Community platforms shape who can participate, how conversation is moderated, whether old answers remain discoverable, and what the programme costs. Moving an established community is difficult, so the choice tends to outlast the campaign or launch that first created it.
Discord
- Founded. 2015 by Jason Citron.
- Origin. Built for gamers; expanded toward broader community use from 2020 onward.
- Scale. 200M+ monthly active users.
- Capabilities. Real-time chat; voice and video stage channels; threads; rich presence; free community use; mobile apps; bots and webhooks.
- Limits. Old conversations can be hard to find; server content is not indexed by search engines; multiple channels and fast-moving conversation require orientation for newcomers.
- Used by. Vercel/Next.js, Supabase, Cloudflare, Neon, the Rust community, LangChain, OpenAI’s developer community, Hugging Face, Anthropic, Astro, and Svelte.
- Use when. The programme needs real-time conversation, AMAs, office hours, or peer help and does not require a public searchable archive.
Slack
- Founded. 2009 (as Tiny Speck / Glitch); pivoted to Slack 2013. Acquired by Salesforce 2020.
- Scale. 32M+ daily active users.
- Capabilities. More than 2,600 integrations; threads; workflow tools; support for distributed work.
- Limits. The free plan exposes 90 days of message history. Paid-plan cost grows with the number of users.
- Used by. Kubernetes, CNCF projects, enterprise infrastructure communities, and the DevRel Collective.
- Use when. Members already use Slack, the programme can fund the required plan, or the community is invite-only.
Discourse
- Founded. 2013 by Jeff Atwood (co-founder of Stack Overflow), Sam Saffron, and Robin Ward.
- Open source. Yes; self-hostable. Also offered as managed SaaS.
- Capabilities. Threaded forums; indexed and searchable pages; badges; trust levels; moderation tools.
- Limits. The asynchronous forum format lacks the real-time presence of chat and may be less familiar to members accustomed to Discord or Slack.
- Used by. Rust users forum, Hashnode, Postman community, many language and project communities (Elixir, Julia, Pharo, etc.), Discourse’s own meta forum.
- Use when. Searchable Q&A and a public archive matter more than real-time presence; it can operate alongside Discord or Slack.
Circle (circle.so)
- Founded. 2020 by Sid Yadav (formerly Teachable).
- Positioning. Branded community sites combining discussions, courses, events, payments, AI agents, and native email.
- Used by. Course-creator communities and some technical communities.
- Pricing. Paid SaaS.
Mighty Networks
- Founded. 2017 by Gina Bianchini (formerly co-founder of Ning).
- Positioning. Community + courses + events + native commerce; emphasis on member-led activity.
- Reported scale. $500M+ earned through the platform in 2025; ~$48/mo average membership pricing.
- Used by. Creator-economy and course communities more often than developer-product communities.
Tribe (now Bettermode)
- Founded. 2019.
- Renamed. Bettermode.
- Positioning. Customisable branded community platform; over 10,000 communities reported.
- Capabilities. Customisation; embeddable widgets; API integration.
Khoros, Higher Logic, Vanilla Forums
- Khoros. Enterprise community software for B2B organisations.
- Higher Logic. Enterprise community software for associations and customer communities.
- Vanilla Forums. Forum platform.
These platforms focus on customer-success, association, and enterprise community use cases.
Reddit-style platforms
- Reddit itself. Some companies maintain subreddits (r/cloudflare, r/MongoDB, r/postgresql). Generally hosted, not company-controlled.
- Lemmy. Federated open-source Reddit alternative; small but growing developer-adjacent communities.
Stack Overflow (and Stack Exchange)
- Founded. 2008.
- Status in 2026. Question volume dropped roughly 95% from its 2014 peak by late 2025. The existing answer archive remains available. See Stack Overflow.
- Use when. Existing answers provide useful search results; current activity makes it unsuitable as the only managed community space.
GitHub Discussions
- Launched. 2020 by GitHub.
- Capabilities. Lives where the code lives; no separate signup; integrates with issues and code.
- Limits. Requires a GitHub account; moderation tooling is more limited than a dedicated forum platform.
- Used by. Next.js, Astro, Supabase, and other open-source projects.
Other platforms
- Element / Matrix. Federated; used by some open-source projects (especially those with privacy / federation values).
- IRC and IRCv3. Still used by FreeBSD, NetBSD, and some Linux projects.
- Zulip. Slack alternative with threading at the channel level; used by Rust language community development, Recurse Center.
- Mattermost. Open-source Slack alternative; used by some self-hosting communities.
- Rocket.Chat. Similar.
Multi-platform reality
DevRel programmes may divide work across several platforms:
- Discord or Slack for real-time community.
- Discourse or GitHub Discussions for long-form Q&A.
- GitHub for code / contributions.
- Stack Overflow as a knowledge archive (less actively, in 2026).
- Reddit if there is an active subreddit.
Community-CRM tools such as Common Room and LFX Community Data Platform combine identities and activity across these platforms. See Community CRM platforms.
Choosing
A comparison by requirement:
| Requirement | Platforms to assess |
|---|---|
| Real-time chat without per-user pricing | Discord |
| Existing Slack membership or workflows | Slack |
| Public, searchable Q&A | Discourse |
| Discussion next to an open-source repository | GitHub Discussions |
| Courses, memberships, and payments | Circle or Mighty Networks |
| Federation or privacy alignment | Matrix or Zulip |
A programme that needs both real-time chat and searchable Q&A can combine Discord with GitHub Discussions or Discourse.