Nebula vs Wesher
A side-by-side comparison of two self-hosted remote access & vpn options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Nebula | Wesher |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 95 · Excellent | 13 · At risk |
| Category | Remote Access & VPN | Remote Access & VPN |
| License | MIT | Apache-2.0 |
| Language | Go | Go |
| Setup difficulty | Hard | Medium |
| Min. RAM | 64 MB | 64 MB |
| Deployment | binary, bare-metal | binary, source |
| GitHub stars | ★ 18,381 | ★ 988 |
| First released | 2019 | 2019 |
| Replaces | Tailscale | Tailscale, ZeroTier |
What are Nebula and Wesher?
Nebula
Nebula is an open-source overlay networking tool built for scalability and security, originally created at Slack. It uses a certificate-based model to connect hosts across the internet.
- Certificate-based identity
- Scales to large fleets
- Built-in firewall rules
- Cross-platform binaries
Wesher
Wesher is an open-source tool that creates and manages an encrypted WireGuard mesh overlay network between cluster nodes. It handles key exchange and peer discovery for self-hosted private networking.
- Automatic mesh networking
- Gossip-based discovery
- WireGuard encryption
- Zero central server
Nebula vs Wesher: key differences
Both projects are written in Go. Licensing differs — MIT for Nebula versus Apache-2.0 for Wesher. Nebula has the considerably larger community, at 18,381 GitHub stars versus 988.
Why pick each one
Choose Nebula if…
- Proven at Slack scale
- Lightweight and fast
- Fine-grained host firewalling
Watch out for
- Manual certificate management
- No management GUI
Choose Wesher if…
- Released under the Apache-2.0 license
- Written in Go
- Tiny footprint — runs in 64 MB RAM
Frequently asked questions
Is Nebula or Wesher better?
Neither is universally better. Nebula has the larger community, while Wesher is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Nebula and Wesher free and open-source?
Yes. Nebula is licensed under MIT and Wesher under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Nebula and Wesher with Docker?
Nebula: check the project docs for container support. Wesher: check the project docs for container support.