> For the complete documentation index, see [llms.txt](https://docs.jakarto.com/guide-data-downloader/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.jakarto.com/guide-data-downloader/en/introduction/tool-objective.md).

# Tool Objective

The **Jakarto Data Downloader** is a tool that allows users to **select and download 3D point clouds** covering a specific region.

By downloading these point clouds, you obtain a **local copy** of the data, facilitating its use in other GIS software or [specialized applications](/guide-data-downloader/en/file-download/integrating-downloaded-files-into-an-external-tool.md), independently of Jakarto's online services.

The files are provided in **COPC (Cloud Optimized Point Cloud)** format, an optimized extension of the **LAZ** format. This **compressed and structured** format allows for faster data access, especially for web dissemination use cases (such as [Jakartowns](https://docs.jakarto.com/guide-jakartowns/fr/jakartowns/raccourcis-clavier/general)), while remaining **compatible** with software that supports the LAZ format.