head to head · open source
SafeLine vs fusio
SafeLine has 22,638 GitHub stars, 1,535 forks, 69 open issues and last shipped today. fusio has 2,116 stars, 241 forks, 169 open issues and last shipped 14 days ago. SafeLine leads on adoption by 970% (22,638 vs 2,116 stars). SafeLine is written in Go under GPL-3.0; fusio is written in PHP under Apache-2.0. SafeLine has attracted 7% as many forks as stars, fusio 11%. SafeLine was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (api-gateway), 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.
← all 20902 open source comparisons
Side by side
| SafeLine | fusio | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 2.1K |
| License | GPL-3.0 | Apache-2.0 |
| Written in | Go | PHP |
| Last push | 2026-09-20 | 2026-09-06 |
| Forks | ⑂ 1.5K | ⑂ 241 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SafeLine if
- You weight community size — 23K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick fusio if
- You want the fusio feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches PHP
- You evaluated both and fusio fits your workflow better
About SafeLine
SafeLine is a self hosted web application firewall and reverse proxy, written in Go and licensed under GPL 3.0, that filters, monitors, and blocks malicious HTTP/S traffic before it reaches a web application — built for developers, AppSec engineers, and blue teams who want to run edge protection on their own infrastructure.
read the full SafeLine overview →
About fusio
Fusio is a self hosted, open source API management platform and gateway written in PHP that turns internal business logic, legacy databases, and microservices into documented API products for third party developers and autonomous AI agents.
read the full fusio overview →
More in Developer Tools
Related comparisons
More API Development & Testing projects
Compare either of these against the rest of the API Development & Testing field.
Frequently asked questions
Is SafeLine or fusio more popular?
SafeLine has 22,638 GitHub stars and fusio has 2,116. SafeLine has the larger community by that measure.
Are SafeLine and fusio free?
Both are open source. SafeLine is licensed under GPL-3.0 and fusio under Apache-2.0. Neither carries a licence fee.
What is the difference between SafeLine and fusio?
SafeLine is written in Go and fusio 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, SafeLine or fusio?
Choose SafeLine if you want the larger community (22,638 stars) or its GPL-3.0 licence terms. Choose fusio if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.