# Dash
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#### *Dash is a Python framework for building analytical web applications. No JavaScript required*.
Built on top of Plotly.js, React and Flask, Dash ties modern UI elements like dropdowns, sliders, and graphs directly to your analytical Python code. Read our tutorial proudly crafted ❤️ by Dash itself.
- [User Guide](https://dash.plotly.com/getting-started)
- [Offline (PDF) Documentation](https://github.com/plotly/dash-docs/blob/master/pdf-docs/Dash_User_Guide_and_Documentation.pdf)
- [Dash Docs on Heroku](http://dash-docs.herokuapp.com/) (for corporate network that cannot access plotly.com)
### App Samples
| App | Description |
|--- | :---: |
| ![Sample Dash App](https://user-images.githubusercontent.com/1280389/30086128-9bb4a28e-9267-11e7-8fe4-bbac7d53f2b0.gif) | Here’s a simple example of a Dash App that ties a Dropdown to a D3.js Plotly Graph. As the user selects a value in the Dropdown, the application code dynamically exports data from Google Finance into a Pandas DataFrame. This app was written in just **43** lines of code ([view the source](https://gist.github.com/chriddyp/3d2454905d8f01886d651f207e2419f0)). |
|![Crossfiltering Dash App](https://user-images.githubusercontent.com/1280389/30086123-97c58bde-9267-11e7-98a0-7f626de5199a.gif)|Dash app code is declarative and reactive, which makes it easy to build complex apps that contain many interactive elements. Here’s an example with 5 inputs, 3 outputs, and cross filtering. This app was composed in just 160 lines of code, all of which were Python.|
| ![Dash App with Mapbox map showing walmart store openings](https://user-images.githubusercontent.com/1280389/30086299-768509d0-9268-11e7-8e6b-626ac9ca512c.gif)| Dash uses [Plotly.js](https://github.com/plotly/plotly.js) for charting. Over 35 chart types are supported, including maps. |
|![Financial report](https://github.com/plotly/dash-docs/blob/516f80c417051406210b94ea23a6d3b6cd84d146/assets/images/gallery/dash-financial-report.gif)| Dash isn't just for dashboards. You have full control over the look and feel of your applications. Here's a Dash App that's styled to look like a PDF report. |
To learn more about Dash, read the [extensive announcement letter](https://medium.com/@plotlygraphs/introducing-dash-5ecf7191b503) or [jump in with the user guide](https://plotly.com/dash).
### Contact and Support
For companies with software budgets, Plotly offers
- [**Dash Deployment Server**](https://plotly.com/products/dash/) speeds your time-to-delivery while providing the right resources, security, and scalability you need to deliver production-quality apps
- [**Dash Design Kit**](https://plotly.com/products/dash/) makes your internal dashboard awesome without expertise in JavaScript & CSS.
- [**Snapshot Engine**](https://plotly.com/products/dash/) seamlessly links your analytics and reporting workflows together, giving you a fast way to generate interactive reports of just the data you need
See [https://plotly.com/dash/support](https://plotly.com/dash/support) for ways to get in touch.
![image](https://user-images.githubusercontent.com/1280389/30084008-9fbc68fc-925e-11e7-891c-18a9b8f6ac6b.png)