head to head · open source
goaccess vs Billion Mail
goaccess has 20,930 GitHub stars, 1,193 forks, 449 open issues and last shipped 2 days ago. Billion Mail has 15,611 stars, 1,702 forks, 236 open issues and last shipped 3 months ago. goaccess leads on adoption by 34% (20,930 vs 15,611 stars). goaccess is written in C under MIT; Billion Mail is written in Go under AGPL-3.0. goaccess has attracted 6% as many forks as stars, Billion Mail 11%. goaccess 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
| goaccess | Billion Mail | |
|---|---|---|
| GitHub stars | ★ 21K | ★ 16K |
| License | MIT | AGPL-3.0 |
| Written in | C | Go |
| Last push | 2026-09-16 | 2026-06-11 |
| Forks | ⑂ 1.2K | ⑂ 1.7K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick goaccess if
- You weight community size — 21K stars and counting
- You want the MIT license terms
- Your stack matches C
- You value the larger contributor base for long-term maintenance
pick Billion Mail if
- You want the Billion Mail feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Go
- You evaluated both and Billion Mail fits your workflow better
About goaccess
GoAccess is an open source, real time web log analyzer and interactive viewer written in C and released under the MIT license. It parses web server logs and renders the results either in a terminal on nix systems or through a browser, updating every panel and metric every 200 milliseconds in the terminal output and every second in the HTML output. The project has been developed for roughly thirteen years and lives in the nix command line ecosystem, with a cluster of topics around analytics, Apache, Caddy, dashboards, and command line tooling.
read the full goaccess overview →
About Billion Mail
BillionMail is an open source mail server and email marketing platform written in Go and released under the AGPL 3.0 license. It lives in the self hosted email ecosystem and is described as a solution for newsletters, promotional emails, and transactional messages. The project combines mail server topics such as Postfix, Dovecot, Rspamd, and SMTP with campaign features such as customer management, analytics, templates, and sending control.
read the full Billion Mail overview →
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Frequently asked questions
Is goaccess or Billion Mail more popular?
goaccess has 20,930 GitHub stars and Billion Mail has 15,611. goaccess has the larger community by that measure.
Are goaccess and Billion Mail free?
Both are open source. goaccess is licensed under MIT and Billion Mail under AGPL-3.0. Neither carries a licence fee.
What is the difference between goaccess and Billion Mail?
goaccess is written in C and Billion Mail 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, goaccess or Billion Mail?
Choose goaccess if you want the larger community (20,930 stars) or its MIT licence terms. Choose Billion Mail if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.