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Supabase Realtime

Postgres CDC + broadcast + presence — included with Supabase.

Visit Supabase Realtime
Free tier

200 concurrent connections, 2M messages/mo (shared with project)

  • Tied to Supabase project — pauses with the rest after idle.
  • Postgres-change subscriptions are the unique angle.
Alternatives

Drop-in alternatives

Solve a similar problem if you outgrow Supabase Realtime's free tier — or just want a second option in your back pocket.

Pusher Channels

Hosted WebSockets — the original "realtime as a service".

100 concurrent connections, 200k messages/day

Realtime2026-05

Ably

Realtime infra with global presence and history replay.

6M messages/mo, 200 concurrent connections, 200 channels

Realtime2026-05

Last verified 2026-05 · free-tier numbers shift — confirm at the pricing page before relying on a quota for a launch decision.