Rollup vs Parcel vs Rspack
A side-by-side look at how actively Rollup, Parcel and Rspack are developed on GitHub — popularity, contributor base, commit activity and how quickly issues and pull requests move.
What the numbers say
- Parcel is the most-starred of the 3, with 44k stars — about 3.4× Rspack's 13k.
- Over the 52 weeks to the snapshot, Rspack recorded the most commits (2.6k), against 12 for Parcel.
- Rspack has closed or merged the most pull requests in its lifetime: 12k.
- Relative to its popularity, Rspack carries the lightest open-issue load: 8.9 open issues per 1,000 stars, versus 22.1 for Rollup.
Head-to-head
Snapshot taken 30 September 2026.
| Metric | Rollup Active | Parcel Active | Rspack Active |
|---|---|---|---|
| Stars | 26k | 44k | 13k |
| Forks | 1.8k | 2.3k | 864 |
| Contributors | 470 | 433 | 316 |
| Commits, last 52 weeks | 326 | 12 | 2.6k |
| Open issues | 582 | 457 | 115 |
| Open pull requests | 28 | 152 | 127 |
| Closed / merged PRs | 2.9k | 3.3k | 12k |
| Watchers | 248 | 446 | 56 |
| Last push | 30 Sep 2026 | 29 Sep 2026 | 30 Sep 2026 |
| Latest release | v4.63.5 (Sep 2026) | v2.16.4 (Feb 2026) | v2.2.8 (Sep 2026) |
| Main language | JavaScript | JavaScript | Rust |
| Licence | Not detected by GitHub | MIT | MIT |
| Created | May 2015 | Aug 2017 | Apr 2022 |
Bold marks the highest value in a row. “Active / Slowing / Dormant” is a simple heuristic from how recently code was pushed and open issues per star — a starting point, not a verdict. Stars measure popularity, not quality.
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