head to head · open source
openapi-generator vs SafeLine
openapi-generator has 26,846 GitHub stars, 7,748 forks, 5,819 open issues and last shipped yesterday. SafeLine has 23,154 stars, 1,592 forks, 69 open issues and last shipped 12 days ago. openapi-generator leads on adoption by 16% (26,846 vs 23,154 stars). openapi-generator is written in Java under Apache-2.0; SafeLine is written in Go under GPL-3.0. openapi-generator has attracted 29% as many forks as stars, SafeLine 7%. openapi-generator 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
| openapi-generator | SafeLine | |
|---|---|---|
| GitHub stars | ★ 27K | ★ 23K |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Java | Go |
| Last push | 2026-11-02 | 2026-10-22 |
| Forks | ⑂ 7.7K | ⑂ 1.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick openapi-generator if
- You weight community size — 27K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick SafeLine if
- You want the SafeLine feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Go
- You evaluated both and SafeLine fits your workflow better
About openapi-generator
OpenAPI Generator Master ( 7.27.0 ): :star::star::star: If you would like to contribute, please refer to guidelines and a list of open tasks. :star::star::star: :bangbang: To migrate from Swagger Codegen to OpenAPI Generator, please refer to the migration guide :bangbang: :notebook with decorative cover: For more information, please refer to the Wiki page and FAQ :notebook with decorative cover: :notebook with decorative cover: The eBook A Beginner's Guide to Code Generation for REST APIs is a good starting point for beginners :notebook with decorative cover: :warning: If the OpenAPI spec, templates or any input…
read the full openapi-generator overview →
About SafeLine
SafeLine Make your web apps secure 🏠 Website 📖 Docs 🔍 Live Demo 🙋♂️ Discord 中文版 🏆 Achievements 👋 INTRODUCTION SafeLine is a self hosted WAF(Web Application Firewall) to protect your web apps from attacks and exploits. A web application firewall helps protect web apps by filtering and monitoring HTTP traffic between a web application and the Internet. It typically protects web apps from attacks such as SQL injection , XSS , code injection , os command injection , CRLF injection , ldap injection , xpath injection , RCE , XXE , SSRF , path traversal , backdoor , bruteforce , http flood , bot abused , among…
read the full SafeLine overview →
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Frequently asked questions
Is openapi-generator or SafeLine more popular?
openapi-generator has 26,846 GitHub stars and SafeLine has 23,154. openapi-generator has the larger community by that measure.
Are openapi-generator and SafeLine free?
Both are open source. openapi-generator is licensed under Apache-2.0 and SafeLine under GPL-3.0. Neither carries a licence fee.
What is the difference between openapi-generator and SafeLine?
openapi-generator is written in Java and SafeLine 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, openapi-generator or SafeLine?
Choose openapi-generator if you want the larger community (26,846 stars) or its Apache-2.0 licence terms. Choose SafeLine if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.