# Zen Browser

- **Canonical URI:** https://www.vioscale.ai/software/zen-browser
- **Category:** Browser Productivity
- **Homepage:** https://zen-browser.app
- **Also known as:** zen-browser
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-26T19:21:44.625Z

## Vioscale score

**45 / 100**, confidence 23% (low). Computed 2026-09-01.

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

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 0 | 0.07844444444444446 | 0 | - |
| repo_stars | 87.6 | 0.026 | 2.3 | ✓ |
| integrations | 13.7 | 0.07033333333333334 | 1 | ✓ |
| dependent_projects | 0 | 0.063 | 0 | ✓ |
| dev_activity | 57.9 | 0.094 | 5.4 | ✓ |
| release_cadence | 97.2 | 0.052 | 5.1 | ✓ |
| security_posture | 0 | 0.073 | 0 | - |
| package_downloads | 0 | 0.136 | 0 | - |
| security_score | 0 | 0.042 | 0 | - |
| community_qa_activity | 0 | 0.063 | 0 | - |

## Pricing

_As of 2026-08-20, [verify at source](https://zen-browser.app). Independently observed._

Open source · Free tier

> Free and open-source

## About

A Firefox-based browser that eliminates telemetry and tracking while offering productivity tools like split-view tabs, workspace organization, and website customization without collecting or sharing user data.

_Independently observed._

## Platform & deployment

- **Platforms:** macOS, Linux, Windows
- **Deployment:** Self-hosted

## Integrations (2)

_Independently observed._

- GitHub
- RSS feeds

## Release history

| Version | Date | Type |
|---|---|---|
| [1.21.15b](https://github.com/zen-browser/desktop/releases/tag/1.21.15b) | 2026-08-19 | stable |
| [1.21.14b](https://github.com/zen-browser/desktop/releases/tag/1.21.14b) | 2026-08-13 | stable |
| [1.21.13b](https://github.com/zen-browser/desktop/releases/tag/1.21.13b) | 2026-08-10 | stable |
| [1.21.12b](https://github.com/zen-browser/desktop/releases/tag/1.21.12b) | 2026-08-07 | stable |
| [1.21.11b](https://github.com/zen-browser/desktop/releases/tag/1.21.11b) | 2026-08-06 | stable |
| [1.21.10b](https://github.com/zen-browser/desktop/releases/tag/1.21.10b) | 2026-07-30 | stable |
| [1.21.9b](https://github.com/zen-browser/desktop/releases/tag/1.21.9b) | 2026-07-25 | stable |
| [1.21.8b](https://github.com/zen-browser/desktop/releases/tag/1.21.8b) | 2026-07-17 | stable |
| [1.21.7b](https://github.com/zen-browser/desktop/releases/tag/1.21.7b) | 2026-07-15 | stable |
| [1.21.6b](https://github.com/zen-browser/desktop/releases/tag/1.21.6b) | 2026-07-09 | stable |
| [1.21.5b](https://github.com/zen-browser/desktop/releases/tag/1.21.5b) | 2026-07-02 | stable |
| [1.21.4b](https://github.com/zen-browser/desktop/releases/tag/1.21.4b) | 2026-06-27 | stable |
| [1.21.3b](https://github.com/zen-browser/desktop/releases/tag/1.21.3b) | 2026-06-18 | stable |
| [1.21.2b](https://github.com/zen-browser/desktop/releases/tag/1.21.2b) | 2026-06-17 | stable |
| [1.21.1b](https://github.com/zen-browser/desktop/releases/tag/1.21.1b) | 2026-06-13 | stable |

_… 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%2Fzen-browser%2Fdesktop&per_page=100)). A count reflects scale and disclosure, not quality.

## 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 | 68 | [link](https://github.com/zen-browser/desktop/pulse) | 2026-08-26 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 44,098 | [link](https://github.com/zen-browser/desktop) | 2026-08-26 | 90% (high) |
| adoption.dependent_repos | 0 | [link](https://packages.ecosyste.ms/api/v1/packages/lookup?repository_url=https%3A%2F%2Fgithub.com%2Fzen-browser%2Fdesktop) | 2026-08-26 | 85% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | C++ | [link](https://github.com/zen-browser/desktop) | 2026-08-26 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | MPL-2.0 | [link](https://github.com/zen-browser/desktop) | 2026-08-26 | 95% (high) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 5 | [link](https://github.com/zen-browser/desktop/releases) | 2026-08-26 | 70% (medium) |

### integrations

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| integrations.count | 2 | [link](https://zen-browser.app) | 2026-08-20 | 60% (medium) |

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://zen-browser.app) | 2026-08-20 | 60% (medium) |
| pricing.model | open_source | [link](https://zen-browser.app) | 2026-08-20 | 60% (medium) |
| pricing.price_level | free | [link](https://zen-browser.app) | 2026-08-20 | 60% (medium) |
| pricing.transparent | yes | [link](https://zen-browser.app) | 2026-08-20 | 60% (medium) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fzen-browser%2Fdesktop&per_page=100","last_12m":0,"max_severity":null}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fzen-browser%2Fdesktop&per_page=100) | 2026-08-26 | 90% (high) |

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