Nebula vs ProtonVPN (Infrastructure)
A detailed comparison to help you choose between Nebula and ProtonVPN (Infrastructure).
Quick Verdict
3.9/5
Nebula
0 reviews
3.9/5
ProtonVPN (Infrastructure)
0 reviews
Both Nebula and ProtonVPN (Infrastructure) are equally rated at 3.9/5. Nebula is an open source scalable overlay networking tool built by Slack engineers. Creates a flat network where distributed nodes communicate securely. Firewall rules in the protocol. 20,000+ servers in 140+ countries (vendor); 20,681 servers at 191 locations in 148 nations per Wikipedia citing Proton
Nebula Scalable overlay network built by Slack | ProtonVPN (Infrastructure) VPN with encrypted infrastructure and no-log policy | |
|---|---|---|
| Overview | ||
| Rating | 3.9 (0 reviews) | 3.9 (0 reviews) |
| Pricing model | free | freemium (Proton Free plan exists with unlimited data) |
| Starting price | Free | Free tier available |
| Best for | Infrastructure engineers building a large self-hosted mesh across clouds and colos who want identity-based networking with no SaaS dependency and can run a certificate authority safely. | Privacy-conscious users and small teams wanting an audited no-logs VPN with Swiss jurisdiction, open-source clients, and a free tier that does not expire into uselessness. |
| Features | ||
| IPv6 | ||
| DDoS protection | ||
| Automated backups | ||
| Snapshots | ||
| Managed option | ||
| Bare metal | ||
| GPU available | ||
| S3-compatible | ||
| Hourly billing | ||
| Free tier | ||
| Tags | ||
| Tags | free tieropen sourceself hostable | open sourceteam features |
| Visit Nebula → | Visit ProtonVPN (Infrastructure) → | |
Nebula
Pros
- + Free and open source; no vendor sits on your data path
- + Proven at scale — Slack's overlay runs on 50,000+ documented production hosts
- + Modern, non-homegrown crypto: Noise Protocol Framework, Curve25519/P256, AES-256-GCM
- + Certificate-based identity with groups-style firewall rules enforced between peers
- + Direct peer-to-peer tunnels with NAT traversal; lighthouses handle discovery only
Cons
- - You run the PKI: CA key custody, one-year default CA lifetime, certificate signing per node
- - No GUI, no hosted control plane, no SSO in the open-source edition
- - Operationally steeper than WireGuard and much steeper than managed mesh products
- - Overlay IPv6 and mobile client polish lag the desktop experience
- - No support contract or SLA unless you buy the third-party managed offering
ProtonVPN (Infrastructure)
Pros
- + Published third-party no-logs audits (Securitum) and open-source client apps — verifiable privacy claims, not slogans
- + Genuinely usable free tier with unlimited data and no credit card requirement
- + Swiss jurisdiction under Proton AG, moving to a non-profit foundation structure since 2024
- + WireGuard/OpenVPN/IKEv2 plus Stealth protocol for networks that block VPN traffic
- + Secure Core routing counters compromised-datacenter risk; NetShield blocks ads, trackers, and malware
- + Paid plans cover 10 devices across 140+ countries with priority support and a 30-day money-back guarantee
Cons
- - $9.99/month rolling price is at the top of the mainstream VPN market; real value requires a 1-2 year prepayment
- - Free tier is one device with random country assignment from ten — no location control
- - Most of the 20,000+ server fleet is rented from third-party network operators rather than Proton-owned hardware
- - No published uptime SLA — the 30-day money-back guarantee is the only contractual commitment
- - Primarily a privacy/access product: no site-to-site networking, static IPs, or deep zero-trust policy on standard plans
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