Ember
Ember is a free, MIT-licensed team chat app inspired by Slack and Campfire that runs entirely on your own Cloudflare account, with rooms, threads, DMs, search, Slack-compatible webhooks and optional AI. A small team can run it for $0, or $5 a month for the whole account.
About Ember
Ember: open-source team chat on your own Cloudflare account
Ember is a free, MIT-licensed, Slack- and Campfire-inspired chat app that deploys to Cloudflare in one click. Messages live in Durable Objects and files in R2 in your own account, and every message is kept.
Features
- Rooms, private rooms, DMs and threads with mentions, quotes, reactions and edits
- Search across every message with Slack-style filters
- Files up to 250 MB, inline pictures and video
- Slack-compatible incoming webhooks (attachments, Block Kit) and bots that answer
- Optional @ember AI and custom agents via Workers AI or Claude, GPT and Gemini through AI Gateway
- Installable web app with push notifications, custom branding and custom domains
Cost
Ember is free. Cloudflare charges $0 on Workers Free for a small team (about 100 people a day sending 30 messages each, per the maintainers) or $5 a month for the whole account on Workers Paid. R2 includes 10 GB free.
Limits
No voice or video calls, app directory, guest accounts, scheduled messages or full message export yet; support is via GitHub issues.
Value & Audience
Value Proposition
Team chat without per-seat pricing or message-history limits: deploy once to your own Cloudflare account, keep every message, and pay Cloudflare $0 to $5 a month for the whole team.
Problem Solved
Hosted chat tools charge per person and limit or delete history on free plans, and teams do not own where their conversations live.
Tech Stack
Social & Links
Social
Additional Links
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Gallery
Feedback & Roadmap
Ember FAQ
Common questions about Ember's features, pricing, and use cases
Is Ember free to use?
Yes. Ember is open source and free to use.
What are some alternatives to Ember?
Popular Communication & Messaging alternatives to Ember include OddsRabbit, Mumara and Audio Cable.
Ember appears in
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