Smart Translation Assistant
This is a lightweight and efficient personal tool for translating text on websites and even the text you write yourself. With multiple methods for translation and word lookup, it offers a fast and seamless experience:
-
Text Selection Translation: Simply select any text, and the translation box will appear right where you selected.
-
Element Selection Translation: Activate “Select Element” mode from the extension icon. Then click on any part of the page (e.g., paragraph or button) to translate it entirely, without breaking the page layout.
- In-Field Translation: When typing inside a form or text field, press the
Ctrl + /shortcut or click the inline translator icon to instantly translate the content before sending.
- Advanced Popup Translation: Clicking the extension icon opens a popup with extended features such as multi-accent pronunciation and dictionary support.
This extension is developed solely for personal use and keeps smart and fast translation always within reach.
Smart and fast translation, anytime, anywhere.
💸 Free & Open Source:
Always free, powered by open-source code.
🔊 Word and Sentence Pronunciation:
Each translation comes with audio playback for accurate pronunciation. You can also choose from different accents. Click the extension icon to access advanced pronunciation options.
📙 Dictionary Mode:
When selecting a word, you’ll not only get a translation but also helpful information like definitions, synonyms, word type, and usage examples.
✅ Supports Multiple Translation Providers:
You can choose from several AI-powered translation providers:
- Gemini (✔ Free)
- OpenAI
- OpenRouter (✔ Free)
- WebAI to API (✔ Free)
- A modern Chromium-based browser or Firefox (Chrome, Edge, Brave, etc.)
- A valid API key (unless using WebAI to API)
We're almost done with final touches, and the extension will soon be published on the Chrome Web Store and Firefox Add-ons.
- Download the latest Chrome version here.
- Extract the downloaded ZIP file.
- Open
chrome://extensions/and enable Developer mode. - Drag the extracted folder into the page to install the extension.
- Done!
Note: After installation, click the extension icon, go to Settings, and enter your API Key.
- Download the latest Firefox version here.
- Extract the downloaded ZIP file.
- Open
about:debugging#/runtime/this-firefox/. - Click
Load Temporary Add-on...and select themanifest.jsonfile from the extracted folder. - Done!
Note: After installation, click the extension icon, go to Settings, and enter your API Key.
- Download the latest Edge version here.
- Extract the downloaded ZIP file.
- Open
edge://extensions/and enable Developer mode. - Drag the extracted folder into the page to install the extension.
- Done!
Note: After installation, click the extension icon, go to Settings, and enter your API Key.
To use the extension, you’ll need an API key from one of the providers below:
| Provider | How to Get API Key | Cost |
|---|---|---|
| Google Gemini | Google AI Studio | Free |
| OpenAI | OpenAI API Keys | Paid |
| OpenRouter | OpenRouter API Keys | Free |
| WebAI to API | (No key needed) | Free |
Note: WebAI to API is a local Python-based server that allows you to use AI translation without an API key.
Important: If you're in Iran, you may need a VPN to access and register for free API keys.
In the API Settings page of the extension, each provider has customizable options to let you choose and configure different models:
-
Google Gemini
You can change the
API URLto use different Gemini models. For available models and usage info, see Gemini official documentation. Choosing the right model may improve translation quality, speed, or reduce API cost. -
OpenAI
You can select models like
gpt-4,gpt-3.5-turbo, and more by entering their names in the settings. Visit OpenAI docs for the full list. This allows you to customize translation quality vs. cost. -
OpenRouter
Similar to OpenAI, OpenRouter supports a variety of models. You can pick one from the list at OpenRouter documentation and use it by name.
-
WebAI to API
This is a free local backend for translation. You can configure your own model in the settings. For setup, see WebAI to API GitHub repo.
These options let you balance between cost, quality, and speed.
The extension uses default models with minimum setup required — but upgrading the model will improve translation results.
Default models used:
- For
OpenAIandOpenRouter:gpt-3.5-turbo - For
Google GeminiandWebAI to API:gemini-2.0-flash
If this project helped you and you’d like to support it, you can buy me a coffee ☕
| Donation Method | 🔗 Link |
|---|---|
| BuyMeACoffee |  |
| USDT (Ethereum) | 0x76DAF7D7C3f7af9B90e16B5C25d063ff3A1A0f8f |
| Bitcoin (BTC) | bc1qgxj96s6nks6nyhzlncw65nnuf7pyngyyxmfrsw |
| PayPal |  |
Thank you for your support!
- iSegar0
- Mohammad
-iSegar0-blue?style=flat&logo=x){kind=icon}
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Make sure Node.js is installed (it includes npm). Then run:
Note: I am using pnpm in this project instead npm.
cd AI-Writing-Companion
npm installTo generate the extension files, run:
npm run build
npm run build:chrome
npm run build:firefox
npm run build:edge
This will create zip files in the Build-Extension/ directory for each browser, intended for manual installation.
To actively develop and apply changes in real time, use one of follwing commands:
npm run watch
npm run watch:chrome
npm run watch:firefox- ⭐ Star the repo to support the project.
- 🐞 Report issues via GitHub Issues.
- 📝 Submit a Pull Request (PR) to help improve the extension.
Icons used in this project are provided by Flaticon and created by:
— Pixel perfect (Main icon)
— Pixel perfect (Select)
— Pixel perfect (Paste)
— Tanah Basah (Voice Command)
— photo3idea_studio (Translate)
— Midev (Clear)
— Miftakhul Rizky (Close)
— Freepik (Swap)
— Freepik (Settings)
— Catalin Fertu (Copy)
— KP Arts (Revert)
This project is licensed under the MIT License — feel free to modify and share!