Everything Slack has.
Plus things Slack can't do.
Slack's features, without Slack's lock-in.
Three things make Nib fundamentally different from every Slack alternative out there.
You own your workspace
Every workspace — Free or Unlimited — is its own canister on the Internet Computer. You are the controller. Upgrade it, export it, migrate it, or shut it down. No vendor lock-in, ever.
End-to-end encrypted DMs by default
Every 1:1 DM is encrypted in your browser with vetKeys before it leaves the page. Only you and the recipient can decrypt — not the admin, not the infrastructure, not us. No backdoor.
One flat price, any team size
Slack charges $8.75 per user per month. Nib is $19 flat for the whole team — 5 people or 500. A 20-person team saves $3,400 a year.
Plus everything you'd expect
Channels, DMs, and threads
Everything Slack has — public/private channels, group DMs, threaded replies, reactions, pinned messages, starred items, search.
Voice & video huddles
Low-latency huddles for ad-hoc team calls. Built-in to every channel. No separate Zoom required.
Canvas collaboration
Rich documents inside channels. Write meeting notes, specs, and docs that live alongside the conversation.
Workflow automation
No-code workflows that trigger on events — new message, keyword match, scheduled time. Like Slack Workflow Builder.
Incoming webhooks
GitHub, Jira, Linear, PagerDuty, GitLab, and generic webhooks. HMAC-verified, sanitized, safe.
App directory
Install bots and custom apps. Slash commands, block messages, full SDK. Permissions you control.
Retention & legal hold
Workspace-level retention policy (30d / 60d / 1y / forever). Channel-level legal holds for compliance.
Audit log
Every admin action recorded to the tamper-evident audit log. Export for SOC2 / ISO evidence.
Mobile apps
Native iOS and Android apps (Capacitor). Same experience as web. Push notifications via your own canister.
Slack import
Import your Slack workspace export (.zip) in minutes. Channels, messages, reactions, threads, users — all preserved.
Single sign-on
SAML and OIDC SSO on Unlimited. Wire up Okta, Azure AD, Google Workspace, or your own IdP in minutes.
Data export
Export your entire workspace as JSON anytime. Your messages are always yours.
Your workspace is your canister.
Every Nib workspace — Free or Unlimited — is its own canister on the Internet Computer. Your Internet Identity principal is a controller. No shared infrastructure, no multi-tenant database, no trust-us promises.
- You hold the keysYour II principal is registered as a canister controller. Nobody can read, copy, or upgrade it without your consent.
- Upgrade or export anytimeExport every message as JSON. Migrate the canister to a different subnet. Fork the code and self-host. No lock-in.
- Graduate to SNS governanceHand control to a Service Nervous System — even the original creator can't modify it without on-chain governance vote.
Security isn't a paid add-on.
Every workspace — free or paid — gets the same security primitives. SSO and compliance features unlock on paid tiers; the underlying cryptography is free for everyone.
vetKeys encryption
End-to-end encrypted direct messages using the IC's identity-based encryption. Only the recipient can decrypt — not even the canister controller.
Tamper-evident audit log
Every admin action — member changes, retention updates, webhook creation — written to an append-only log stored on-chain.
Message retention policies
Workspace-level automatic purge. Channel-level legal hold overrides retention for compliance investigations.
IP allowlist
Per-workspace CIDR allowlist for admin actions. Block access from unapproved networks.
Rate limiting
Per-principal sliding-window rate limits at the canister level. DoS-resistant by design.
HMAC-verified webhooks
GitHub, Jira, Linear, PagerDuty, GitLab — signatures verified with constant-time comparison. Markdown break-out sanitized.
How Nib stacks up
| Feature | Nib on ICP | Slack | Teams | Mattermost |
|---|---|---|---|---|
| Open source | ✓ | — | — | ✓ |
| End-to-end encrypted DMs | ✓ | — | — | — |
| You own the infrastructure | ✓ | — | — | self-host |
| AI on-chain (no 3rd party) | ✓ | — | — | — |
| No AWS/servers to manage | ✓ | ✓ | ✓ | — |
| Native mobile apps | ✓ | ✓ | ✓ | ✓ |
| Slack import | ✓ | — | limited | ✓ |
| Workspace-level retention | ✓ | paid only | paid only | ✓ |
| Price per user | $3 / mo | $8.75 | $6.00 | $10 |
Stop renting your team's conversations.
Spin up a workspace in 30 seconds. Free forever for small teams. Cancel whenever.
Open source · Apache 2.0 · Not affiliated with Slack Technologies, LLC