---
title: "Downloading Data"
description: "Access and download data files for backtesting, researching, and live trading sourced from the QuantConnect Dataset Market."
canonical: https://www.quantconnect.com/docs/v2/local-platform/datasets/downloading-data
markdown: https://www.quantconnect.com/docs/v2/local-platform/datasets/downloading-data.md
language: python
source: https://github.com/QuantConnect/Documentation/tree/master/02%20Local%20Platform/09%20Datasets/04%20Downloading%20Data
modified: 2026-10-29
index: https://www.quantconnect.com/llms.txt
---

# Downloading Data

[Documentation](https://www.quantconnect.com/docs/v2.md) > [Local Platform](https://www.quantconnect.com/docs/v2/local-platform.md) > Datasets > Downloading Data

> Code examples are shown in Python. Append `?lang=csharp` to this URL for the C# version of this page.

To locally run the LEAN engine, you need local data. If you have a Download license, you can store datasets on your local machine. This download is for the licensed organization's internal LEAN use only and cannot be redistributed or converted in any format. If you study the data and produce some charts, you may share images of the charts online if the original data can't be to reconstructed from the image. The cost of the license depends on the dataset and it's calculated on a per-file or per-day basis. If you bulk download datasets, you can download historical data packages or daily updates. In most cases, you need both.

### Download By Ticker

Low cost option for individual tickers

### Download in Bulk

All tickers to avoid selection bias

### See Also

- [Datasets](https://www.quantconnect.com/docs/v2/writing-algorithms/datasets/overview.md)