head to head · open source
BillionMail vs postbot
BillionMail has 16,171 GitHub stars, 1,801 forks, 239 open issues and last shipped 5 months ago. postbot has 1,618 stars, 227 forks, 5 open issues and last shipped 10 days ago. BillionMail leads on adoption by 899% (16,171 vs 1,618 stars). BillionMail is written in Go under AGPL-3.0; postbot is written in TypeScript under Apache-2.0. BillionMail has attracted 11% as many forks as stars, postbot 14%. postbot 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
| BillionMail | postbot | |
|---|---|---|
| GitHub stars | ★ 16K | ★ 1.6K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | Go | TypeScript |
| Last push | 2026-06-11 | 2026-10-24 |
| Forks | ⑂ 1.8K | ⑂ 227 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick BillionMail if
- You weight community size — 16K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick postbot if
- You want the postbot feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and postbot fits your workflow better
About BillionMail
BillionMail 📧 An Open Source MailServer, NewsLetter, Email Marketing Solution for Smarter Campaigns [![][license shield]][license link] [![][docs shield]][docs link] [![][github release shield]][github release link] [![][github stars shield]][github stars link] English 简体中文 日本語 Türkçe What is BillionMail? BillionMail is a future open source Mail server, Email marketing platform designed to help businesses and individuals manage their email campaigns with ease. Whether you're sending newsletters, promotional emails, or transactional messages, this tool will provide full control over your email marketing efforts…
read the full BillionMail overview →
About postbot
PostBot 内容同步助手 v1.3.1 一款开源的多平台内容同步分发生产力工具。 支持将文章、笔记、动态、图片、视频、音频等内容，一键同步发布至主流媒体平台。 正在持续迭代中... [!WARNING] 当前为快速迭代日常开发版，供开源社区贡献者快速协作与迭代。 开发者如需本地开发运行时，请访问稳定版 PostBot v1.1.20。 PostBot 内容同步助手 介绍 🌟 核心特性 📝 专注内容 支持文章、笔记、动态、图片、视频、音频等多内容。 文本内容支持 HTML、Markdown 格式。 🌍 多平台 覆盖微信/微博/今日头条/小红书/知乎/百家号/企鹅号/视频号/抖音/快手/哔哩哔哩（B站）等国内主流媒体平台，可轻松扩展兼容 X（Twitter）、Facebook、Instagram、TikTok、YouTube、LinkedIn 等国际媒体平台。 🚀 一键发布 一次编辑排版、一键同步至多平台自动发布。 可同时将内容自动同步发布至所有已登录的媒体平台。 🔐 安全 区别于其他工具的核心在于本地化操作机制，直接复用浏览器本地登录状态，规避云端存储账号信息的隐私风险，安全安心。 📖 智能阅读器 内置智能网页阅读器，网页内容智能提取。 🎯 平台适配 自动优化内容适配，以满足各平台特性要求。 🆓 免费 浏览器扩展社区版完全开源永久免费，社区版无需付费即可使用全部核心同步发布功能。默认可不依赖任何 AI…
read the full postbot overview →
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Frequently asked questions
Is BillionMail or postbot more popular?
BillionMail has 16,171 GitHub stars and postbot has 1,618. BillionMail has the larger community by that measure.
Are BillionMail and postbot free?
Both are open source. BillionMail is licensed under AGPL-3.0 and postbot under Apache-2.0. Neither carries a licence fee.
What is the difference between BillionMail and postbot?
BillionMail is written in Go and postbot in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, BillionMail or postbot?
Choose BillionMail if you want the larger community (16,171 stars) or its AGPL-3.0 licence terms. Choose postbot if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.