# WireGuard: Free Open Source Alternative to Appgate, Cisco Secure Access, Proton VPN

Canonical: https://caniforkit.com/fork/wireguard
Last updated: 2026-11-07

WireGuard (Open Source, Open Source) replaces Appgate, Cisco Secure Access, Proton VPN, Twingate. VPN protocol that runs inside the Linux kernel, using public-key cryptography to create encrypted tunnels across UDP with minimal configuration.

## Tool Specifications
- **Tool Name**: WireGuard
- **Type**: Open Source Project
- **License**: Open Source
- **Official Website**: https://www.wireguard.com/
- **GitHub Repository**: https://github.com/WireGuard/wireguard-tools
- **GitHub Stars**: ★ 739
- **Runs On**: Local
- **Maintenance Status**: nov 2026
- **Platforms**: desktop, cross-platform, one-click install
- **Data Storage**: All application data lives locally on your own machine.
- **Installation**: Clone https://github.com/WireGuard/wireguard-tools or deploy with Docker Compose
- **Setup Requirements**: Download the native package or installer for your operating system.
- **The Catch / Limitation**: Community-driven open source project without dedicated enterprise SLAs.

## Paid SaaS Applications Replaced (5)
Replacing these paid tools with WireGuard saves up to $30/mo ($360/yr) in software subscriptions:

| Replaced Software | Category | SaaS Price | Comparison Guide |
| --- | --- | --- | --- |
| [Appgate](https://caniforkit.com/appgate) | [security](https://caniforkit.com/category/security) | $6/mo | [Compare Appgate vs WireGuard](https://caniforkit.com/vs/appgate-vs-wireguard) |
| [Cisco Secure Access](https://caniforkit.com/cisco-secure-access) | [security](https://caniforkit.com/category/security) | $6/mo | [Compare Cisco Secure Access vs WireGuard](https://caniforkit.com/vs/cisco-secure-access-vs-wireguard) |
| [Proton VPN](https://caniforkit.com/proton-vpn) | [security](https://caniforkit.com/category/security) | $6/mo | [Compare Proton VPN vs WireGuard](https://caniforkit.com/vs/proton-vpn-vs-wireguard) |
| [Twingate](https://caniforkit.com/twingate) | [security](https://caniforkit.com/category/security) | $6/mo | [Compare Twingate vs WireGuard](https://caniforkit.com/vs/twingate-vs-wireguard) |
| [Zerotier](https://caniforkit.com/zerotier) | [security](https://caniforkit.com/category/security) | $6/mo | [Compare Zerotier vs WireGuard](https://caniforkit.com/vs/zerotier-vs-wireguard) |

## Frequently Asked Questions

### Is WireGuard free and open source?
WireGuard is an open source tool licensed under Open Source that runs on local. VPN protocol that runs inside the Linux kernel, using public-key cryptography to create encrypted tunnels across UDP with minimal configuration.

### What is the trade-off or limitation of using WireGuard?
Community-driven open source project without dedicated enterprise SLAs.

## Related

- [Self-Hosted Open Source Directory](https://caniforkit.com/self-hosted)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Software Categories Directory](https://caniforkit.com/categories)
- [Homepage](https://caniforkit.com)