February 17, 2023


Open-source app framework for Machine Learning and Data Science.

Best for:

  • Data Scientists
  • Machine Learning Engineers
  • Research Analysts

Use cases:

  • Rapid prototyping of data applications
  • Real-time data visualization
  • Interactive data exploration

Users like:

  • Data Analytics
  • Research and Development
  • Business Intelligence

What is Streamlit?

Quick Introduction.

Streamlit is an open-source app framework specifically crafted for Machine Learning (ML) and Data Science. This tool is suitable for anyone from individual data scientists tinkering on a project to large teams in enterprise environments. Essentially, Streamlit allows you to transform your data script into a shareable web application in just a few minutes. With a few lines of Python code, you can create sleek interactive web apps that visualize complex data workflows effectively. Streamlit brings simplicity and efficacy under one roof, embracing minimalism while offering powerful features.

Streamlit stands out because it simplifies the development process of sophisticated data apps. If you’re dealing with hefty datasets, developing predictive models, or creating real-time analytics dashboards, then Streamlit is a great fit. It’s built by data scientists for data scientists, making sure you won’t get bogged down by the unnecessary complexities encountered with traditional app development frameworks. Whether you’re working alone, in a small research team, or within a large organization, Streamlit can accommodate your needs and scale accordingly.

Pros and Cons


  1. User-Friendly: Its syntax is straightforward which significantly reduces the learning curve.
  2. Rapid Prototyping: Quickly transform data scripts into web applications, allowing fast iteration and feedback.
  3. Integration: Seamlessly integrates with popular Python libraries like Pandas, NumPy, and Matplotlib.


  1. Limited Customization: Some find it restrictive in terms of customization compared to traditional web frameworks.
  2. Performance: Performance might lag for very complex and data-heavy applications.
  3. Dependency on Python: Exclusively for Python users, leaving out those using other programming languages.


  • Effortlessly create interactive web apps for data visualization.
  • User-friendly and minimal coding required.
  • Perfect for rapid prototyping and data science collaboration.

Features and Functionality

  • Interactive Widgets: Easily add sliders, buttons, and other widgets to your app to enhance interactivity and collect user input.
  • Automatic Caching: Automatically caches function calls to speed up your app development process.
  • Live Code Editing: Modify your code in real time and immediately see the results, making troubleshooting and changes much simpler.
  • Data Visualization: Integrates effortlessly with visualization libraries like Matplotlib, Seaborn, and Plotly to display dynamic and informative graphs.
  • Deployment Ready: Can be deployed on cloud services or locally, making sharing apps within an organization or to the public straightforward.

Integration and Compatibility

Streamlit is designed primarily for use with Python, and it integrates seamlessly with many popular data science libraries including Pandas, NumPy, Matplotlib, Plotly, and more. Due to its focus on data science and Python, it doesn’t offer integration with non-Python environments. However, this focus ensures that it works exceptionally well within its intended use-case without unnecessary frills. Furthermore, because it’s built with simplicity in mind, it’s easily usable with services like Heroku, AWS, and Google Cloud Platform for deployment solutions.

Benefits and Advantages

  • Ease of Use: Minimal coding required allows quick setup and development.
  • Speed: Rapid skeleton construction of interactive data applications in minutes.
  • Effortless Sharing: Streamlit seamlessly hosts applications on the web for easy sharing within teams and public.
  • Interactive Exploration: Allows for real-time tweaking and exploration of data analytics models.
  • Integration with Python Ecosystem: Leverages the power and flexibility of Python data science libraries.

Pricing and Licensing

Streamlit is completely free and open-source under the Apache 2.0 license.

Do you use Streamlit?

There are no hidden fees, subscription tiers, or premium upgrades—everything is available from the start. This approach lowers the barrier to entry significantly, making Streamlit accessible to individual data scientists, educational institutions, and businesses of all scales.

Support and Resources

Streamlit comes with a comprehensive suite of support and documentation including well-detailed guides, step-by-step tutorials, and an ever-growing repository of example apps. In addition, users can tap into an active community forum where questions can be asked and shared insights can be gained. While there isn’t a dedicated customer support team due to its open-source nature, the community-driven model ensures robust and rapid support for any issues or feature requests.

Streamlit as an Alternative to:

When compared to traditional web frameworks like Django or Flask, Streamlit shines by offering a streamlined, no-fuss way to get data science applications up and running. Unlike Django, which requires understanding of the intricacies of web development, Streamlit avoids everything not strictly related to creating and presenting interactive data apps. Compared to specialized BI tools like Tableau, Streamlit is more flexible and extensible, allowing for unlimited customization and extending beyond predefined dashboard functionalities.

Alternatives to Streamlit

  • Dash by Plotly: Ideal if you’re looking for a more robust application with extended ecosystem integration within Plotly. Suitable for production-level deployment but requires more coding and setup.
  • Voila by QuantStack: Great for those who prefer using Jupyter notebooks. Converts Jupyter notebooks into standalone web applications with little effort and is perfect for educators and researchers.
  • Panel by HoloViz: Provides flexibility and capacity for constructing apps and dashboards using high-level Python libraries, suitable for advanced users wanting to build highly customized apps.


Streamlit brings a fresh approach to data science and ML web app development, making it accessible, easy, and quick for anyone in the field. Its intuitive design and focus on simplicity allow users to develop powerful, interactive data applications rapidly. Although it may not offer the depth of customization seen in traditional web frameworks, its benefits in terms of speed, efficiency, and ease of use make it a fantastic choice for data scientists and ML practitioners. Whether you’re looking to share insights within a team or present findings to stakeholders, Streamlit provides the perfect platform to make data dynamically interactive and easily accessible.

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