# SRS

- **Canonical URI:** https://www.vioscale.ai/software/srs
- **Category:** Live Streaming
- **Homepage:** https://ossrs.io
- **Also known as:** srs
- **Profile claimed by vendor:** no
- **Last updated:** 2026-09-08T21:49:04.677Z

## vioscaleAI score

**47.7 / 100**, confidence 60% (medium). Computed 2026-09-08.

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 45.8 | 0.07 | 3.2 | ✓ |
| repo_stars | 84.2 | 0.026 | 2.2 | ✓ |
| integrations | 0 | 0.079 | 0 | - |
| dependent_projects | 0 | 0.063 | 0 | ✓ |
| dev_activity | 42.9 | 0.094 | 4 | ✓ |
| release_cadence | 83.3 | 0.052 | 4.3 | ✓ |
| security_posture | 0 | 0.063 | 0 | - |
| package_downloads | 0 | 0.136 | 0 | - |
| security_score | 62 | 0.042 | 2.6 | ✓ |
| community_qa_activity | 0 | 0.063 | 0 | - |

## Pricing

_As of 2026-09-01, [verify at source](https://ossrs.io). Independently observed._

Free · Free tier

> Free and open-source

## About

A high-performance server that handles multiple streaming protocols and codec formats, supporting Linux and macOS across various processor architectures.

_Independently observed._

## Platform & deployment

- **Platforms:** CLI, macOS, Linux
- **Deployment:** On-premise, Self-hosted

## Capabilities

_The capabilities that matter for Live Streaming. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Capabilities** | |
| Architecture model | - |
| 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 | Free open source |

## Release history

| Version | Date | Type |
|---|---|---|
| [v7.0-d0](https://github.com/ossrs/srs/releases/tag/v7.0-d0) | 2026-08-12 | prerelease |
| [v6.0-r1](https://github.com/ossrs/srs/releases/tag/v6.0-r1) | 2026-08-12 | stable |
| [v6.0-r0](https://github.com/ossrs/srs/releases/tag/v6.0-r0) | 2025-12-03 | stable |
| [v6.0-b3](https://github.com/ossrs/srs/releases/tag/v6.0-b3) | 2025-11-03 | stable |
| [v6.0-b2](https://github.com/ossrs/srs/releases/tag/v6.0-b2) | 2025-10-16 | stable |
| [v6.0-b1](https://github.com/ossrs/srs/releases/tag/v6.0-b1) | 2025-09-16 | stable |
| [v6.0-b0](https://github.com/ossrs/srs/releases/tag/v6.0-b0) | 2025-08-12 | stable |
| [v6.0-a2](https://github.com/ossrs/srs/releases/tag/v6.0-a2) | 2025-05-04 | prerelease |
| [v6.0-a1](https://github.com/ossrs/srs/releases/tag/v6.0-a1) | 2024-09-01 | prerelease |
| [v6.0-a0](https://github.com/ossrs/srs/releases/tag/v6.0-a0) | 2024-07-27 | prerelease |
| [v6.0-d6](https://github.com/ossrs/srs/releases/tag/v6.0-d6) | 2024-07-04 | prerelease |
| [v6.0-d5](https://github.com/ossrs/srs/releases/tag/v6.0-d5) | 2024-06-15 | prerelease |
| [v5.0-r3](https://github.com/ossrs/srs/releases/tag/v5.0-r3) | 2024-06-15 | stable |
| [v5.0-r2](https://github.com/ossrs/srs/releases/tag/v5.0-r2) | 2024-04-03 | stable |
| [v6.0-d4](https://github.com/ossrs/srs/releases/tag/v6.0-d4) | 2024-02-15 | prerelease |

_… and 5 earlier release(s)._

## Security & compliance


Known vulnerabilities: 0 (0 in the last 12 months) ([source](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fossrs%2Fsrs&per_page=100)). A count reflects scale and disclosure, not quality.

## FAQ

### What is SRS?

A high-performance server that handles multiple streaming protocols and codec formats, supporting Linux and macOS across various processor architectures. It is indexed under Live Streaming.

_Source: [https://ossrs.io](https://ossrs.io)._

### Is SRS free?

SRS offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.

_Source: [https://ossrs.io](https://ossrs.io)._

### What platforms does SRS support?

SRS supports macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.

_Source: [https://ossrs.io](https://ossrs.io)._

### Can SRS be self-hosted?

Yes. SRS can be deployed on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.

_Source: [https://ossrs.io](https://ossrs.io)._

### Is SRS open source?

Yes. SRS is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.

_Source: [https://github.com/ossrs/srs](https://github.com/ossrs/srs)._


## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://ossrs.io) | 2026-09-01 | 60% (medium) |
| pricing.model | free | [link](https://ossrs.io) | 2026-09-01 | 60% (medium) |
| pricing.price_level | free | [link](https://ossrs.io) | 2026-09-01 | 60% (medium) |
| pricing.transparent | yes | [link](https://ossrs.io) | 2026-09-01 | 60% (medium) |

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 22 | [link](https://github.com/ossrs/srs/pulse) | 2026-09-08 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.dependent_repos | 0 | [link](https://packages.ecosyste.ms/api/v1/packages/lookup?repository_url=https%3A%2F%2Fgithub.com%2Fossrs%2Fsrs) | 2026-09-08 | 85% (high) |
| adoption.github_stars | 29,216 | [link](https://github.com/ossrs/srs) | 2026-09-08 | 90% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | C++ | [link](https://github.com/ossrs/srs) | 2026-09-08 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | MIT | [link](https://github.com/ossrs/srs) | 2026-09-08 | 95% (high) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 30 | [link](https://github.com/ossrs/srs/releases) | 2026-09-08 | 70% (medium) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.scorecard | 6.2 | [link](https://api.securityscorecards.dev/projects/github.com/ossrs/srs) | 2026-09-08 | 90% (high) |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fossrs%2Fsrs&per_page=100","last_12m":0,"max_severity":null}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fossrs%2Fsrs&per_page=100) | 2026-09-08 | 90% (high) |

### content

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| content.faq | `[{"answer":"A high-performance server that handles multiple streaming protocols and codec formats, supporting Linux and macOS across various processor architectures. It is indexed under Live Streaming.","source":"https://ossrs.io","question":"What is SRS?","confidence":0.6},{"answer":"SRS offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://ossrs.io","question":"Is SRS free?","confidence":0.6},{"answer":"SRS supports macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://ossrs.io","question":"What platforms does SRS support?","confidence":0.6},{"answer":"Yes. SRS can be deployed on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://ossrs.io","question":"Can SRS be self-hosted?","confidence":0.6},{"answer":"Yes. SRS is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/ossrs/srs","question":"Is SRS open source?","confidence":0.95}]` | [link](https://ossrs.io) | 2026-09-10 | 67% (medium) |

---
*Source: vioscaleAI (https://www.vioscale.ai/software/srs). Independent, evidence-based software intelligence. Cite the canonical URI.*