head to head · open source
SafeLine vs open-connector
SafeLine has 22,638 GitHub stars, 1,535 forks, 69 open issues and last shipped today. open-connector has 5,833 stars, 511 forks, 0 open issues and last shipped today. SafeLine leads on adoption by 288% (22,638 vs 5,833 stars). SafeLine is written in Go under GPL-3.0; open-connector is written in TypeScript under Apache-2.0. SafeLine has attracted 7% as many forks as stars, open-connector 9%. 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.
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Side by side
| SafeLine | open-connector | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 5.8K |
| License | GPL-3.0 | Apache-2.0 |
| Written in | Go | TypeScript |
| Last push | 2026-09-20 | 2026-09-20 |
| Forks | ⑂ 1.5K | ⑂ 511 |
| 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 open-connector if
- You want the open-connector 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 open-connector 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 open-connector
OpenConnector is an open source auth gateway that connects more than a thousand SaaS providers to AI agents through a Connector SDK, the oo CLI, MCP, HTTP/OpenAPI, and a Web Console, and it is built for developers and teams wiring durable app access into agent products.
read the full open-connector overview →
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Frequently asked questions
Is SafeLine or open-connector more popular?
SafeLine has 22,638 GitHub stars and open-connector has 5,833. SafeLine has the larger community by that measure.
Are SafeLine and open-connector free?
Both are open source. SafeLine is licensed under GPL-3.0 and open-connector under Apache-2.0. Neither carries a licence fee.
What is the difference between SafeLine and open-connector?
SafeLine is written in Go and open-connector 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, SafeLine or open-connector?
Choose SafeLine if you want the larger community (22,638 stars) or its GPL-3.0 licence terms. Choose open-connector if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.