🌐 Language Translator

A simple and clean language translation web app built with Python and Streamlit, powered by the MyMemory Translation API.

Features

• Translate text between 20+ languages
• Text-to-speech playback of translated text
• Download translation as a .txt file
• Built-in copy button on translated output
• Input sanitization and rate limiting for security
• Clean and minimal UI powered by Streamlit

Languages Supported

English, Hindi, French, Spanish, German, Japanese, Chinese, Arabic, Portuguese, Russian, Korean, Italian, Telugu, Tamil, Bengali, Dutch, Polish, Swedish, Turkish, Ukrainian

Project Structure

language-translator/
├── app.py               # Main Streamlit application
├── requirements.txt     # Python dependencies
├── .gitignore           # Files excluded from Git
└── README.md            # Project documentation

Prerequisites

• Python 3.8 or above
• pip
• VS Code (recommended)
• Internet connection (for translation API and text-to-speech)

Setup Instructions

1. Clone the repository

git clone https://github.com/your-username/language-translator.git
cd language-translator

2. Create and activate a virtual environment

Windows:

python -m venv venv
venv\Scripts\activate

Mac/Linux:

python3 -m venv venv
source venv/bin/activate

3. Install dependencies

pip install -r requirements.txt

4. Run the app

streamlit run app.py

The app will open automatically in your browser at http://localhost:8501

How to Use

1. Select the source language (language you are translating from)
2. Select the target language (language you want to translate to)
3. Type or paste your text in the input box
4. Click the Translate button
5. View the translated text — use the copy icon to copy it
6. Optionally download the translation or listen to it using the audio player

Dependencies

Package	Purpose
streamlit	Web UI framework
requests	Calling the MyMemory API
gtts	Text-to-speech audio generation

Install all at once:

pip install streamlit requests gtts

API Used

This app uses the MyMemory Translation API — a free, no-key-required translation service.

• API endpoint: https://api.mymemory.translated.net/get
• Free limit: ~1000 words/day per IP address
• No API key or account needed
• Docs: mymemory.translated.net

⚠️ Text entered is sent to MyMemory's servers for translation. Do not translate sensitive or personal information.

Security Features

• Input sanitization — blocks special characters like < > { } \
• Rate limiting — enforces a 3-second cooldown between requests
• No API keys — no credentials stored or required
• Error handling — clear messages for timeouts, API failures, and invalid input

Deployment

You can deploy this app for free on Streamlit Community Cloud:

1. Push your project to GitHub
2. Go to share.streamlit.io
3. Connect your GitHub repository
4. Click Deploy

Your app will be live at a public URL within minutes.

Known Limitations

• MyMemory free tier allows approximately 1000 words/day per IP
• Text-to-speech may not be available for all languages
• Translation quality depends on the MyMemory API

License

This project was built as part of a student internship task at CodeAlpha.