Slack

Identity, authentication, and account management for your users.

Real-time text communication between users — channels, DMs, and threads.

Alert users about events relevant to them across multiple delivery channels.

Let users find content quickly — from simple filters to full-text and semantic search.

Upload, store, and serve user-generated files — documents, images, and media.

Control who can do what inside your product — from simple role toggles to fine-grained, resource-scoped authorization.

An immutable record of who did what, when, and from where — for compliance, security investigation, and customer-facing transparency.

Prevent abuse, contain bursts, and enforce fair use across authenticated APIs, public endpoints, and expensive operations.

Guide new users from sign-up to their first meaningful outcome — the moments that determine whether they ever come back.