🗺️ Offline Map Downloader

Simple Python-Flask App

This is a Flask web application that allows you to select a geographic area on a map and download OpenStreetMap or Satellite tiles as a .zip or .mbtiles file for offline use.

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⚠️ Important Notice

This project is intended for personal, educational, or experimental use only.

It does not use any API keys or authenticated tile services, and fetches tiles directly from public endpoints like OpenStreetMap and ArcGIS. As such:

Do not use this tool for commercial applications or large-scale automated downloads.
Please respect the tile providers' usage policies.

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🔧 Features

• 📍 Select area with a rectangle on the map
• 🔍 Choose zoom level range (10–19)
• 🌐 Switch between OpenStreetMap and Satellite view
• 🧮 Preview tile count before download
• 🎨 Live preview of selected area using actual map tiles
• 💾 Export to .zip or .mbtiles

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🚀 Getting Started

1. Clone the Repository

git clone https://github.com/0015/OfflineMapDownloader.git
cd OfflineMapDownloader

2. Create & Activate Virtual Environment

python3 -m venv .venv
source .venv/bin/activate  # macOS/Linux
# OR
.venv\Scripts\activate     # Windows

3. Install Dependencies

pip install -r requirements.txt

4. Run the App

python app.py

Then open your browser and go to:
👉 http://127.0.0.1:5000

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📁 Output Formats

• tiles.zip – folder structure with PNG tiles by zoom/x/y
• tiles.mbtiles – SQLite-based format (flat database file)

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🛠 Dependencies

• Flask
• requests

See requirements.txt

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📝 License

MIT License
(c) 2025 Eric Nam / ThatProject

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🌐 Attribution

Map tiles provided by:

• OpenStreetMap
• Esri Satellite Imagery

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🙌 Credits & Reference

This project was inspired by AliFlux/MapTilesDownloader
Special thanks to their work on simplifying tile downloading logic.

Created by @ThatProject