When should I use Bokeh instead of Plotly?

Interactive browser-based visualizations and real-time streaming dashboards with Python backends. Custom interactive widgets and linked plots for data exploration applications. Python-driven web apps with interactive charts without writing any JavaScript

When should I use Plotly instead of Bokeh?

Interactive charts and dashboards renderable in browsers, Jupyter notebooks, and Dash apps. Building data applications with Dash, Plotly's companion web framework for Python. Production-quality interactive visualizations for reports, web applications, and stakeholder tools

What are the main weaknesses of Bokeh?

Steeper learning curve than Plotly for standard chart types and common use cases. Large output file sizes for complex visualizations with many glyphs or data points. Less development momentum than Plotly in recent years; smaller community

What are the main weaknesses of Plotly?

Generated HTML and JavaScript bundles can be very large for complex or multi-chart pages. API inconsistencies between Plotly Express (simple) and Graph Objects (complex) can confuse users. Performance degrades with very large datasets above 100k data points rendered in the browser

Bokeh vs Plotly: Key Differences for Python Data Engineering

Data Visualization

Bokeh

Interactive Web Visualizations

★ 4.6

BSD-3-Clause

pip install bokeh

Plotly

Interactive Visualization Library

★ 4.8

MIT

pip install plotly

Side-by-Side Comparison

Bokeh

Plotly

Bokeh

Plotly

Best For

✓Interactive browser-based visualizations and real-time streaming dashboards with Python backends
✓Custom interactive widgets and linked plots for data exploration applications
✓Python-driven web apps with interactive charts without writing any JavaScript

✓Interactive charts and dashboards renderable in browsers, Jupyter notebooks, and Dash apps
✓Building data applications with Dash, Plotly's companion web framework for Python
✓Production-quality interactive visualizations for reports, web applications, and stakeholder tools

Best For

✓Interactive browser-based visualizations and real-time streaming dashboards with Python backends
✓Custom interactive widgets and linked plots for data exploration applications
✓Python-driven web apps with interactive charts without writing any JavaScript

✓Interactive charts and dashboards renderable in browsers, Jupyter notebooks, and Dash apps
✓Building data applications with Dash, Plotly's companion web framework for Python
✓Production-quality interactive visualizations for reports, web applications, and stakeholder tools

Weaknesses

•Steeper learning curve than Plotly for standard chart types and common use cases
•Large output file sizes for complex visualizations with many glyphs or data points
•Less development momentum than Plotly in recent years; smaller community

•Generated HTML and JavaScript bundles can be very large for complex or multi-chart pages
•API inconsistencies between Plotly Express (simple) and Graph Objects (complex) can confuse users
•Performance degrades with very large datasets above 100k data points rendered in the browser

Weaknesses

•Steeper learning curve than Plotly for standard chart types and common use cases
•Large output file sizes for complex visualizations with many glyphs or data points
•Less development momentum than Plotly in recent years; smaller community

•Generated HTML and JavaScript bundles can be very large for complex or multi-chart pages
•API inconsistencies between Plotly Express (simple) and Graph Objects (complex) can confuse users
•Performance degrades with very large datasets above 100k data points rendered in the browser

License

BSD-3-Clause

MIT

License

BSD-3-Clause

MIT

Install

pip install bokeh

pip install plotly

Install

pip install bokeh

pip install plotly

Rating

★ 4.6

★ 4.8

Rating

★ 4.6

★ 4.8

Key Features

Bokeh

1Interactive HTML charts rendered in the browser with pan, zoom, and hover
2Bokeh Server enables live streaming data dashboards with push updates
3Wide range of chart types: line, bar, scatter, heatmap, network graphs
4Widgets (sliders, dropdowns, buttons) for interactive filtering
5Embeds seamlessly into Jupyter notebooks and web applications

Plotly

1Interactive charts including scatter, bar, line, heatmap, 3D, and geographic plots
2Plotly Express high-level API for creating charts with a single function call
3Dash framework for building interactive data applications and internal dashboards
4Supports both static export (PNG, SVG) and interactive HTML output
5WebGL rendering for high-performance visualisation of large datasets

How Python Data Engineers Use These Tools

Bokeh

Data engineers use Bokeh to build interactive monitoring dashboards for pipeline metrics and data quality KPIs. A Bokeh Server app connects directly to a database, refreshes charts on a timer, and serves a browser-based dashboard — giving stakeholders a live view of pipeline health without requiring a separate BI tool.

Plotly

Python data engineers use Plotly to build interactive charts for pipeline monitoring dashboards, data quality reports, and stakeholder-facing analytics. Plotly Express integrates directly with Pandas DataFrames, making it straightforward to visualise query results, model outputs, and trend data. The Dash framework extends Plotly into full web applications with dropdowns, sliders, and callbacks — enabling data teams to build internal tools without a separate frontend.

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Individual Tool Pages

View Bokeh details →View Plotly details →

Side-by-Side Comparison

Bokeh

Plotly

Bokeh

Plotly

Best For

✓Interactive browser-based visualizations and real-time streaming dashboards with Python backends
✓Custom interactive widgets and linked plots for data exploration applications
✓Python-driven web apps with interactive charts without writing any JavaScript

✓Interactive charts and dashboards renderable in browsers, Jupyter notebooks, and Dash apps
✓Building data applications with Dash, Plotly's companion web framework for Python
✓Production-quality interactive visualizations for reports, web applications, and stakeholder tools

Best For

✓Interactive browser-based visualizations and real-time streaming dashboards with Python backends
✓Custom interactive widgets and linked plots for data exploration applications
✓Python-driven web apps with interactive charts without writing any JavaScript

✓Interactive charts and dashboards renderable in browsers, Jupyter notebooks, and Dash apps
✓Building data applications with Dash, Plotly's companion web framework for Python
✓Production-quality interactive visualizations for reports, web applications, and stakeholder tools

Weaknesses

•Steeper learning curve than Plotly for standard chart types and common use cases
•Large output file sizes for complex visualizations with many glyphs or data points
•Less development momentum than Plotly in recent years; smaller community

•Generated HTML and JavaScript bundles can be very large for complex or multi-chart pages
•API inconsistencies between Plotly Express (simple) and Graph Objects (complex) can confuse users
•Performance degrades with very large datasets above 100k data points rendered in the browser

Weaknesses

•Steeper learning curve than Plotly for standard chart types and common use cases
•Large output file sizes for complex visualizations with many glyphs or data points
•Less development momentum than Plotly in recent years; smaller community

•Generated HTML and JavaScript bundles can be very large for complex or multi-chart pages
•API inconsistencies between Plotly Express (simple) and Graph Objects (complex) can confuse users
•Performance degrades with very large datasets above 100k data points rendered in the browser

License

BSD-3-Clause

MIT

License

BSD-3-Clause

MIT

Install

pip install bokeh

pip install plotly

Install

pip install bokeh

pip install plotly

Rating

★ 4.6

★ 4.8

Rating

★ 4.6

★ 4.8

Key Features

Bokeh

1Interactive HTML charts rendered in the browser with pan, zoom, and hover
2Bokeh Server enables live streaming data dashboards with push updates
3Wide range of chart types: line, bar, scatter, heatmap, network graphs
4Widgets (sliders, dropdowns, buttons) for interactive filtering
5Embeds seamlessly into Jupyter notebooks and web applications

Plotly

1Interactive charts including scatter, bar, line, heatmap, 3D, and geographic plots
2Plotly Express high-level API for creating charts with a single function call
3Dash framework for building interactive data applications and internal dashboards
4Supports both static export (PNG, SVG) and interactive HTML output
5WebGL rendering for high-performance visualisation of large datasets

How Python Data Engineers Use These Tools