# mypy vs Prettier

**Leader by Vioscale score:** mypy

| Attribute | mypy | Prettier |
|---|---|---|
| **Vioscale score** | 80.4 (22% (low)) | 75.8 (44% (low)) |
| activity.commits_last_30d | 44 | 100 |
| adoption.github_stars | 20,558 | 52,163 |
| adoption.package_downloads_weekly | 48,604,416 | 117,427,495 |
| deployment.options | - | `{"cloud":true,"self_hosted":true}` |
| description.long | Mypy is an optional static type checker for Python that combines the benefits of dynamic and static typing. It enables compile-time type checking with no runtime overhead while allowing gradual migration from dynamic to static typing. | A code formatter that removes original styling and reprints code to conform to a consistent style, supporting multiple programming languages and integrating with most editors. |
| features.capabilities | `{"function":"type_checker","deployment":"cli_local","open_source":"oss","pricing_model":"free","language_scope":"single_language"}` | `{"autofix":true,"function":"formatter","open_source":"oss","config_model":"zero_config","pricing_model":"free","language_scope":"multi_language","editor_integration":true}` |
| integrations.count | - | 7 |
| integrations.list | - | `[{"name":"Emacs"},{"name":"Nova"},{"name":"Sublime Text"},{"name":"Vim"},{"name":"Visual Studio"},{"name":"VS Code"},{"name":"WebStorm"}]` |
| language.primary | Python | JavaScript |
| license.spdx | - | MIT |
| platform.support | - | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://mypy-lang.org","retrievedAt":"2026-08-05T14:11:24.368Z"}` | `{"type":"open_source","summary":"Free and open source","freeTier":true,"sourceUrl":"https://prettier.io","retrievedAt":"2026-08-05T14:12:35.830Z"}` |
| pricing.free_tier | - | yes |
| pricing.model | open_source | commercial |
| pricing.price_level | free | free |
| pricing.transparent | - | yes |
| release.cadence_days | - | 1 |

## Capabilities (Code Quality Tools)

| Capability | mypy | Prettier |
|---|:--:|:--:|
| **Core** |  |  |
| Function | Type checker | Formatter |
| Language scope | Single-language | Multi-language |
| Implementation language | - | - |
| **Capability** |  |  |
| Autofix | - | ✓ |
| **Config** |  |  |
| Config model | - | Zero-config |
| **Extensibility** |  |  |
| Custom rules | - | - |
| **Deployment** |  |  |
| Deployment | CLI-local | - |
| **Delivery** |  |  |
| Editor integration | - | ✓ |
| CI / VCS gating | - | - |
| **Insight** |  |  |
| Code metrics | - | - |
| **Performance** |  |  |
| Incremental / monorepo aware | - | - |
| **Licensing** |  |  |
| Open-source | OSS | OSS |
| **Commercial** |  |  |
| Pricing model | Free | Free |

*Source: Vioscale. Generated 2026-08-07T00:01:24.270Z. "-" = undocumented, not absent.*