# Parcel vs Rollup

| Attribute | Parcel | Rollup |
|---|---|---|
| **Vioscale score** | 36.6 (26% (low)) | 60.1 (28% (low)) |
| activity.commits_last_30d | 0 | 25 |
| adoption.dependent_repos | - | 1,133,301 |
| adoption.github_stars | 44,019 | 26,306 |
| description.long | A build tool that automatically handles compilation, optimization, and asset processing for web projects with extensive built-in support for HTML, CSS, JavaScript, images, fonts, and other file types. Includes features like tree-shaking, code transformation for different browser targets, caching, and image optimization. | A module bundler that combines JavaScript files and compiles them using ES module format, supporting output to multiple formats (ES modules, CommonJS, UMD, SystemJS) and optimizing code size through tree-shaking to run efficiently in various environments including browsers and Node.js. |
| integrations.count | 1 | 2 |
| integrations.list | `[{"name":"GraphQL"}]` | `[{"name":"Vite"},{"name":"WMR"}]` |
| language.primary | JavaScript | JavaScript |
| license.spdx | MIT | - |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true}` | `{"cli":true,"web":true}` |
| pricing | `{"plans":[{"free":false,"name":"Gold Sponsor","summary":"$1,000/month","commitment":"monthly","components":[{"kind":"fixed","amount":1000,"period":"month","currency":"USD"}],"contactSales":false},{"free":false,"name":"Silver Sponsor","summary":"$500/month","commitment":"monthly","components":[{"kind":"fixed","amount":500,"period":"month","currency":"USD"}],"contactSales":false},{"free":false,"name":"Bronze Sponsor","summary":"$100/month","commitment":"monthly","components":[{"kind":"fixed","amount":100,"period":"month","currency":"USD"}],"contactSales":false}],"currency":"USD","sourceUrl":"https://parceljs.org","retrievedAt":"2026-08-18T22:03:00.360Z","startingPrice":{"amount":100,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"open_source","sourceUrl":"https://rollupjs.org","retrievedAt":"2026-08-20T16:33:55.692Z"}` |
| pricing.model | commercial | open_source |
| pricing.price_level | high | free |
| pricing.starting_price | `{"amount":100,"currency":"USD"}` | - |
| pricing.transparent | yes | - |
| release.cadence_days | 26 | 6 |
| release.history | `[{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.16.4","date":"2026-02-02T03:22:20Z","type":"stable","version":"v2.16.4"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.16.2","date":"2025-12-06T22:58:25Z","type":"stable","version":"v2.16.2"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.16.1","date":"2025-11-05T01:24:42Z","type":"stable","version":"v2.16.1"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.16.0","date":"2025-09-18T19:44:20Z","type":"stable","version":"v2.16.0"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.15.3","date":"2025-06-20T22:53:28Z","type":"stable","version":"v2.15.3"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.15.2","date":"2025-05-24T23:49:37Z","type":"stable","version":"v2.15.2"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.15.1","date":"2025-05-16T03:49:59Z","type":"stable","version":"v2.15.1"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.15.0","date":"2025-05-12T01:51:29Z","type":"stable","version":"v2.15.0"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.14.4","date":"2025-03-29T20:59:47Z","type":"stable","version":"v2.14.4"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.14.3","date":"2025-03-29T03:56:59Z","type":"stable","version":"v2.14.3"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.14.2","date":"2025-03-23T21:33:06Z","type":"stable","version":"v2.14.2"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.14.1","date":"2025-03-19T06:10:30Z","type":"stable","version":"v2.14.1"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.14.0","date":"2025-03-18T04:31:15Z","type":"stable","version":"v2.14.0"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.13.3","date":"2024-12-16T18:32:49Z","type":"stable","version":"v2.13.3"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.13.2","date":"2024-11-25T18:03:50Z","type":"stable","version":"v2.13.2"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.13.1","date":"2024-11-25T01:51:21Z","type":"stable","version":"v2.13.1"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.13.0","date":"2024-11-12T16:53:40Z","type":"stable","version":"v2.13.0"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.12.0","date":"2024-02-28T15:17:43Z","type":"stable","version":"v2.12.0"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.11.0","date":"2024-01-02T20:44:19Z","type":"stable","version":"v2.11.0"},{"url":"https://github.com/parcel-bundler/parcel/releases/tag/v2.10.3","date":"2023-11-15T02:01:59Z","type":"stable","version":"v2.10.3"}]` | `[{"url":"https://github.com/rollup/rollup/releases/tag/v4.63.0","date":"2026-08-25T13:05:57Z","type":"stable","version":"v4.63.0"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.62.5","date":"2026-08-20T17:03:22Z","type":"stable","version":"v4.62.5"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.62.4","date":"2026-08-01T05:22:37Z","type":"stable","version":"v4.62.4"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.62.3","date":"2026-07-26T15:00:28Z","type":"stable","version":"v4.62.3"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.62.2","date":"2026-06-19T14:57:25Z","type":"stable","version":"v4.62.2"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.62.1","date":"2026-06-19T12:43:26Z","type":"stable","version":"v4.62.1"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.62.0","date":"2026-06-13T08:32:26Z","type":"stable","version":"v4.62.0"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.61.1","date":"2026-06-04T05:23:44Z","type":"stable","version":"v4.61.1"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.61.0","date":"2026-06-01T05:42:19Z","type":"stable","version":"v4.61.0"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.60.4","date":"2026-05-14T17:54:35Z","type":"stable","version":"v4.60.4"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.60.2","date":"2026-04-18T14:00:01Z","type":"stable","version":"v4.60.2"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.60.1","date":"2026-03-30T04:34:16Z","type":"stable","version":"v4.60.1"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.60.0","date":"2026-03-22T06:59:25Z","type":"stable","version":"v4.60.0"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.59.1","date":"2026-03-21T06:47:40Z","type":"stable","version":"v4.59.1"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.59.0","date":"2026-02-22T07:34:08Z","type":"stable","version":"v4.59.0"},{"url":"https://github.com/rollup/rollup/releases/tag/v3.30.0","date":"2026-02-22T06:51:12Z","type":"stable","version":"v3.30.0"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.58.0","date":"2026-02-20T12:46:39Z","type":"stable","version":"v4.58.0"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.57.1","date":"2026-01-30T08:15:09Z","type":"stable","version":"v4.57.1"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.57.0","date":"2026-01-27T07:18:09Z","type":"stable","version":"v4.57.0"},{"url":"https://github.com/rollup/rollup/releases/tag/v4.56.0","date":"2026-01-22T05:39:35Z","type":"stable","version":"v4.56.0"}]` |
| security.scorecard | 2.6 | 5.3 |
| security.vulnerabilities | - | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=rollup&per_page=100","last_12m":1,"max_severity":"HIGH"}` |

## Capabilities (Bundlers)

| Capability | Parcel | Rollup |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Dev server hmr | - | - |
| Native esm dev | - | - |
| Code splitting | - | - |
| Tree shaking | - | - |
| Css bundling | - | - |
| Zero config | - | - |
| Webpack plugin compat | - | - |
| Rollup plugin compat | - | - |
| Monorepo aware | - | - |
| Source maps | - | - |

*Source: Vioscale. Generated 2026-09-01T17:18:42.413Z. "-" = undocumented, not absent.*