Rocket.Chat — system requirements

Self-hosted team chat platform backed by MongoDB, an alternative to Slack. · website · repository

Minimum RAM

2 GB

“Scenario: Starter - No High Availability - Concurrent users ≤ 25 — Rocket.Chat: 1 vCPU, 2 GiB Memory, 40GB Storage”

Scope: Starter tier (no HA, ≤ 25 concurrent users) — the lowest of three published scenario tiers; excludes MongoDB's own separate resource allocation. Figure transcribed from a table rendered as an image on the source page, not machine-readable text; independently viewed and confirmed by both the harvester and verifier. · official source · retrieved 2026-07-26

Minimum CPU cores

1 core

“Scenario: Starter - No High Availability - Concurrent users ≤ 25 — Rocket.Chat: 1 vCPU, 2 GiB Memory, 40GB Storage”

No official figure published for: recommended RAM, recommended CPU cores

Requirements page publishes three scenario tables as images (Starter/Pro-HA/Enterprise-HA) rather than a single general recommended figure; Starter used as the minimum.

We publish nothing we can't source. Evidence of the gap.

External services

mongodb (required) — source

Container

Image: rocketchat/rocket.chat · compressed size (amd64): 296 MB · architectures: amd64, arm64 · source, retrieved 2026-08-10

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