head to head · open source
reaction vs Solidus
reaction has 12,400 GitHub stars, 2,169 forks, 96 open issues and last shipped 8 months ago. Solidus has 5,348 stars, 1,405 forks, 92 open issues and last shipped 5 days ago. reaction leads on adoption by 132% (12,400 vs 5,348 stars). reaction is written in JavaScript under GPL-3.0; Solidus is written in Ruby under BSD-3-Clause. reaction has attracted 17% as many forks as stars, Solidus 26%. Solidus was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (ecommerce, ecommerce-platform, hacktoberfest), 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
| reaction | Solidus | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 5.3K |
| License | GPL-3.0 | BSD-3-Clause |
| Written in | JavaScript | Ruby |
| Last push | 2026-03-01 | 2026-10-29 |
| Forks | ⑂ 2.2K | ⑂ 1.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick reaction if
- You weight community size — 12K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick Solidus if
- You want the Solidus feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches Ruby
- You evaluated both and Solidus fits your workflow better
About reaction
Mailchimp Open Commerce (formerly Reaction Commerce) Open Commerce Website Twitter Documentation Discord Discussions Mailchimp Open Commerce is an API first, headless commerce platform built using Node.js, MongoDB, and GraphQL. It plays nicely with npm, Docker and Kubernetes. Features Fast Returns data in split seconds, and faster queries mean faster web pages Proven Open Commerce fuels sites doing 10's of thousands of orders per day with 100's of thousands of products Composable A flexible plugin system allows you to pick and choose which integrations work best for you Multi tenant Host multiple shops in the…
read the full reaction overview →
About Solidus
Solidus A free, open source e commerce platform that gives you complete control over your store. Visit our website : Read our Community Guidelines : View the project roadmap : Read our guides : Join our Slack : Solidus Security : mailing list Table of Contents Supporting Solidus Summary Demo Getting Started Installation Options Performance Developing Solidus Contributing Supporting Solidus As a community driven project, Solidus relies on funds and time donated by developers and stakeholders who use Solidus for their businesses. If you'd like to help Solidus keep growing, please consider: Become a backer or…
read the full Solidus overview →
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Frequently asked questions
Is reaction or Solidus more popular?
reaction has 12,400 GitHub stars and Solidus has 5,348. reaction has the larger community by that measure.
Are reaction and Solidus free?
Both are open source. reaction is licensed under GPL-3.0 and Solidus under BSD-3-Clause. Neither carries a licence fee.
What is the difference between reaction and Solidus?
reaction is written in JavaScript and Solidus in Ruby. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, reaction or Solidus?
Choose reaction if you want the larger community (12,400 stars) or its GPL-3.0 licence terms. Choose Solidus if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.