# Checkstyle

- **Canonical URI:** https://www.vioscale.ai/software/checkstyle
- **Category:** Code Quality Tools
- **Homepage:** https://checkstyle.org/
- **Also known as:** checkstyle
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-03T22:35:07.899Z

## Vioscale score

**64.6 / 100**, confidence 27% (low).

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

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 67.1 | 16 | 1073.9 | ✓ |
| github_stars | 74.6 | 5 | 372.9 | ✓ |
| integrations | 22.4 | 8 | 179 | ✓ |
| github_activity | 63.1 | 18 | 1135.8 | ✓ |
| release_cadence | 92.2 | 10 | 922.2 | ✓ |
| security_posture | 0 | 13 | 0 | - |
| package_downloads | 0 | 26 | 0 | - |
| stackoverflow_activity | 0 | 12 | 0 | - |

## About

Development tool that automates checking Java code against coding standards to enforce consistency and help programmers write code that adheres to a specified coding style.

_Independently observed._

## Platform & deployment
- **Deployment:** Self-hosted

## Integrations (5)

_Independently observed._

- Maven
- Ant
- IntelliJ IDE
- Eclipse IDE
- NetBeans IDE

## Capabilities

_The capabilities that matter for Code Quality Tools. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Core** | |
| Function | Static analyzer |
| Language scope | Single-language |
| Implementation language | Java |
| **Capability** | |
| Autofix | ✗ |
| **Config** | |
| Config model | Config file |
| **Extensibility** | |
| Custom rules | ✓ |
| **Deployment** | |
| Deployment | CLI-local |
| **Delivery** | |
| Editor integration | ✓ |
| CI / VCS gating | ✓ |
| **Insight** | |
| Code metrics | ✓ |
| **Performance** | |
| Incremental / monorepo aware | ✗ |
| **Licensing** | |
| Open-source | OSS |
| **Commercial** | |
| Pricing model | Free |

## 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 | 100 | [link](https://github.com/checkstyle/checkstyle/pulse) | 2026-08-03 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 8,986 | [link](https://github.com/checkstyle/checkstyle) | 2026-08-03 | 90% (high) |

### integrations

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| integrations.count | 5 | [link](https://checkstyle.org/) | 2026-08-03 | 60% (medium) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Java | [link](https://github.com/checkstyle/checkstyle) | 2026-08-03 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | LGPL-2.1 | [link](https://github.com/checkstyle/checkstyle) | 2026-08-03 | 95% (high) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 14 | [link](https://github.com/checkstyle/checkstyle/releases) | 2026-08-03 | 70% (medium) |

### reliability

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| reliability.status_page | yes | [link](https://checkstyle.org/status) | 2026-08-03 | 60% (medium) |

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