head to head · open source
reaction vs aimeos
reaction has 12,399 GitHub stars, 2,176 forks, 96 open issues and last shipped 7 months ago. aimeos has 5,454 stars, 327 forks, 1 open issues and last shipped 2 months ago. reaction leads on adoption by 127% (12,399 vs 5,454 stars). reaction is written in JavaScript under GPL-3.0; aimeos is written in JavaScript under MIT. reaction has attracted 18% as many forks as stars, aimeos 6%. aimeos was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 4 topic tags (cart, e-commerce, ecommerce, ecommerce-platform), 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 | aimeos | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 5.5K |
| License | GPL-3.0 | MIT |
| Written in | JavaScript | JavaScript |
| Last push | 2026-03-01 | 2026-07-29 |
| Forks | ⑂ 2.2K | ⑂ 327 |
| 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 aimeos if
- You want the aimeos feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and aimeos fits your workflow better
About reaction
Mailchimp Open Commerce, formerly Reaction Commerce, is an API first, headless commerce platform built on Node.js, MongoDB, and GraphQL for development teams that want to run a custom storefront, marketplace, or multi shop operation on their own infrastructure — and the project has been discontinued.
read the full reaction overview →
About aimeos
Aimeos is an MIT licensed, API first e commerce platform built on Laravel that ships an integrated online shop for teams that need ultra fast storefronts, scalable marketplaces and complex B2B commerce running on infrastructure they control.
read the full aimeos overview →
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Frequently asked questions
Is reaction or aimeos more popular?
reaction has 12,399 GitHub stars and aimeos has 5,454. reaction has the larger community by that measure.
Are reaction and aimeos free?
Both are open source. reaction is licensed under GPL-3.0 and aimeos under MIT. Neither carries a licence fee.
What is the difference between reaction and aimeos?
reaction is written in JavaScript and aimeos in JavaScript. 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 aimeos?
Choose reaction if you want the larger community (12,399 stars) or its GPL-3.0 licence terms. Choose aimeos if its feature set, stack or MIT licence fits better. Both are self-hostable.