Popular ways to connect with the Scala community include forums, chat rooms, local user groups, and conferences.
The community is also the source of many libraries, tools, and other resources around Scala.
Forums
The Scala Center operates the following Discourse forums:
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users.scala-lang.org: The main forum for questions, discussions, and announcements about programming in Scala. Beginner questions are very welcome. Any question can and should receive a courteous and insightful answer. (Replaces the old scala-user and scala-announce groups.)
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contributors.scala-lang.org: For anything related to moving Scala forward; from Scala Platform library discussions, to Scala Improvement Process discussions, to development work on the Scala compiler, standard library, and modules. Core maintainers and open-source contributors are both welcome, as well as those who want to see what’s coming down the pipe and would like to be involved. (Replaces the old scala-internals, scala-language, scala-debate, scala-sips, and scala-tools groups.)
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teachers.scala-lang: Discussions related to the usage of Scala to teach programming: material, tooling, guidelines.
Discourse is an open-source forum and mailing list platform. You can participate via the web, or you can use “mailing list mode”, where you receive posts in your inbox and can reply to them via email. The web interface provides statistics, upvoting, polls, and other features. Posts can be written in Markdown, including syntax highlighting.
These forums are covered by the Scala Code of Conduct.
Akka operates a Discourse forum as well:
- discuss.akka.io: For discussion of the Akka libraries, Akka SDK, and reactive architectures.
Chat rooms
Our main chat platform is Discord, and the main Scala server is:
- Scala
- the #scala-users channel is especially beginner-friendly
- the #scala-contributors channel is about moving Scala forward
- the #jobs channel is the only place we allow job postings
- ask on #admin if you have questions or suggestions about the server itself
- there are many other channels, including #spark, #scala-js, and #scala-native
The server is covered by the Scala Code of Conduct.
Alternate clients such as Element are supported via a
Matrix bridge. Connect to #scala-lang:matrix.org to
access the main Discord channel, or explore #scala-space:matrix.org to see
channels from all over the Scala community (many are bridged in from other
places like Discord, Gitter, or IRC).
Scala-oriented Discord servers operated by the community include:
- IntelliJ: the IntelliJ IDEA development environment
- Scalameta: Scalameta-based tooling: Metals, Scalameta, Scalafix, Scalafmt, and Mdoc
- Play Framework: the Play web framework for Scala and Java
- Typelevel: the Typelevel ecosystem for pure-functional programming in Scala
- ZIO: the ZIO ecosystem for Type-safe, composable asynchronous and concurrent programming in Scala
- Laminar: the Laminar, Native Scala.js library for building user interfaces
- Smithy4s: the smithy4s for generating Scala code from Smithy files.
- indigo: the Indigo, Scala 2D game engine based on functional programming
- Scala Space: Discord server for VirtusLab’s and Software Mill’s open source projects
- Business4s: Scala community focused on product development and business
- Creative Scala: Making Scala fun through non-traditional means
English-language Scala rooms on other chat platforms besides Discord include:
International chat rooms are available as well:
- Scala Fr (Discord)
- scala/it (Discord)
- Scala Jp (Discord)
- Scala Poland (Slack)
- scala_ru (Telegram)
- Scala Ukraine (Telegram)
Note also that Stack Overflow offers languages other than English, for example the scala tag on es.stackoverflow.com.
Events
Conferences
See our events page.
Meetups
Some local Scala user groups are listed on Meetup.
ScalaBridge
Volunteers organizing free introductory Scala programming workshops for underrepresented groups, to improve diversity in the Scala community.
Tooling summits
Scala tooling summit is an event with a purpose of bringing together maintainers of build tools, linters, IDEs, and other tools. These summits are usually held alongside major Scala conferences. During the event they discuss ongoing problems within the tooling ecosystem and work towards solving them.
Previously held tooling summits:
- Scala Tooling Summit of September 2023
- Scala Tooling Summit of March 2023
The announcement of each new tooling summit will be public.
The Scala Center
The Scala Center is an open source foundation that brings together a coalition of individuals and organizations working together to contribute to Scala. See the Center’s FAQ.
Ambassadors
Ambassadors are key figures in the Scala community: speakers, organizers, teachers, content creators, open source maintainers, and so on. They are often present at community events, or open to answering questions.
To learn more and discover who is an ambassador near you: see the dedicated Scala Ambassadors page.
Scala jobs
Employers and job seekers can find each other in the #jobs channel of the Scala Discord.
Job postings are not allowed in our other forums and chat rooms.
The Scala Reddit has a monthly “who is hiring?” thread.
Scala on LinkedIn
The Scala Enthusiasts Group is a place for Scala professionals to share information and come into contact with people and companies using Scala.
Stack Overflow
Scala is an active topic on Stack Overflow, a very popular programmer Q&A site.
There is a large and active Scala community on the community-managed /r/Scala subreddit.
Sources of Scala news
Official:
- Blog/News Page on this site
- @scala_lang on Mastodon
- @scala_lang on Twitter
Community:
- Scala Times weekly Scala newspaper
- This Week in Scala weekly Scala newspaper
- Scala News source for Scala news and blog feeds
- Tooling Talks A series of talks about Scala and tooling.
- The Scala Logs Podcast with interviews with developers, open source contributors, subject matter experts, and the like
Many Scala users are active on Twitter for sharing Scala-related news items and opinions. Ask your Scala friends who they follow on Twitter (besides @scala_lang!).
Learning resources
- Scala Exercises
- Scala School
- Scala Puzzlers
- Scala Cookbook
- Interactive Tour
- Functional programming course/exercises
- Best Scala Tutorials On YouTube
Libraries and tools
Integrated Development Environments:
- Scala IDEs discusses main Scala IDEs
Finding libraries:
- Scaladex, maintained by the Scala Center, is “an index of the known Scala ecosystem”
- Awesome Scala is “a community driven list of useful Scala libraries, frameworks and software”
- Typelevel.org provides an assortment of popular libraries and extensions to Scala.
- Trending Scala repositories on GitHub
Staying current:
- Scala Times includes library releases
- #ThisWeekInScala includes library releases
Non-JVM platforms
- Scala.js compiles Scala code to JavaScript
- Scala Native compiles Scala code to LLVM for native execution
- Scala on Android community site
The Scala Discord has #scala-js, #scala-native, and #scala-android channels.
Security
To receive security announcements or contact us about security issues, see our security policy.
Reporting issues
If you’re having a problem with Scala, your first line of defense is our forums and chat rooms. The unexpected behavior you’re seeing might not be a bug. Especially if you’re new to the language, it’s best to discuss the matter with more experienced users before filing a bug report.
That said, bugs do occur and bug reports are valuable. You can report bugs here:
Scala 2 compiler, standard library, and language spec:
Scala 3 compiler and standard library additions:
Don’t forget to search past issues first to see if the issue has already been reported.
Scala open source
Want to start making open-source contributions to projects in the Scala ecosystem?
Scaladex lists projects welcoming contributions.
Also, on GitHub, a common convention is to use the label “good first issue” on issues that are especially easy on-ramps to getting started in a particular repo:
- “good first issue” tickets: GitHub link
And, some repos also use a “help wanted” label if the maintainers especially desire contributor attention:
- “help wanted” tickets: GitHub link
Phil Bagwell Memorial Scala Community Award
The Phil Bagwell Memorial Scala Community Award is given to individuals who have made significant efforts to grow the Scala Community.
Archives
Read-only archives of these retired groups remain available.