Discord and Slack are widely used real-time chat platforms for developer communities. The choice affects access, moderation, message history, and cost. Community platforms compares them with forums, Discourse, and other options.
Discord
History
- Founded. 2015 by Jason Citron and Stanislav Vishnevskiy.
- Origin. Built for gamers; gradually pivoted toward broader community use from 2019 onward.
- Scale. 200M+ monthly active users.
Why developer communities use it
- Free for community use. No per-user pricing.
- Servers, channels, and threads support discussion across multiple topics.
- Voice and stage channels support office hours and meetups without external tooling.
- Bots and webhooks support welcome flows, GitHub integration, and moderation.
- Persistent membership. Members remain in a server across sessions.
Used by
Examples include:
- Vercel / Next.js, Supabase, Neon, PlanetScale.
- The Rust language community.
- AI developer communities including LangChain, Hugging Face, OpenAI, Anthropic, Pinecone, and Modal.
- Frontend framework communities including Astro, Svelte, Solid, and Qwik.
- Cloudflare, DigitalOcean.
Weaknesses
- Archive retrieval. Old conversations can be hard to find.
- Search indexing. Server content is not indexed by Google.
- New-member orientation. Multiple channels and fast-moving conversation require context.
- Moderation. Large servers require staff processes and moderation bots.
How to run a Discord well
- Welcome flow. Pin a clear welcome with rules, useful channels, and how to ask for help.
- Channel structure. Keep the channel count low enough to navigate; use threads for topic-specific conversations.
- Office hours and stage channels. Schedule predictable events.
- Staffing. Have visible team-member presence at predictable hours.
- Recognition. Recognise useful community members through roles, merchandise, or stage events.
- Moderation. Apply clear rules consistently and explain moderation actions where appropriate.
Slack
History
- Founded. 2009 (as Tiny Speck / Glitch). Pivoted to Slack in 2013. Launched publicly 2014. Acquired by Salesforce 2020.
- Scale. 32M+ daily active users.
Why it remains for some communities
- Existing use. Employees at many large enterprises already use Slack, so a customer community may not require another application.
- Integrations. More than 2,600 integrations.
- Threading. Conversations support threaded replies.
- Workflows. Slack includes a workflow builder and automation.
The 2022 message-limit change
In 2022, Slack changed its free-tier policy to limit message history to 90 days. Previously, free-tier communities could access their full history. Communities that needed older history had to move to a paid plan or migrate to another platform.
Used by
- Enterprise-facing developer communities (Snowflake’s community, Confluent’s community, many enterprise infrastructure products).
- The DevRel Collective itself (the professional Slack community of DevRel practitioners).
- Kubernetes community Slack.
- CNCF projects.
- Some long-established communities that predate Discord’s rise.
Weaknesses for community use
- Cost scales with members. Paid-plan cost grows with the size of the community.
- Per-workspace silo. Users need to switch workspaces to access different communities.
When to choose Slack over Discord
- Your customers are enterprise organisations whose employees already use Slack.
- You can absorb the linear per-user cost.
- Your conversations require threaded replies.
- You have an existing Slack community with valuable history.
Discord vs Slack: quick decision
| Question | Discord | Slack |
|---|---|---|
| Threading? | Threads | Threads |
| Voice/video built in? | Yes | Yes (huddles) |
| Mobile apps? | Yes | Yes |
| Bots/integrations? | Bots and webhooks | 2,600+ integrations |
| Per-user community pricing? | No | Yes on paid plans |
Bridging and multi-platform community work
Some communities operate on both Discord and Slack with bots that mirror messages. Mirroring can make it unclear which platform is primary, so designate one for the original conversation.
Another approach uses Discord for real-time chat and GitHub Discussions or Discourse for searchable long-form Q&A. See Community platforms.