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    description: Displaying Figures using Plotly's Python graphing library
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# Displaying Figures

Plotly's Python graphing library, `plotly.py`, gives you a wide range of options for how and where to display your figures.

In general, there are six different approaches you can take in order to display `plotly` figures:

 - Using the `renderers` framework in the context of a script or notebook (the main topic of this page)
 - Using [Plotly Studio](https://plotly.com/studio?utm_medium=graphing_libraries&utm_content=python_renderers) to generate charts using natural language
 - Using [Dash](https://dash.plot.ly) in a web app context
 - Using a [`FigureWidget` rather than a `Figure`](https://plotly.com/python/figurewidget/) in an [`ipywidgets` context](https://ipywidgets.readthedocs.io/en/stable/)
 - By [exporting to an HTML file](https://plotly.com/python/interactive-html-export/) and loading that file in a browser immediately or later
 - By [rendering the figure to a static image file using Kaleido](https://plotly.com/python/static-image-export/) such as PNG, JPEG, SVG, PDF or EPS and loading the resulting file in any viewer

Each of the first four approaches is discussed below.

### Displaying Figures Using The `renderers` Framework

The renderers framework is a flexible approach for displaying `plotly.py` figures in a variety of contexts.  To display a figure using the renderers framework, you call the `.show()` method on a graph object figure, or pass the figure to the `plotly.io.show` function. With either approach, `plotly.py` will display the figure using the current default renderer(s).

```python
import plotly.graph_objects as go
fig = go.Figure(
    data=[go.Bar(y=[2, 1, 3])],
    layout_title_text="A Figure Displayed with fig.show()"
)
fig.show()
```

In most situations, you can omit the call to `.show()` and allow the figure to display itself.

```python
import plotly.graph_objects as go
fig = go.Figure(
    data=[go.Bar(y=[2, 1, 3])],
    layout_title_text="A Figure Displaying Itself"
)
fig
```

> To be precise, figures will display themselves using the current default renderer when the two following conditions are true. First, the last expression in a cell must evaluate to a figure. Second, `plotly.py` must be running from within an `IPython` kernel.

**In many contexts, an appropriate renderer will be chosen automatically and you will not need to perform any additional configuration.** These contexts include the classic [Jupyter Notebook](https://jupyter.org/), [JupyterLab](https://jupyterlab.readthedocs.io/en/stable/), [Visual Studio Code notebooks](https://code.visualstudio.com/docs/python/jupyter-support), [Google Colab](https://colab.research.google.com/notebooks/intro.ipynb), [Kaggle](https://www.kaggle.com/kernels) notebooks, [Azure](https://notebooks.azure.com/) notebooks, and the [Python interactive shell](https://www.python.org/shell/).

Additional contexts are supported by choosing a compatible renderer including [QtConsole](https://qtconsole.readthedocs.io/en/stable/), [Spyder](https://www.spyder-ide.org/), and more.

Next, we will show how to configure the default renderer.  After that, we will describe all of the built-in renderers and discuss why you might choose to use each one.

> Note: The `renderers` framework is a generalization of the `plotly.offline.iplot` and `plotly.offline.plot` functions that were the recommended way to display figures prior to `plotly.py` version 4.  These functions have been reimplemented using the `renderers` framework and are still supported for backward compatibility, but they will not be discussed here.


#### Setting The Default Renderer
The current and available renderers are configured using the `plotly.io.renderers` configuration object. Display this object to see the current default renderer and the list of all available renderers.

```python
import plotly.io as pio
pio.renderers
```

The default renderer that you see when you display `pio.renderers` might be different than what is shown here.  This is because `plotly.py` attempts to autodetect an appropriate renderer at startup.  You can change the default renderer by assigning the name of an available renderer to the `pio.renderers.default` property.  For example, to switch to the `'browser'` renderer, which opens figures in a tab of the default web browser, you would run the following.

```python
import plotly.io as pio
pio.renderers.default = "browser"
```

> Note: Default renderers persist for the duration of a single session. For example, if you set a default renderer in an `IPython` kernel, that default won't persist across kernel restarts.

It is also possible to set the default renderer using a system environment variable.  At startup, `plotly.py` checks for the existence of an environment variable named `PLOTLY_RENDERER`.  If this environment variable is set to the name of an available renderer, this renderer is set as the default.

#### Overriding The Default Renderer
You can override the default renderer temporarily by passing the name of an available renderer as the `renderer` keyword argument to a figure's `show()` method. For example, to use the `svg` renderer (described later) without changing the default renderer, set `renderer="svg"`:

```python
import plotly.graph_objects as go
fig = go.Figure(
    data=[go.Bar(y=[2, 1, 3])],
    layout_title_text="A Figure Displayed with the 'svg' Renderer"
)
fig.show(renderer="svg")
```

#### Built-in Renderers
In this section, we will describe the built-in renderers so that you can choose the one(s) that best suit your needs.

##### Interactive Renderers
Interactive renderers display figures using the plotly.js JavaScript library and are fully interactive, supporting pan, zoom, hover tooltips, etc.

###### `notebook`
This renderer is intended for use in the classic [Jupyter Notebook](https://jupyter.org/install.html) (not JupyterLab). The full plotly.js JavaScript library bundle is added to the notebook the first time a figure is rendered, so this renderer will work without an internet connection.

This renderer is a good choice for notebooks that will be exported to HTML files (Either using [nbconvert](https://nbconvert.readthedocs.io/en/latest/) or the "Download as HTML" menu action) because the exported HTML files will work without an internet connection.

> Note: Adding the plotly.js bundle to the notebook adds a few megabytes to the notebook size. If you can count on always having an internet connection, you may want to consider using the `notebook_connected` renderer if notebook size is a constraint.

###### `notebook_connected`
This renderer is the same as `notebook` renderer, except the plotly.js JavaScript library bundle is loaded from an online CDN location.  This saves a few megabytes in notebook size, but an internet connection is required in order to display figures that are rendered this way.

This renderer is a good choice for notebooks that will be shared with [nbviewer](https://nbviewer.jupyter.org/) since users must have an active internet connection to access nbviewer in the first place.

###### `kaggle` and `azure`
These are aliases for `notebook_connected` because this renderer is a good choice for use with [Kaggle Notebooks](https://www.kaggle.com/docs/notebooks) and [Azure Notebooks](https://notebooks.azure.com/).

###### `colab`
This is a custom renderer for use with [Google Colab](https://colab.research.google.com).

###### `browser`
This renderer will open a figure in a browser tab using the default web browser.  This renderer can only be used when the Python kernel is running locally on the same machine as the web browser, so it is not compatible with Jupyter Hub or online notebook services.

> Implementation Note 1: In this context, the "default browser" is the browser that is chosen by the Python [`webbrowser`](https://docs.python.org/3.7/library/webbrowser.html) module.

> Implementation Note 2: The `browser` renderer works by setting up a single use local webserver on a local port. Since the webserver is shut down as soon as the figure is served to the browser, the figure will not be restored if the browser is refreshed.

###### `firefox`, `chrome`, and `chromium`
These renderers are the same as the `browser` renderer, but they force the use of a particular browser.

###### `iframe` and `iframe_connected`
These renderers write figures out as standalone HTML files and then display [`iframe`](https://www.w3schools.com/html/html_iframe.asp) elements that reference these HTML files. The `iframe` renderer will include the plotly.js JavaScript bundle in each HTML file that is written, while the `iframe_connected` renderer includes only a reference to an online CDN location from which to load plotly.js.  Consequently, the `iframe_connected` renderer outputs files that are smaller than the `iframe` renderer, but it requires an internet connection while the `iframe` renderer can operate offline.

This renderer may be useful when working with notebooks that contain lots of large figures.  When using the `notebook` or `notebook_connected` renderer, all of the data for all of the figures in a notebook are stored inline in the notebook itself. If this would result in a prohibitively large notebook size, an `iframe` or `iframe_connected` renderer could be used instead. With the `iframe` renderers, the figure data are stored in the individual HTML files rather than in the notebook itself, resulting in a smaller notebook size.

> Implementation Note: The HTML files written by the `iframe` renderers are stored in a subdirectory named `iframe_figures`.  The HTML files are given names based on the execution number of the notebook cell that produced the figure. This means that each time a notebook kernel is restarted, any prior HTML files will be overwritten.  This also means that you should not store multiple notebooks using an `iframe` renderer in the same directory, because this could result in figures from one notebook overwriting figures from another notebook.


###### `plotly_mimetype`

The `plotly_mimetype` renderer creates a specification of the figure (called a MIME-type bundle), and requests that the current user interface displays it. User interfaces that support this renderer include [JupyterLab](https://jupyterlab.readthedocs.io/en/stable/), [nteract](https://nteract.io/), and the Visual Studio Code [notebook interface](https://code.visualstudio.com/docs/python/jupyter-support).

###### `jupyterlab`, `nteract`, and `vscode`
These are aliases for `plotly_mimetype` since this renderer is a good choice when working in JupyterLab, nteract, and the Visual Studio Code notebook interface. Note that in VSCode Notebooks, the version of Plotly.js that is used to render is provided by the [vscode-python extension](https://code.visualstudio.com/docs/languages/python) and often trails the latest version by several weeks, so the latest features of `plotly` may not be available in VSCode right away. The situation is similar for Nteract.

##### Static Image Renderers
A set of renderers is provided for displaying figures as static images. See the [Static Image Export](https://plotly.com/python/static-image-export/) page for more information on getting set up.

###### `png`, `jpeg`, and `svg`
These renderers display figures as static `.png`, `.jpeg`, and `.svg` files, respectively.  These renderers are useful for user interfaces that do not support inline HTML output, but do support inline static images.  Examples include the [QtConsole](https://qtconsole.readthedocs.io/en/stable/), [Spyder](https://www.spyder-ide.org/), and the PyCharm [notebook interface](https://www.jetbrains.com/help/pycharm/jupyter-notebook-support.html).

```python
import plotly.graph_objects as go
fig = go.Figure(
    data=[go.Bar(y=[2, 1, 3])],
    layout_title_text="A Figure Displayed with the 'png' Renderer"
)
fig.show(renderer="png")
```

###### PDF
This renderer displays figures as static PDF files. This is especially useful for notebooks that will be exported to PDF files using the LaTeX export capabilities of [`nbconvert`](https://nbconvert.readthedocs.io/en/latest/).

##### Other Miscellaneous Renderers

###### JSON
In editors that support it (JupyterLab, nteract, and the Visual Studio Code notebook interface), this renderer displays the JSON representation of a figure in a collapsible interactive tree structure.  This can be very useful for examining the structure of complex figures.

##### Multiple Renderers
You can specify that multiple renderers should be used by joining their names on `"+"` characters. This is useful when writing code that needs to support multiple contexts. For example, if a notebook specifies a default renderer string of  `"notebook+plotly_mimetype+pdf"`, then this notebook would be able to run in the classic Jupyter Notebook as well as in JupyterLab, and it would support being exported to PDF using `nbconvert`.

#### Customizing Built-In Renderers
Most built-in renderers have configuration options to customize their behavior.  To view a description of a renderer, including its configuration options, access the renderer object using dictionary-style key lookup on the `plotly.io.renderers` configuration object and then display it.  Here is an example of accessing and displaying the `png` renderer.

```python
import plotly.io as pio
png_renderer = pio.renderers["png"]
png_renderer
```

From this output, you can see that the `png` renderer supports 3 properties: `width`, `height`, and `scale`.  You can customize these properties by assigning new values to them.

Here is an example that customizes the `png` renderer to change the resulting image size, sets the `png` renderer as the default, and then displays a figure.

```python
import plotly.io as pio
png_renderer = pio.renderers["png"]
png_renderer.width = 500
png_renderer.height = 500

pio.renderers.default = "png"

import plotly.graph_objects as go
fig = go.Figure(
    data=[go.Bar(y=[2, 1, 3])],
    layout_title_text="A Figure Displayed with the 'png' Renderer"
)
fig.show()
```

You can also override the values of renderer parameters temporarily by passing them as keyword arguments to the `show()` method.  For example

```python
import plotly.graph_objects as go

fig = go.Figure(
    data=[go.Bar(y=[2, 1, 3])],
    layout_title_text="A Figure Displayed with the 'png' Renderer"
)
fig.show(renderer="png", width=800, height=300)
```

### Displaying figures in Plotly Studio

Use [Plotly Studio](https://plotly.com/studio?utm_medium=graphing_libraries&utm_content=python_renderers) to build data apps with Plotly figures using natural language and AI. Describe the charts you want to Plotly Studio, which generates them within a [Dash](https://plotly.com/dash/?utm_medium=graphing_libraries&utm_content=python_renderers) app that you can publish to [Plotly Cloud](https://plotly.com/cloud/?utm_medium=graphing_libraries&utm_content=python_renderers) or [Dash Enterprise](https://plotly.com/dash/?utm_medium=graphing_libraries&utm_content=python_renderers).

```python hide_code=true
from IPython.display import HTML
HTML('<div style="text-align: center;"><iframe src="https://www.youtube.com/embed/ZGWMv7PQn-U?si=sRuSNPZWD1AzZsCf&mute=1&rel=0" width="100%" height="600" frameborder="0" allowfullscreen></iframe></div>')
```

### Displaying figures in Dash

[Dash](https://plotly.com/dash/?utm_medium=graphing_libraries&utm_content=python_renderers) is the best way to build analytical apps in Python using Plotly figures. To run the app below, run `pip install dash`, click "Download" to get the code and run `python app.py`.

Get started  with [the official Dash docs](https://dash.plotly.com/installation) and **learn how to effortlessly [style](https://plotly.com/dash/design-kit/?utm_medium=graphing_libraries&utm_content=python_renderers) & publish apps like this with <a class="plotly-red" href="https://plotly.com/dash/?utm_medium=graphing_libraries&utm_content=python_renderers">Dash Enterprise</a> or <a class="plotly-red" href="https://plotly.com/cloud/?utm_medium=graphing_libraries&utm_content=python_renderers">Plotly Cloud</a>.**


```python hide_code=true
from IPython.display import IFrame
snippet_url = 'https://python-docs-dash-snippets.herokuapp.com/python-docs-dash-snippets/'
IFrame(snippet_url + 'renderers', width='100%', height=1200)
```

<div style="font-size: 0.9em;"><div style="width: calc(100% - 30px); box-shadow: none; border: thin solid rgb(229, 229, 229);"><div style="padding: 5px;"><div><p><strong>Sign up for Dash Club</strong> → Free cheat sheets plus updates from Chris Parmer and Adam Schroeder delivered to your inbox every two months. Includes tips and tricks, community apps, and deep dives into the Dash architecture.
<u><a href="https://go.plotly.com/dash-club?utm_source=Dash+Club+2022&utm_medium=graphing_libraries&utm_content=inline">Join now</a></u>.</p></div></div></div></div>


## Displaying Figures Using `ipywidgets`
Plotly figures can be displayed in [ipywidgets](https://ipywidgets.readthedocs.io/en/stable/) contexts using `plotly.graph_objects.FigureWidget` objects.  `FigureWidget` is a figure graph object (just like `plotly.graph_objects.Figure`), so you can add traces to it and update it just like a regular `Figure`.  But `FigureWidget` is also an `ipywidgets` object, which means that you can display it alongside other `ipywidgets` to build user interfaces right in the notebook.

See the [Plotly FigureWidget Overview](https://plot.ly/python/figurewidget/) for more information on integrating `plotly.py` figures with `ipywidgets`.

It is important to note that `FigureWidget` does not use the renderers framework discussed above, so you should not use the `plotly.io.show` function on `FigureWidget` objects.


## Performance

No matter the approach chosen to display a figure, [the figure data structure](https://plotly.com/python/figure-structure/) is first (automatically, internally) serialized into a JSON string before being transferred from the Python context to the browser (or [to an HTML file first](https://plotly.com/python/interactive-html-export/) or [to Kaleido for static image export](https://plotly.com/python/static-image-export/)).

*New in v5.0*

The default JSON serialization mechanism can be slow for figures with many data points or with large `numpy` arrays or data frames. **If [the `orjson` package](https://github.com/ijl/orjson) is installed**, `plotly` will use that instead of the built-in `json` package, which can lead to **5-10x** speedups for large figures.

Once a figure is serialized to JSON, it must be rendered by a browser, either immediately in the user's browser, at some later point if the figure is exported to HTML, or immediately in Kaleido's internal headless browser for static image export. Rendering time is generally proportional to the total number of data points in the figure, the number of traces and the number of subplots. In situations where rendering performance is slow, we recommend considering [the use of `plotly` WebGL traces](/python/webgl-vs-svg/) to exploit GPU-accelerated rendering in the browser, or [using the Datashader library to do Python-side rendering](/python/datashader/) before using `px.imshow()` to render the figure.
