# Eclipse Mosquitto vs Supabase Realtime

| Attribute | Eclipse Mosquitto | Supabase Realtime |
|---|---|---|
| **Vioscale score** | 39.7 (16% (low)) | 50.5 (13% (low)) |
| activity.commits_last_30d | 13 | - |
| adoption.dependent_repos | 0 | - |
| adoption.github_stars | 11,158 | - |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true}` |
| description.long | - | A real-time service that synchronizes application state across clients, enabling database change notifications, user presence tracking, and low-latency message broadcasting for collaborative applications. |
| features.capabilities | - | `{"presence":true,"deployment":"cloud-hosted"}` |
| language.primary | C | - |
| platform.support | `{"cli":true,"mac":true,"linux":true,"windows":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://mosquitto.org","retrievedAt":"2026-08-19T18:21:59.744Z"}` | - |
| pricing.free_tier | yes | - |
| pricing.model | commercial | commercial |
| pricing.price_level | free | - |
| security.disclosure_policy | yes | - |
| security.iso27001 | - | yes |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Feclipse-mosquitto%2Fmosquitto&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (Realtime Messaging Infra)

| Capability | Eclipse Mosquitto | Supabase Realtime |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Presence | - | ✓ |
| Message history replay | - | - |
| Delivery guarantee | - | - |
| Global edge network | - | - |
| Scaling model | - | - |
| Offline reconnect catchup | - | - |
| Push notification bridge | - | - |
| Auth model | - | - |
| Self hostable | - | - |
| Mqtt support | - | - |
| Deployment | - | Cloud hosted |
| Pricing model | - | - |

*Source: Vioscale. Generated 2026-09-01T15:16:54.926Z. "-" = undocumented, not absent.*