Nebula
Scalable overlay network built by Slack
4.3(389 reviews)free
free tieropen sourceself hostable
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.
Pros
- Open source by Slack engineers
- Scales to hundreds of thousands of nodes
- Firewall rules built into protocol
Cons
- Requires manual configuration
- No GUI — DevOps/engineering tool
Best For
Infrastructure engineers building large-scale private overlay networks for distributed systems
Pricing
Free Forever
Free
- Core features included
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