head to head · open source
parcel vs mill
parcel has 44,025 GitHub stars, 2,284 forks, 606 open issues and last shipped 12 days ago. mill has 2,792 stars, 447 forks, 272 open issues and last shipped yesterday. parcel leads on adoption by 1,477% (44,025 vs 2,792 stars). parcel is written in JavaScript under MIT; mill is written in Scala under MIT. parcel has attracted 5% as many forks as stars, mill 16%. mill was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (build-tool), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| parcel | mill | |
|---|---|---|
| GitHub stars | ★ 44K | ★ 2.8K |
| License | MIT | MIT |
| Written in | JavaScript | Scala |
| Last push | 2026-09-06 | 2026-09-17 |
| Forks | ⑂ 2.3K | ⑂ 447 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick parcel if
- You weight community size — 44K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick mill if
- You want the mill feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Scala
- You evaluated both and mill fits your workflow better
About parcel
Parcel is a zero configuration build tool for the web, distributed as the parcel package on npm and licensed under MIT. It lives in the JavaScript ecosystem and is written primarily in JavaScript, with its JavaScript compiler implemented in Rust for native performance. The project has been developed for roughly nine years, carries more than 44,000 stars and over 2,200 forks on GitHub, and its documentation is hosted at parceljs.org.
read the full parcel overview →
About mill
Mill build tool. Java Scala Kotlin projects. Lives in JVM ecosystem. Category Developer Tools / Build & Deployment. License MIT. Language Scala. Homepage mill build.org. Stable version 1.1.9. Maven Central artifact com.lihaoyi/mill dist shown. Badge shows stable version and unstable dev version. Repo age 9 years. Last push 2026 09 14T12:22:46Z. Stars 2791. Forks 447. Open issues 272. Contributors not listed. GitHub description repeats tagline. README links current documentation site. README includes quick example.
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Frequently asked questions
Is parcel or mill more popular?
parcel has 44,025 GitHub stars and mill has 2,792. parcel has the larger community by that measure.
Are parcel and mill free?
Both are open source. parcel is licensed under MIT and mill under MIT. Neither carries a licence fee.
What is the difference between parcel and mill?
parcel is written in JavaScript and mill in Scala. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, parcel or mill?
Choose parcel if you want the larger community (44,025 stars) or its MIT licence terms. Choose mill if its feature set, stack or MIT licence fits better. Both are self-hostable.