head to head · open source
SafeLine vs Tailcall
SafeLine has 22,606 GitHub stars, 1,533 forks, 69 open issues and last shipped 8 days ago. Tailcall has 7,632 stars, 1,464 forks, 45 open issues and last shipped yesterday. SafeLine leads on adoption by 196% (22,606 vs 7,632 stars). SafeLine is written in Go under GPL-3.0; Tailcall is written in Rust under Apache-2.0. SafeLine has attracted 7% as many forks as stars, Tailcall 19%. Tailcall 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.
← all 8884 open source comparisons
Side by side
| SafeLine | Tailcall | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 7.6K |
| License | GPL-3.0 | Apache-2.0 |
| Written in | Go | Rust |
| Last push | 2026-09-10 | 2026-09-17 |
| Forks | ⑂ 1.5K | ⑂ 1.5K |
| 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 Tailcall if
- You want the Tailcall feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and Tailcall 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 Tailcall
Tailcall is an Apache 2.0 licensed, Rust based developer tool listed in this registry whose repository (tailcallhq/forgecode) and README present it as Forge, an AI enhanced terminal development environment: a command line coding agent that works against Claude, GPT, O Series, Grok, Deepseek, Gemini and, per its own description, more than 300 other models.
read the full Tailcall 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 Tailcall more popular?
SafeLine has 22,606 GitHub stars and Tailcall has 7,632. SafeLine has the larger community by that measure.
Are SafeLine and Tailcall free?
Both are open source. SafeLine is licensed under GPL-3.0 and Tailcall under Apache-2.0. Neither carries a licence fee.
What is the difference between SafeLine and Tailcall?
SafeLine is written in Go and Tailcall in Rust. 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 Tailcall?
Choose SafeLine if you want the larger community (22,606 stars) or its GPL-3.0 licence terms. Choose Tailcall if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.