head to head · open source
Billion Mail vs starrocks
Billion Mail has 16,171 GitHub stars, 1,801 forks, 236 open issues and last shipped 5 months ago. starrocks has 12,225 stars, 2,646 forks, 1,443 open issues and last shipped yesterday. Billion Mail leads on adoption by 32% (16,171 vs 12,225 stars). Billion Mail is written in Go under AGPL-3.0; starrocks is written in Java under Apache-2.0. Billion Mail has attracted 11% as many forks as stars, starrocks 22%. starrocks 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
| Billion Mail | starrocks | |
|---|---|---|
| GitHub stars | ★ 16K | ★ 12K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | Go | Java |
| Last push | 2026-06-11 | 2026-11-02 |
| Forks | ⑂ 1.8K | ⑂ 2.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Billion Mail 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 starrocks if
- You want the starrocks feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and starrocks fits your workflow better
About Billion Mail
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 Billion Mail overview →
About starrocks
Download Docs Benchmarks Demo StarRocks is the world's fastest open query engine for sub second, ad hoc analytics both on and off the data lakehouse. With average query performance 3x faster than other popular alternatives, StarRocks is a query engine that eliminates the need for denormalization and adapts to your use cases, without having to move your data or rewrite SQL. A Linux Foundation project. Learn more 👉🏻 What Is StarRocks: Features and Use Cases, Join StarRocks Summit 2025! Features 🚀 Native vectorized SQL engine: StarRocks adopts vectorization technology to make full use of the parallel computing…
read the full starrocks overview →
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Frequently asked questions
Is Billion Mail or starrocks more popular?
Billion Mail has 16,171 GitHub stars and starrocks has 12,225. Billion Mail has the larger community by that measure.
Are Billion Mail and starrocks free?
Both are open source. Billion Mail is licensed under AGPL-3.0 and starrocks under Apache-2.0. Neither carries a licence fee.
What is the difference between Billion Mail and starrocks?
Billion Mail is written in Go and starrocks in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Billion Mail or starrocks?
Choose Billion Mail if you want the larger community (16,171 stars) or its AGPL-3.0 licence terms. Choose starrocks if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.