# v4l2loopback

- **Canonical URI:** https://www.vioscale.ai/software/v4l2loopback
- **Category:** Webcam Streaming Tools
- **Homepage:** https://github.com/umlaeute/v4l2loopback
- **Also known as:** v4l2loopback
- **Profile claimed by vendor:** no
- **Last updated:** 2026-09-08T22:07:38.142Z

## vioscaleAI score

**39.7 / 100**, confidence 23% (low). 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 | 68.4 | 0.026 | 1.8 | ✓ |
| integrations | 0 | 0.079 | 0 | - |
| dependent_projects | 0 | 0.063 | 0 | ✓ |
| dev_activity | 9.5 | 0.094 | 0.9 | ✓ |
| release_cadence | 0 | 0.052 | 0 | - |
| security_posture | 0 | 0.063 | 0 | - |
| package_downloads | 0 | 0.136 | 0 | - |
| security_score | 42 | 0.042 | 1.8 | ✓ |
| community_qa_activity | 0 | 0.063 | 0 | - |

## Pricing

_As of 2026-08-31, [verify at source](https://github.com/pricing). Independently observed._

Open source · Free tier

## About

Creates virtual video devices that applications recognize as regular video sources but receive streams generated or modified by other software. Commonly used to apply effects to video conferencing calls without requiring specialized hardware.

_Independently observed._

## Platform & deployment

- **Platforms:** CLI, Linux
- **Deployment:** Air-gapped, Self-hosted

## Capabilities

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

| Capability | Supported |
|---|:--:|
| **Capabilities** | |
| Architecture model | Driver level hardware utility |
| Virtual camera driver output for zoom teams meet | ✓ |
| AI background removal and blur without green screen | - |
| AI eye contact correction gaze redirection | - |
| Presentation slide overlay picture in picture | - |
| AI audio noise cancellation and echo removal | - |
| Ar face tracking and 3d masking snapchat style | - |
| Multi camera switching and scene management | - |
| Video recording to local mp4 disk | - |
| Nvidia rtx GPU hardware tensor core requirement | - |
| SOC2 type ii | - |
| Gpl or permissive oss license | ✓ |
| Pricing model | Free hardware utility |

## Security & compliance


Known vulnerabilities: 0 (0 in the last 12 months) ([source](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=nixpkgs&package_name=linuxKernel.packages.linux_5_10.v4l2loopback&per_page=100)). A count reflects scale and disclosure, not quality.

## FAQ

### What is v4l2loopback?

Creates virtual video devices that applications recognize as regular video sources but receive streams generated or modified by other software. Commonly used to apply effects to video conferencing calls without requiring specialized hardware. It is indexed under Webcam Streaming Tools.

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

### Is v4l2loopback free to use?

v4l2loopback is open source, so it can be self-hosted and used at no licence cost. It is released under the GPL-2.0 licence. Pricing changes often, so verify at source before relying on it.

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

### What platforms does v4l2loopback support?

v4l2loopback supports Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.

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

### Can v4l2loopback be self-hosted?

Yes. v4l2loopback can be deployed air-gapped and self-hosted, so it does not have to run on the vendor's infrastructure.

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

### Is v4l2loopback open source?

Yes. v4l2loopback is published under the GPL-2.0 licence, a copyleft licence, so check its terms before embedding it in a closed-source product. Licence terms can change between releases, so verify against the repository for the version you intend to use.

_Source: [https://github.com/umlaeute/v4l2loopback](https://github.com/umlaeute/v4l2loopback)._


## Facts

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

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 1 | [link](https://github.com/umlaeute/v4l2loopback/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%2Fumlaeute%2Fv4l2loopback) | 2026-09-08 | 85% (high) |
| adoption.github_stars | 4,235 | [link](https://github.com/umlaeute/v4l2loopback) | 2026-09-08 | 90% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | C | [link](https://github.com/umlaeute/v4l2loopback) | 2026-09-08 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | GPL-2.0 | [link](https://github.com/umlaeute/v4l2loopback) | 2026-09-08 | 95% (high) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.scorecard | 4.2 | [link](https://api.securityscorecards.dev/projects/github.com/umlaeute/v4l2loopback) | 2026-09-08 | 90% (high) |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=nixpkgs&package_name=linuxKernel.packages.linux_5_10.v4l2loopback&per_page=100","last_12m":0,"max_severity":null}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=nixpkgs&package_name=linuxKernel.packages.linux_5_10.v4l2loopback&per_page=100) | 2026-09-08 | 90% (high) |
| security.trust_center | https://github.com/security/advanced-security/secret-protection | [link](https://github.com/pricing) | 2026-08-31 | 60% (medium) |

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.model | commercial | [link](https://github.com/umlaeute/v4l2loopback) | 2026-09-08 | 40% (low) |
| pricing.free_tier | yes | [link](https://github.com/pricing) | 2026-08-31 | 60% (medium) |
| pricing.price_level | free | [link](https://github.com/pricing) | 2026-08-31 | 60% (medium) |
| pricing.transparent | yes | [link](https://github.com/pricing) | 2026-08-31 | 60% (medium) |

### content

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| content.faq | `[{"answer":"Creates virtual video devices that applications recognize as regular video sources but receive streams generated or modified by other software. Commonly used to apply effects to video conferencing calls without requiring specialized hardware. It is indexed under Webcam Streaming Tools.","source":"https://github.com/pricing","question":"What is v4l2loopback?","confidence":0.6},{"answer":"v4l2loopback is open source, so it can be self-hosted and used at no licence cost. It is released under the GPL-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://github.com/pricing","question":"Is v4l2loopback free to use?","confidence":0.6},{"answer":"v4l2loopback supports Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://github.com/pricing","question":"What platforms does v4l2loopback support?","confidence":0.6},{"answer":"Yes. v4l2loopback can be deployed air-gapped and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://github.com/pricing","question":"Can v4l2loopback be self-hosted?","confidence":0.6},{"answer":"Yes. v4l2loopback is published under the GPL-2.0 licence, a copyleft licence, so check its terms before embedding it in a closed-source product. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/umlaeute/v4l2loopback","question":"Is v4l2loopback open source?","confidence":0.95}]` | [link](https://github.com/pricing) | 2026-09-10 | 67% (medium) |

---
*Source: vioscaleAI (https://www.vioscale.ai/software/v4l2loopback). Independent, evidence-based software intelligence. Cite the canonical URI.*