head to head · open source
reaction vs flamingo-commerce
reaction has 12,400 GitHub stars, 2,169 forks, 96 open issues and last shipped 8 months ago. flamingo-commerce has 598 stars, 96 forks, 31 open issues and last shipped yesterday. reaction leads on adoption by 1,974% (12,400 vs 598 stars). reaction is written in JavaScript under GPL-3.0; flamingo-commerce is written in Go under MIT. reaction has attracted 17% as many forks as stars, flamingo-commerce 16%. flamingo-commerce was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 4 topic tags (commerce, ecommerce, graphql, 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 | flamingo-commerce | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 598 |
| License | GPL-3.0 | MIT |
| Written in | JavaScript | Go |
| Last push | 2026-03-01 | 2026-11-02 |
| Forks | ⑂ 2.2K | ⑂ 96 |
| 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 flamingo-commerce if
- You want the flamingo-commerce feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and flamingo-commerce 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 flamingo-commerce
Flamingo Commerce With "Flamingo Commerce" you get your toolkit for building fast and flexible commerce experience applications. A demoshop using the standalone adapters is online here you can also try the GraphQL support What problems does Flamingo Commerce solve? Modern Architecture: Break monolithic e commerce architecture to allow scaling and maintainability. Modern Architecture: Use it to build commerce for headless commerce solutions Real time commerce: Build personalized experiences without the need to cache rendered pages What are the main design goals of Flamingo Commerce? Performance : We do not want…
read the full flamingo-commerce overview →
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Frequently asked questions
Is reaction or flamingo-commerce more popular?
reaction has 12,400 GitHub stars and flamingo-commerce has 598. reaction has the larger community by that measure.
Are reaction and flamingo-commerce free?
Both are open source. reaction is licensed under GPL-3.0 and flamingo-commerce under MIT. Neither carries a licence fee.
What is the difference between reaction and flamingo-commerce?
reaction is written in JavaScript and flamingo-commerce in Go. 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 flamingo-commerce?
Choose reaction if you want the larger community (12,400 stars) or its GPL-3.0 licence terms. Choose flamingo-commerce if its feature set, stack or MIT licence fits better. Both are self-hostable.