head to head · open source
Hoppscotch vs SafeLine
Hoppscotch has 80,331 GitHub stars, 6,110 forks, 820 open issues and last shipped 2 days ago. SafeLine has 22,606 stars, 1,533 forks, 69 open issues and last shipped 8 days ago. Hoppscotch leads on adoption by 255% (80,331 vs 22,606 stars). Hoppscotch is written in TypeScript under MIT; SafeLine is written in Go under GPL-3.0. Hoppscotch has attracted 8% as many forks as stars, SafeLine 7%. Hoppscotch 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
| Hoppscotch | SafeLine | |
|---|---|---|
| GitHub stars | ★ 80K | ★ 23K |
| License | MIT | GPL-3.0 |
| Written in | TypeScript | Go |
| Last push | 2026-09-16 | 2026-09-10 |
| Forks | ⑂ 6.1K | ⑂ 1.5K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Hoppscotch if
- You weight community size — 80K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- 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 Hoppscotch
Hoppscotch is an open source API development ecosystem that provides a full featured client for designing, testing, and documenting APIs. It operates as a web based application, desktop app, and CLI tool, supporting offline, on premises, and cloud deployments. Built with TypeScript and licensed under MIT, it serves as a direct open source alternative to proprietary tools like Postman and Insomnia.
read the full Hoppscotch overview →
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 →
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Frequently asked questions
Is Hoppscotch or SafeLine more popular?
Hoppscotch has 80,331 GitHub stars and SafeLine has 22,606. Hoppscotch has the larger community by that measure.
Are Hoppscotch and SafeLine free?
Both are open source. Hoppscotch is licensed under MIT and SafeLine under GPL-3.0. Neither carries a licence fee.
What is the difference between Hoppscotch and SafeLine?
Hoppscotch is written in TypeScript 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, Hoppscotch or SafeLine?
Choose Hoppscotch if you want the larger community (80,331 stars) or its MIT licence terms. Choose SafeLine if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.