT (GPT-4) or less
- Excellent at Japanese & Translation - Strong multilingual support, particularly high-quality translation
- Sufficient Performance - Perfectly capable for general questions and text creation
Security Peace of Mind:
- Use Your Own API Key - Data is only sent through your contracted DeepSeek API, not via the extension developer
- Completely Open Source - Code is publicly available on GitHub, so you can verify what it does, and any suspicious activity would be quickly discovered
- Ollama Support - Using local AI models allows you to work entirely within your computer without sending information over the internet
In other words, DeepChat's appeal is that it allows you to use low-cost, high-performance AI safely with privacy considerations.
Main Features of DeepChat
| Feature | Description |
|---|---|
| AI Conversation in Sidebar | Press Ctrl+Shift+X to open an AI sidebar on the side of your screen for questions and consultations |
| Selected Text Menu | When you select text, 11 types of menus appear including summarization, translation, and grammar checking |
| Understands Page Content | Provides accurate responses by understanding the text on the current page |
| Local AI Support | Available offline when using Ollama |
| Custom Prompts | Register frequently used question patterns for efficiency |
| Completely Free | Open source and free for anyone to use |
Convenient 11 Types of Text Menus
When you select text, these convenient menus appear:
- Summarize / Simplify Language / Translate
- Extract Key Points / Fix Spelling & Grammar
- Change Tone / Make Shorter / Make Longer
- Reply Positively / Reply Negatively / Need Information
Of course, you can also customize them to your preference in the settings page.
Who is it Recommended For?
| For These People | Useful in These Situations |
|---|---|
| Those wanting to save costs | Significantly cheaper than ChatGPT, so minimal burden even with daily use |
| Frequent translation users | DeepSeek excels at multilingual translation with practical-level quality |
| Web researchers | One shortcut to ask AI questions on any website for efficiency |
Simple Usage Guide
Installation:
- Install from the Chrome Web Store
- Register your DeepSeek AI API key (other AI APIs or Ollama also work)
Usage:
- Press Ctrl+Shift+X to open the sidebar and chat with AI
- Menus automatically appear when you select text
- Screenshot feature allows showing images to AI
Personal Experience
I was looking for an open-source DeepSeek tool that uses API keys rather than being browser-based. While DeepSeek might have a suspicious image, using it via API keys means it can't really do anything malicious, so I'm using it 👍
Currently using it for translation and rewriting
As long as you don't ask for anything too difficult, it performs reasonably well‼️
Streamline Daily Tasks with DeepChat
DeepChat is a tool that allows you to leverage AI safely and affordably in all web situations. The bring-your-own-API-key approach and complete open-source nature provide security peace of mind. With features like summarization and translation of selected text, plus screenshot functionality, it's equipped with tools useful for daily information organization and document creation.
Since it's free to install, feel free to try it out and enhance your daily web experience.
Hatena
