# Puppeteer vs Testing Library

**Leader by Vioscale score:** Puppeteer

| Attribute | Puppeteer | Testing Library |
|---|---|---|
| **Vioscale score** | 68.9 (67% (medium)) | 61.9 (79% (high)) |
| activity.commits_last_30d | 90 | 0 |
| adoption.dependent_repos | 144,056 | 1,412,044 |
| adoption.github_stars | 95,498 | 3,332 |
| adoption.package_downloads_weekly | 12,005,633 | 68,650,035 |
| 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. | Testing Library provides lightweight utilities for testing JavaScript applications, with implementations for React, Angular, Vue, and other frameworks. It emphasizes testing best practices and user-centric testing approaches. |
| features.capabilities | `{"languages":"JavaScript","browser_automation":true}` | `{"mocking":false,"coverage":false,"languages":"JavaScript, TypeScript","assertions":true,"watch_mode":false,"ci_integration":true,"snapshot_testing":false,"browser_automation":false,"parallel_execution":false}` |
| integrations.count | 5 | 3 |
| integrations.list | `[{"name":"Chrome"},{"name":"Firefox"},{"name":"DevTools Protocol"},{"name":"WebDriver BiDi"},{"name":"chrome-devtools-mcp"}]` | `[{"name":"Jest"},{"name":"Cypress"},{"name":"GitHub Actions"}]` |
| language.primary | TypeScript | JavaScript |
| license.spdx | Apache-2.0 | MIT |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://pptr.dev/","retrievedAt":"2026-08-13T23:06:39.390Z"}` | `{"type":"open_source","summary":"Free, open source under MIT license","freeTier":true,"sourceUrl":"https://testing-library.com","retrievedAt":"2026-08-14T11:09:26.659Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 15 |
| 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"}]` | `[{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v10.4.1","date":"2025-07-27T13:23:38Z","type":"stable","version":"v10.4.1"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v10.4.0","date":"2024-07-22T12:18:31Z","type":"stable","version":"v10.4.0"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v10.3.2","date":"2024-07-15T14:16:28Z","type":"stable","version":"v10.3.2"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v10.3.1","date":"2024-07-05T10:58:42Z","type":"stable","version":"v10.3.1"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v10.3.0","date":"2024-07-02T12:15:10Z","type":"stable","version":"v10.3.0"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v10.2.0","date":"2024-06-24T11:46:05Z","type":"stable","version":"v10.2.0"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v10.1.0","date":"2024-04-29T07:47:58Z","type":"stable","version":"v10.1.0"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v10.0.0","date":"2024-04-08T12:33:33Z","type":"stable","version":"v10.0.0"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v10.0.0-alpha.3","date":"2024-04-04T07:35:13Z","type":"prerelease","version":"v10.0.0-alpha.3"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v9.3.4","date":"2024-01-08T20:17:28Z","type":"stable","version":"v9.3.4"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v10.0.0-alpha.2","date":"2023-10-03T09:35:50Z","type":"prerelease","version":"v10.0.0-alpha.2"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v9.3.3","date":"2023-09-17T18:11:38Z","type":"stable","version":"v9.3.3"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v9.3.2","date":"2023-09-17T15:14:57Z","type":"stable","version":"v9.3.2"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v10.0.0-alpha.1","date":"2023-09-10T06:32:20Z","type":"prerelease","version":"v10.0.0-alpha.1"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v8.20.1","date":"2023-06-16T19:50:30Z","type":"stable","version":"v8.20.1"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v9.3.1","date":"2023-06-14T15:00:06Z","type":"stable","version":"v9.3.1"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v9.3.0","date":"2023-05-12T11:55:22Z","type":"stable","version":"v9.3.0"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v9.2.0","date":"2023-03-24T18:47:01Z","type":"stable","version":"v9.2.0"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v9.1.0","date":"2023-03-24T18:08:58Z","type":"stable","version":"v9.1.0"},{"url":"https://github.com/testing-library/dom-testing-library/releases/tag/v9.0.1","date":"2023-03-08T12:16:16Z","type":"stable","version":"v9.0.1"}]` |
| security.scorecard | 7.8 | 4.9 |
| 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=npm&package_name=%40testing-library%2Fdom&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Testing Tools)

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

*Source: Vioscale. Generated 2026-09-01T17:21:24.119Z. "-" = undocumented, not absent.*