# Bazel vs webpack

**Leader by vioscaleAI score:** webpack

| Attribute | Bazel | webpack |
|---|---|---|
| **vioscaleAI score** | 61.6 (42% (low)) | 69.9 (78% (high)) |
| activity.commits_last_30d | 100 | 100 |
| adoption.dependent_repos | 3 | 3,177 |
| adoption.github_stars | 25,942 | 65,972 |
| content.faq | `[{"answer":"An open-source build and test system designed to efficiently compile and test projects written in multiple programming languages while supporting builds for different target platforms. It uses intelligent caching and parallel execution to speed up builds and scales to handle large codebases across multiple repositories. It is indexed under CI/CD Tools.","source":"https://bazel.build/","question":"What is Bazel?","confidence":0.6},{"answer":"Bazel is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://bazel.build/","question":"Is Bazel free to use?","confidence":0.6},{"answer":"Bazel supports Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://bazel.build/","question":"What platforms does Bazel support?","confidence":0.6},{"answer":"Yes. Bazel can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://bazel.build/","question":"Can Bazel be self-hosted?","confidence":0.6},{"answer":"Yes. Bazel is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/bazelbuild/bazel","question":"Is Bazel open source?","confidence":0.95}]` | `[{"answer":"An open-source JavaScript bundler that prepares code and assets for production browser delivery. Offers code splitting for on-demand component loading, support for various module formats, preprocessing capabilities via loaders, and optimization to reduce bundle size and improve performance. It is indexed under Bundlers.","source":"https://webpack.js.org","question":"What is webpack?","confidence":0.6},{"answer":"webpack is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"https://webpack.js.org","question":"Is webpack free to use?","confidence":0.6},{"answer":"webpack supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://webpack.js.org","question":"What platforms does webpack support?","confidence":0.6},{"answer":"We have confirmed 4 integrations for webpack, including Gulp, Mocha, Karma and NPM Scripts. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://webpack.js.org","question":"What does webpack integrate with?","confidence":0.6},{"answer":"Yes. webpack is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/webpack/webpack","question":"Is webpack open source?","confidence":0.95}]` |
| deployment.options | `{"hybrid":true,"on_prem":true,"self_hosted":true}` | - |
| description.long | An open-source build and test system designed to efficiently compile and test projects written in multiple programming languages while supporting builds for different target platforms. It uses intelligent caching and parallel execution to speed up builds and scales to handle large codebases across multiple repositories. | A build tool that combines modules and assets into optimized bundles for web applications. It handles JavaScript, CSS, HTML, and other resource types through a plugin-based architecture with support for code splitting and transformation. |
| features.capabilities | `{"caching":true,"hosting":"self","marketplace":true,"open_source":true,"matrix_builds":true,"remote_caching":true,"monorepo_native":true,"polyglot_support":true,"incremental_builds":true,"self_hosted_runners":true,"distributed_remote_execution":true,"hermetic_reproducible_builds":true}` | `{"open_source":true,"source_maps":true,"css_bundling":true,"tree_shaking":true,"code_splitting":true,"dev_server_hmr":true,"hmr_dev_server":true,"native_esm_dev":true,"polyglot_support":true,"incremental_builds":true,"webpack_plugin_compat":true,"tree_shaking_code_splitting":true,"hermetic_reproducible_builds":true}` |
| integrations.count | - | 4 |
| integrations.list | - | `[{"name":"Gulp"},{"name":"Mocha"},{"name":"Karma"},{"name":"NPM Scripts"}]` |
| language.primary | Java | JavaScript |
| license.spdx | Apache-2.0 | MIT |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"mac":true,"linux":true,"windows":true}` | `{"cli":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://bazel.build/","retrievedAt":"2026-10-13T13:55:36.070Z"}` | `{"type":"open_source","summary":"Free and open-source","freeTier":true,"sourceUrl":"https://webpack.js.org","retrievedAt":"2026-08-20T16:35:12.905Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | - |
| release.cadence_days | 4 | 4 |
| release.history | `[{"url":"https://github.com/bazelbuild/bazel/releases/tag/10.0.0rc1","date":"2026-10-07T19:23:46Z","type":"prerelease","version":"10.0.0rc1"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/9.3.0","date":"2026-10-07T16:47:33Z","type":"stable","version":"9.3.0"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/9.3.0rc5","date":"2026-10-06T06:33:14Z","type":"prerelease","version":"9.3.0rc5"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/9.3.0rc4","date":"2026-10-01T00:02:59Z","type":"prerelease","version":"9.3.0rc4"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/8.8.1","date":"2026-09-24T21:21:45Z","type":"stable","version":"8.8.1"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/9.3.0rc3","date":"2026-09-23T18:02:07Z","type":"prerelease","version":"9.3.0rc3"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/8.8.1rc2","date":"2026-09-22T23:33:48Z","type":"prerelease","version":"8.8.1rc2"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/8.8.1rc1","date":"2026-09-22T20:14:08Z","type":"prerelease","version":"8.8.1rc1"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/9.3.0rc2","date":"2026-09-17T23:53:24Z","type":"prerelease","version":"9.3.0rc2"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/9.3.0rc1","date":"2026-09-15T22:14:23Z","type":"prerelease","version":"9.3.0rc1"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/8.8.0","date":"2026-08-31T22:34:10Z","type":"stable","version":"8.8.0"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/8.8.0rc4","date":"2026-08-27T22:41:09Z","type":"prerelease","version":"8.8.0rc4"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/8.8.0rc3","date":"2026-08-25T22:48:54Z","type":"prerelease","version":"8.8.0rc3"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/8.8.0rc2","date":"2026-08-18T21:22:09Z","type":"prerelease","version":"8.8.0rc2"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/8.8.0rc1","date":"2026-08-06T23:58:18Z","type":"prerelease","version":"8.8.0rc1"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/9.2.0","date":"2026-07-13T20:39:01Z","type":"stable","version":"9.2.0"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/9.2.0rc2","date":"2026-07-09T20:29:30Z","type":"prerelease","version":"9.2.0rc2"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/9.2.0rc1","date":"2026-06-25T23:01:04Z","type":"prerelease","version":"9.2.0rc1"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/9.1.1","date":"2026-06-03T21:14:12Z","type":"stable","version":"9.1.1"},{"url":"https://github.com/bazelbuild/bazel/releases/tag/9.1.1rc1","date":"2026-05-29T20:29:47Z","type":"prerelease","version":"9.1.1rc1"}]` | `[{"url":"https://github.com/webpack/webpack/releases/tag/v5.111.1","date":"2026-09-18T11:23:07Z","type":"stable","version":"v5.111.1"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.111.0","date":"2026-09-14T06:11:20Z","type":"stable","version":"v5.111.0"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.110.3","date":"2026-09-01T19:57:07Z","type":"stable","version":"v5.110.3"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.110.2","date":"2026-08-30T14:53:08Z","type":"stable","version":"v5.110.2"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.110.1","date":"2026-08-27T20:01:43Z","type":"stable","version":"v5.110.1"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.110.0","date":"2026-08-27T11:28:05Z","type":"stable","version":"v5.110.0"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.109.2","date":"2026-07-28T18:14:32Z","type":"stable","version":"v5.109.2"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.109.1","date":"2026-07-27T21:58:06Z","type":"stable","version":"v5.109.1"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.109.0","date":"2026-07-23T19:19:31Z","type":"stable","version":"v5.109.0"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.108.4","date":"2026-07-04T18:09:51Z","type":"stable","version":"v5.108.4"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.108.3","date":"2026-06-29T22:00:22Z","type":"stable","version":"v5.108.3"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.108.2","date":"2026-06-29T12:56:26Z","type":"stable","version":"v5.108.2"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.108.1","date":"2026-06-26T13:04:32Z","type":"stable","version":"v5.108.1"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.108.0","date":"2026-06-25T09:40:34Z","type":"stable","version":"v5.108.0"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.107.2","date":"2026-05-25T15:18:32Z","type":"stable","version":"v5.107.2"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.107.1","date":"2026-05-21T14:29:33Z","type":"stable","version":"v5.107.1"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.107.0","date":"2026-05-20T09:40:29Z","type":"stable","version":"v5.107.0"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.106.2","date":"2026-04-15T11:44:13Z","type":"stable","version":"v5.106.2"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.106.1","date":"2026-04-10T10:42:06Z","type":"stable","version":"v5.106.1"},{"url":"https://github.com/webpack/webpack/releases/tag/v5.106.0","date":"2026-04-08T15:11:27Z","type":"stable","version":"v5.106.0"}]` |
| security.disclosure_policy | yes | - |
| security.scorecard | 5.7 | 5.7 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=conda&package_name=bazel&per_page=100","last_12m":0,"max_severity":null}` | `{"count":4,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=webpack&per_page=100","last_12m":2,"max_severity":"CRITICAL"}` |

## Capabilities (Build Tools)

| Capability | Bazel | webpack |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Incremental builds | ✓ | ✓ |
| Remote caching | ✓ | - |
| Distributed remote execution | ✓ | - |
| Monorepo native | ✓ | - |
| Hmr dev server | - | ✓ |
| Tree shaking code splitting | - | ✓ |
| Hermetic reproducible builds | ✓ | ✓ |
| Polyglot support | ✓ | ✓ |
| Open source | ✓ | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T19:17:11.394Z. "-" = undocumented, not absent.*