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20+ Best Data Science Slack Communities to Join in 2025

A guide to the most active Slack groups for data, AI, and machine learning professionals.

05 Sep 2025 by Alexey Grigorev, Valeriia Kuka

Finding the right data science Slack community can make a big difference in how you learn, work, and grow in the field. Slack groups bring together data scientists, machine learning engineers, and AI enthusiasts from around the world. They’re places where you can ask technical questions, share projects, discover learning resources, and connect with peers working on similar challenges.

In this guide, we’ve collected some of the most active and useful data science Slack communities to join in 2025.

Why This List?

When you search for data science Slack communities, many of the lists you’ll find online are outdated. Some links point to broken Heroku pages, some communities no longer exist, and others have gone inactive.

Since it’s 2025, we decided to collect an updated list of active communities. Every Slack group included here is still running, with open links where possible, and organized into categories so you can quickly find what’s most relevant to you.

  1. General Data Science Communities
  2. Machine Learning and AI Communities
  3. Specialized Tools and Practices
  4. Programming Language Communities
  5. Diversity and Inclusion Communities
  6. Invite-Only Communities

1. General Data Science Communities

DataTalks.Club

One of the largest Slack communities dedicated to all things data, from analytics and visualization to machine learning and data engineering. Among its 78,000+ members, you’ll find data scientists, ML engineers, and enthusiasts who use the space to share knowledge, ask career questions, and join in discussions. You’ll find channels ranging from #career and #datascience to #book-of-the-week.

Join here

Open Data Science Community

A global community connecting data scientists, engineers, and researchers around open collaboration. You can share articles, tutorials, code, and advice, as well as create projects, events, and courses. Their Slack emphasizes peer learning and advancing open data science practices.

Join here

Data Science Salon

The official Slack space for the Data Science Salon and DSSelevate community. It’s a platform where you can connect with data science managers and practitioners through hosted chats, networking, industry news, and updates on upcoming events. The group grew out of the Data Science Salon conference and includes data scientists, ML engineers, and tech leads.

Join here

Data Science Learning Community

An open community focused on accessible learning in data science. It provides tools, resources, and peer support for you at all stages, whether you’re looking for your first data job or you’re an experienced professional continuing your learning. Their Slack is designed as a collaborative space to help you stay motivated without the high costs of traditional courses.

Join here

2. Machine Learning and AI Communities

MLOps Community

One of the largest global groups, with over 27,900 members, for practitioners working on machine learning in production. MLOps Community’s Slack hosts discussions on MLOps best practices, jobs, industry news, and events. You’ll find members ranging from engineers to researchers, sharing real-world challenges and solutions for operating ML systems at scale.

Join here

TWIML Community

A global Slack group for machine learning, deep learning, and AI practitioners. The community runs study groups for courses such as fast.ai Deep Learning, Stanford CS224N, and Deeplearning.ai, and also organizes special interest groups on topics like Swift for TensorFlow and Kaggle competitions. You can use the Slack channels to share tips, resources, and get support while working through these programs.

Join here

AI Accelerator Institute Slack

A community of over 9,300 members run by the AI Accelerator Institute. It’s a place where you can connect with peers, exchange ideas, and get feedback from others working in AI. You’ll find members ranging from practitioners to enthusiasts, and the channels cover networking, discussions, and support if you’re exploring applied AI.

Join here

Convergence by Comet ML

This Slack group is linked to Comet ML’s Convergence conference. The community focuses on topics around large language models, including evaluation methods, agentic AI, and responsible use of generative AI. It’s a space for you if you’re interested in the technical and practical aspects of building and deploying LLM-based applications.

Join here

3. Specialized Tools and Practices

dbt Community

A Slack group for data professionals who use or are interested in dbt. You can connect to share knowledge, improve your skills, and discuss data transformation practices. The community includes both newcomers and experienced users, with channels covering technical help, events, and best practices.

Join here

Data Visualization Society

A global community with over 14,000 members for those working with or interested in data visualization. Their Slack community has channels for introductions, specific visualization topics, and professional development. You’ll find members ranging from beginners to experienced practitioners, sharing resources, projects, and advice.

Join here

Spark NLP

A Slack community focused on natural language processing with Spark NLP, an open-source library built on Apache Spark. You can discuss NLP techniques, share resources, and get help with model integration from frameworks such as TensorFlow, ONNX, OpenVINO, and Llama.cpp. It’s a mix of developers, researchers, and practitioners working with NLP at scale.

Join here

Locally Optimistic

A Slack group for current and aspiring data analytics leaders. Started in New York in 2018, it has grown into an active community where you can exchange experiences, advice, and lessons learned with other analytics professionals. The group also supports local meetups alongside the online discussions.

Join here

Data Reliability Engineering Community

A Slack community focused on data reliability challenges. It brings together data engineers and scientists where you can share experiences, discuss common issues, and exchange best practices for building more reliable data systems.

Join here

4. Programming Language Communities

PySlackers

An inclusive Slack community with over 38,600 members for Python enthusiasts, ranging from beginners to professionals who have built their careers around the language. The group provides resources, support, and community projects, creating a space where you can learn, share knowledge, and collaborate.

PyLadies

An international mentorship group for women who use and love Python. 13,700+ members include full-time developers, hobbyists, and contributors to open-source projects. This Slack community provides a space where you can learn, network, and get support to become an active participant and leader in the Python community.

Join here

R-Team for Data Analysis

A global Slack group for those learning and working with R. The community encompasses a wide range of topics, from beginner questions to advanced subjects like time series analysis. You’ll find popular channels like #r-help for coding questions, #resources for learning materials, #jobs for opportunities, and #mooc_courses for course discussions.

Join here

R-Ladies

A global Slack community supporting gender diversity in the R programming ecosystem. You can use the space to share news, discuss packages, and exchange ideas in a safe and welcoming environment. This Slack community connects R-Ladies chapters worldwide and serves as a hub for networking, learning, and collaboration.

Join here

5. Diversity and Inclusion Communities

PyLadies

An international mentorship group for women who use and love Python. 13,700+ members include full-time developers, hobbyists, and contributors to open-source projects. The Slack provides a space where you can learn, network, and get support to become an active participant and leader in the Python community.

Join here

R-Ladies

A global Slack community supporting gender diversity in the R programming ecosystem. You can use the space to share news, discuss packages, and exchange ideas in a safe and welcoming environment. This Slack community connects R-Ladies chapters worldwide and serves as a hub for networking, learning, and collaboration.

Join here

Data Angels

A community founded in 2020 to support women across all areas of data. The Slack with more than 2,600 members hosts discussions, mentorship programs, and panels, as well as local meetups. It’s a space where you can collaborate, grow your career, and network within the wider data ecosystem.

Join here

6. Invite-Only Communities

Some communities have Slack groups but don’t provide a public link to join. To access these, you’ll need either an existing account or an invitation from an administrator or an active member. We’ve listed these separately below.

AI Researchers and Enthusiasts

A Slack group for researchers and hobbyists interested in artificial intelligence. The community is open to all levels, from early learners to advanced researchers, and provides a space where you can exchange theories, concepts, and perspectives on AI.

Sign up here

DSNet – Data Science Network

A growing Slack community supported by Jovian.ml, with open channels, events, and shared resources for those in data science. It serves as a space where you can learn from others, exchange insights, and stay connected with developments across the field.

Sign up here

Great Expectations (GX Core)

The Slack community around Great Expectations, an open-source tool for data quality. Thousands of members contribute by sharing deployment experiences, discussing best practices, and helping teams improve reliability in their data workflows. You can join to share your own experiences and learn from others.

Sign up here

Academic Data Science Alliance (ADSA)

A Slack group connected to ADSA, a professional association focused on advancing responsible and inclusive use of data science and AI in academic research, education, and training. You’ll find academics, educators, and practitioners collaborating on the future of data science in higher education.

Sign up here

datascientists

A Slack group focused on data science and related fields such as data warehouses, business intelligence, and analytics. You can discuss technical challenges, share tools and resources, and exchange advice from your own professional experiences. The community is aimed at both newcomers and experienced practitioners who want to learn from each other and expand their professional network.

Sign up here

AI-ML-Data Science Lovers

A laid-back community for those interested in AI, machine learning, and data science. Unlike some of the more specialized or technical groups, this Slack is more conversational and opinion-driven. You can share thoughts on industry developments, discuss general concepts, and exchange knowledge in a relaxed environment. It’s a good place to keep in touch with a broad range of perspectives across the field.

Sign up here

KaggleNoobs

A beginner-friendly Slack community centered on Kaggle competitions and projects. The group provides guidance if you’re new to data science and want to improve your coding and modeling skills through practice. You can ask and answer questions, share tutorials, and discuss strategies for specific challenges. It’s particularly useful if you’re just getting started with Kaggle as a way to learn data science through real-world problems.

Sign up here

Conclusion

Joining a Slack community can be one of the easiest ways for you to stay connected in the fast-moving worlds of data science, machine learning, and AI. These groups give you access to peers who are facing similar challenges, channels full of resources and tutorials, and opportunities to network or even find your next project or job.

Did we miss a community you find valuable? Let us know in the comments so we can keep this list up to date.

Frequently Asked Questions

How do I join these Slack communities? Most communities have a public invitation link that you can click to join directly. For invite-only communities, you'll need to sign up on their website or request an invitation from an existing member. Some require approval before you can join.
Are these communities free to join? Yes, all the Slack communities listed here are free to join. However, some may have premium tiers or paid events associated with their broader organizations.
What should I expect when I first join? Most communities have an introduction channel where you can introduce yourself as a new member. Take time to read the community guidelines, explore different channels, and observe the conversation style before jumping in. Many have specific channels for beginners or newcomers.
How active are these communities? Activity levels vary significantly. Large communities like MLOps Community (27,900+ members) and PySlackers (38,600+ members) have constant activity, while smaller, specialized groups may have more focused but less frequent discussions. We've only included communities that are currently active as of 2025.
Can I join multiple communities? Absolutely! You can be a member of several communities to get diverse perspectives and access different types of expertise. Just be mindful of managing notifications across multiple Slack workspaces.
What if I'm a complete beginner? Several communities are explicitly beginner-friendly, including Data Science Learning Community, KaggleNoobs, and the general channels in DataTalks.Club. Look for channels labeled "beginners," "newbies," or "help" in any community you join.
How do I find job opportunities in these communities? Many communities have dedicated job boards or career channels. MLOps Community, DataTalks.Club, and Data Science Salon are particularly good for job postings. Always read the community guidelines about job posting etiquette before you share opportunities.
Can I promote my own projects or content? Most communities allow self-promotion in moderation, but always check the specific rules first. Many have dedicated channels for sharing projects, blog posts, or resources. The key is for you to be genuinely helpful to the community, not just promotional.
What if a community becomes inactive or the link doesn't work? Since the Slack ecosystem changes frequently, some links may break over time. We've verified all links as of September 2025, but if you find an issue, try searching for the community's main website or reaching out to current members on other platforms like LinkedIn or Twitter.

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