# Castr vs MediaMTX

**Leader by Vioscale score:** Castr

| Attribute | Castr | MediaMTX |
|---|---|---|
| **Vioscale score** | 70.6 (44% (low)) | 62.7 (27% (low)) |
| activity.commits_last_30d | - | 100 |
| adoption.dependent_repos | - | 0 |
| adoption.github_stars | - | 19,992 |
| deployment.options | `{"cloud":true}` | `{"self_hosted":true}` |
| description.long | Consolidates live video streaming, hosting, multistreaming to multiple destinations, recording, and monetization into a single platform with 24/7 human support included. | An open-source media server that accepts incoming streams via various protocols (WebRTC, RTSP, RTMP, SRT, Media-over-QUIC, and others), automatically converts between them, and allows playback, recording, and forwarding to multiple destinations. It operates as a single, portable executable without external dependencies. |
| features.capabilities | `{"pricing_model":"flat_monthly_subscription","architecture_model":"browser_cloud_studio","simulcast_multi_destination_rtmp_output_hub":true,"srt_secure_reliable_transport_protocol_support":true}` | `{"pricing_model":"free_open_source","architecture_model":"open_source_local_encoder","gpl_or_permissive_oss_license":true,"simulcast_multi_destination_rtmp_output_hub":true,"srt_secure_reliable_transport_protocol_support":true}` |
| integrations.count | 5 | - |
| integrations.list | `[{"name":"Wirecast","native":true,"category":"broadcasting","direction":"inbound"},{"name":"YouTube","native":true,"category":"video","direction":"outbound"},{"name":"Facebook","native":true,"category":"social","direction":"outbound"},{"name":"LinkedIn","native":true,"category":"social","direction":"outbound"},{"name":"Twitch","native":true,"category":"streaming","direction":"outbound"}]` | - |
| language.primary | - | Go |
| license.spdx | - | MIT |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"ios":true,"web":true,"android":true}` | `{"cli":true,"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"subscription","plans":[{"free":false,"name":"Starter","summary":"$19.99/month or $199.99/year (2 months free)","features":["Multiple ingest protocols and SRT","Embedded player and video analytics","Cloud recording and Live-to-VOD"],"components":[{"kind":"fixed","amount":19.99,"period":"month","currency":"USD"}],"contactSales":false},{"free":false,"name":"Standard","summary":"$499.99/year","features":["SRT/RTMP pull links"],"components":[{"kind":"fixed","amount":499.99,"period":"year","currency":"USD"}],"contactSales":false},{"free":false,"name":"Premium","summary":"$199.99/month or $1,999.99/year (2 months free)","features":["Adaptive bitrate and custom transcoding","API access and three team members"],"components":[{"kind":"fixed","amount":199.99,"period":"month","currency":"USD"}],"contactSales":false},{"free":false,"name":"Enterprise","summary":"$3,499.99/year","features":["Low-latency playback and HLS for VOD","Dedicated support on annual billing"],"components":[{"kind":"fixed","amount":3499.99,"period":"year","currency":"USD"}],"contactSales":false},{"free":false,"name":"Events","summary":"$7,499.99/year","features":["Branded web app included","Native mobile and TV apps available as add-ons"],"components":[{"kind":"fixed","amount":7499.99,"period":"year","currency":"USD"}],"contactSales":false}],"addOns":[{"name":"DRM"},{"name":"Native mobile and TV apps"}],"summary":"From $19.99/month ($199.99/year with 2 months free). Free 7-day trial on Starter plan.","currency":"USD","freeTier":true,"sourceUrl":"https://castr.com/pricing/","retrievedAt":"2026-09-01T14:45:16.675Z","freeTrialDays":7,"startingPrice":{"amount":19.99,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` | `{"type":"free_open_source","summary":"Free, MIT licensed","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-09-01T14:46:43.779Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | mid | low |
| pricing.starting_price | `{"amount":19.99,"currency":"USD"}` | - |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 15 |
| release.history | - | `[{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.20.1","date":"2026-08-18T12:05:15Z","type":"stable","version":"v1.20.1"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.20.0","date":"2026-08-05T10:26:41Z","type":"stable","version":"v1.20.0"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.19.3","date":"2026-07-23T21:58:00Z","type":"stable","version":"v1.19.3"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.19.2","date":"2026-06-28T10:52:04Z","type":"stable","version":"v1.19.2"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.19.1","date":"2026-06-10T23:08:59Z","type":"stable","version":"v1.19.1"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.19.0","date":"2026-06-02T21:14:11Z","type":"stable","version":"v1.19.0"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.18.2","date":"2026-05-15T17:25:49Z","type":"stable","version":"v1.18.2"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.18.1","date":"2026-04-30T14:30:16Z","type":"stable","version":"v1.18.1"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.18.0","date":"2026-04-26T18:29:38Z","type":"stable","version":"v1.18.0"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.17.1","date":"2026-03-31T21:10:27Z","type":"stable","version":"v1.17.1"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.17.0","date":"2026-03-17T23:08:53Z","type":"stable","version":"v1.17.0"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.16.3","date":"2026-03-01T15:49:12Z","type":"stable","version":"v1.16.3"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.16.2","date":"2026-02-22T17:31:41Z","type":"stable","version":"v1.16.2"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.16.1","date":"2026-02-07T18:58:24Z","type":"stable","version":"v1.16.1"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.16.0","date":"2026-01-31T15:38:51Z","type":"stable","version":"v1.16.0"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.15.6","date":"2025-12-28T16:38:35Z","type":"stable","version":"v1.15.6"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.15.5","date":"2025-12-07T12:24:21Z","type":"stable","version":"v1.15.5"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.15.4","date":"2025-11-21T01:21:03Z","type":"stable","version":"v1.15.4"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.15.3","date":"2025-10-21T19:56:55Z","type":"stable","version":"v1.15.3"},{"url":"https://github.com/bluenviron/mediamtx/releases/tag/v1.15.2","date":"2025-10-13T17:03:15Z","type":"stable","version":"v1.15.2"}]` |
| reliability.sla_pct | 99.9 | - |
| reliability.status_page | yes | - |
| security.gdpr | yes | - |
| security.trust_center | - | https://github.com/trust-center |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=nixpkgs&package_name=mediamtx&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Live Streaming)

| Capability | Castr | MediaMTX |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Architecture model | Browser cloud studio | Open source local encoder |
| Simulcast multi destination rtmp output hub | ✓ | ✓ |
| Remote guest browser invites for interviews webrtc | - | - |
| Custom lower thirds graphics and brand overlays | - | - |
| ISO track recording for isolated guest audio video | - | - |
| Hardware encoding acceleration nvenc quicksync | - | - |
| Srt secure reliable transport protocol support | ✓ | ✓ |
| Multi network unified aggregated chat feed | - | - |
| Chroma key green screen and virtual backgrounds | - | - |
| Ndi network device interface feed ingestion | - | - |
| SOC2 type ii | - | - |
| Gpl or permissive oss license | - | ✓ |
| Pricing model | Flat monthly subscription | Free open source |

*Source: Vioscale. Generated 2026-09-01T16:51:30.818Z. "-" = undocumented, not absent.*