Ember launches open-source Slack on Cloudflare.
Ember is an MIT-licensed, self-hosted team chat with rooms, threads, DMs, search, media attachments, Slack-compatible webhooks, and an AI assistant. It deploys to a user's Cloudflare account in one click and can run on the free tier. [GitHub repository](https://github.com/NYLLON-SOFTWARE/ember-cloudflare)
Ember makes a strong case for owning team communication infrastructure, though its Cloudflare dependency and smaller feature set make it a focused Slack alternative rather than a full replacement.
- –Durable Objects and R2 keep messages and files in the user's Cloudflare account.
- –Slack-compatible webhooks support CI pipelines, Grafana, Alertmanager, attachments, and Block Kit.
- –The built-in @ember assistant can use Workers AI, Claude, GPT, or Gemini through AI Gateway.
- –Free-tier economics are attractive for small teams, with paid Cloudflare usage scaling at the account level.
- –It lacks Slack's huddles, workflow builder, broad app ecosystem, and enterprise features.
DISCOVERED
2h ago
2026-11-10
PUBLISHED
7h ago
2026-11-10
RELEVANCE
AUTHOR
Kevin Rose