head to head · open source
reaction vs pay
reaction has 12,400 GitHub stars, 2,169 forks, 96 open issues and last shipped 8 months ago. pay has 5,375 stars, 1,054 forks, 6 open issues and last shipped yesterday. reaction leads on adoption by 131% (12,400 vs 5,375 stars). reaction is written in JavaScript under GPL-3.0; pay is written in PHP under MIT. reaction has attracted 17% as many forks as stars, pay 20%. pay was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | pay | |
|---|---|---|
| GitHub stars | ★ 12K | ★ 5.4K |
| License | GPL-3.0 | MIT |
| Written in | JavaScript | PHP |
| Last push | 2026-03-01 | 2026-11-02 |
| Forks | ⑂ 2.2K | ⑂ 1.1K |
| 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 pay if
- You want the pay feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches PHP
- You evaluated both and pay 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 pay
前言 v3 版与 v2 版在底层有很大的不同，基础架构做了重新的设计，更易扩展，使用起来更方便。 开发了多次支付宝与微信支付后，很自然产生一种反感，惰性又来了，想在网上找相关的轮子，可是一直没有找到一款自己觉得逞心如意的，要么使用起来太难理解，要么文件结构太杂乱，只有自己撸起袖子干了。 欢迎 Star，欢迎 PR！ hyperf 扩展包请 传送至这里 laravel 扩展包请 传送至这里 yii 扩展包请 传送至这里 特点 多租户支持 Swoole 支持 灵活的插件机制 丰富的事件系统 命名不那么乱七八糟 隐藏开发者不需要关注的细节 根据支付宝、微信最新 API 开发而成 高度抽象的类，免去各种拼json与xml的痛苦 文件结构清晰易理解，可以随心所欲添加本项目中没有的支付网关 方法使用更优雅，不必再去研究那些奇怪的的方法名或者类名是做啥用的 内置自动获取微信公共证书方法，再也不用再费劲去考虑第一次获取证书的的问题了 符合 PSR2、PSR3、PSR4、PSR7、PSR11、PSR14、PSR18 等各项标准，你可以各种方便的与你的框架集成 版本计划 详细文档 支持的支付方法 yansongda/pay 100% 兼容 支付宝/微信/银联 所有功能（包括服务商功能），只需通过「插件机制」引入即可。 同时，SDK 直接支持内置了以下插件，详情请查阅文档。 支付宝 电脑支付 手机网站支付 APP 支付 刷卡支付 扫码支付…
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Frequently asked questions
Is reaction or pay more popular?
reaction has 12,400 GitHub stars and pay has 5,375. reaction has the larger community by that measure.
Are reaction and pay free?
Both are open source. reaction is licensed under GPL-3.0 and pay under MIT. Neither carries a licence fee.
What is the difference between reaction and pay?
reaction is written in JavaScript and pay in PHP. 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 pay?
Choose reaction if you want the larger community (12,400 stars) or its GPL-3.0 licence terms. Choose pay if its feature set, stack or MIT licence fits better. Both are self-hostable.