# Puppeteer vs unittest

**Leader by Vioscale score:** Puppeteer

| Attribute | Puppeteer | unittest |
|---|---|---|
| **Vioscale score** | 67 (67% (medium)) | 59.1 (36% (low)) |
| activity.commits_last_30d | 90 | 100 |
| adoption.dependent_repos | 144,056 | 111 |
| adoption.github_stars | 95,498 | 74,928 |
| adoption.package_downloads_weekly | 12,005,633 | - |
| deployment.options | `{"self_hosted":true}` | - |
| description.long | Puppeteer provides programmatic control over browser instances, enabling automated navigation, interaction, and inspection of web pages through a high-level API. It supports both Chrome and Firefox and runs in headless mode by default. | Automates unit test execution with support for setup and teardown code, test organization, and independent test management. Includes test discovery and can be integrated with continuous integration systems. |
| features.capabilities | `{"languages":"JavaScript","browser_automation":true}` | `{"mocking":true,"languages":"Python","assertions":true,"test_types":"unit","ci_integration":true}` |
| integrations.count | 5 | - |
| integrations.list | `[{"name":"Chrome"},{"name":"Firefox"},{"name":"DevTools Protocol"},{"name":"WebDriver BiDi"},{"name":"chrome-devtools-mcp"}]` | - |
| language.primary | TypeScript | Python |
| license.spdx | Apache-2.0 | - |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://pptr.dev/","retrievedAt":"2026-08-13T23:06:39.390Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://docs.python.org/3/library/unittest.html","retrievedAt":"2026-08-03T20:57:19.807Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | commercial |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.history | `[{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-v25.9.0","date":"2026-08-25T07:40:50Z","type":"stable","version":"puppeteer-v25.9.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-core-v25.9.0","date":"2026-08-25T07:40:51Z","type":"stable","version":"puppeteer-core-v25.9.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-v25.8.0","date":"2026-08-17T09:12:45Z","type":"stable","version":"puppeteer-v25.8.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-core-v25.8.0","date":"2026-08-17T09:12:46Z","type":"stable","version":"puppeteer-core-v25.8.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/browsers-v3.2.1","date":"2026-08-17T09:12:47Z","type":"stable","version":"browsers-v3.2.1"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-v25.7.0","date":"2026-08-13T18:40:18Z","type":"stable","version":"puppeteer-v25.7.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-core-v25.7.0","date":"2026-08-13T18:40:19Z","type":"stable","version":"puppeteer-core-v25.7.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-v25.6.0","date":"2026-08-11T13:11:24Z","type":"stable","version":"puppeteer-v25.6.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-core-v25.6.0","date":"2026-08-11T13:11:26Z","type":"stable","version":"puppeteer-core-v25.6.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/browsers-v3.2.0","date":"2026-08-11T13:11:27Z","type":"stable","version":"browsers-v3.2.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-v25.5.0","date":"2026-08-04T09:44:48Z","type":"stable","version":"puppeteer-v25.5.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-core-v25.5.0","date":"2026-08-04T09:44:49Z","type":"stable","version":"puppeteer-core-v25.5.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/browsers-v3.1.0","date":"2026-08-04T09:44:50Z","type":"stable","version":"browsers-v3.1.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-v25.4.0","date":"2026-07-27T12:29:39Z","type":"stable","version":"puppeteer-v25.4.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-core-v25.4.0","date":"2026-07-27T12:29:40Z","type":"stable","version":"puppeteer-core-v25.4.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-v25.3.0","date":"2026-07-01T12:30:22Z","type":"stable","version":"puppeteer-v25.3.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-core-v25.3.0","date":"2026-07-01T12:30:23Z","type":"stable","version":"puppeteer-core-v25.3.0"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/browsers-v3.0.6","date":"2026-07-01T12:30:24Z","type":"stable","version":"browsers-v3.0.6"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-v25.2.1","date":"2026-06-24T12:30:41Z","type":"stable","version":"puppeteer-v25.2.1"},{"url":"https://github.com/puppeteer/puppeteer/releases/tag/puppeteer-core-v25.2.1","date":"2026-06-24T12:30:42Z","type":"stable","version":"puppeteer-core-v25.2.1"}]` | - |
| security.scorecard | 7.8 | 7.8 |
| security.vulnerabilities | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=puppeteer&per_page=100","last_12m":0,"max_severity":"MODERATE"}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=nuget&package_name=python&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Testing Tools)

| Capability | Puppeteer | unittest |
|---|:--:|:--:|
| **Core** |  |  |
| Test types | - | Unit |
| Browser automation | ✓ | - |
| Built-in assertion library | - | ✓ |
| Languages | JavaScript | Python |
| **Isolation** |  |  |
| Mocking / stubbing | - | ✓ |
| **Techniques** |  |  |
| Snapshot testing | - | - |
| **Performance** |  |  |
| Parallel execution | - | - |
| **Insight** |  |  |
| Code coverage | - | - |
| **DX** |  |  |
| Watch mode | - | - |
| **Ops** |  |  |
| CI integration | - | ✓ |

*Source: Vioscale. Generated 2026-09-01T17:50:42.933Z. "-" = undocumented, not absent.*