Audience
VPN software for organizations
About Nebula
Innovative companies with high expectations of availablility and reliability run their networks with Nebula. Slack open sourced the project after years of R&D and deploying it at scale. Nebula is a lightweight service that’s easy to distribute and configure on modern operating systems. It runs on a wide variety of hardware including x86, arm, mips, and ppc. Traditional VPNs come with availability and performance bottlenecks. Nebula is decentralized: Encrypted tunnels are created per-host and on-demand as needed. Created by security engineers, Nebula leverages trusted crypto libraries (Noise), includes a built-in firewall with granular security groups, and uses the best parts of PKI to authenticate hosts.
Other Popular Alternatives & Related Software
NetBird
NetBird is an open-source Zero Trust Networking platform built by engineers for engineers.
It radically simplifies deploying secure private networks using the high-performance WireGuard® protocol. Unlike traditional VPNs, NetBird creates decentralized, low-latency, high-throughput private networks with a single management console for identity-based access control.
Integrating seamlessly with your IdP for SSO and MFA, it forms direct, encrypted peer-to-peer tunnels between devices, servers, and clouds - no central bottlenecks or single points of failure. Lightweight clients ensure scalability and privacy, with traffic never passing through management services.
NetBird supports integrations with CrowdStrike, Intune, SentinelOne, pfSense, and more. Ideal for Zero Trust remote access, multi-cloud connectivity, dynamic posture checks, detailed auditing, and MSP multi-tenant management - all through one intuitive platform.
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Pangolin
Pangolin is an open source, identity-aware tunneled reverse-proxy platform that lets you securely expose applications from any location without opening inbound ports or requiring a traditional VPN. It uses a distributed architecture of globally available nodes to route traffic through encrypted WireGuard tunnels, enabling devices behind NATs or firewalls to serve applications publicly via a central dashboard. Through the unified dashboard, you can manage sites and resources across your infrastructure, define granular access-control rules (such as SSO, OIDC, PINs, geolocation, and IP restrictions), and monitor real-time health and usage metrics. The system supports self-hosting (Community or Enterprise editions) or a managed cloud option, and works by installing a lightweight agent on each site while using the central control server to handle ingress, routing, authentication, and failover.
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UTunnel VPN and ZTNA
UTunnel provides Cloud VPN, ZTNA, and Mesh Networking solutions for secure remote access and seamless network connectivity.
ACCESS GATEWAY: Our Cloud VPN as a Service offers swift deployment of Cloud or On-Premise VPN servers. It utilizes OpenVPN and IPSec protocols, enables policy-based access control, and lets you deploy a Business VPN network effortlessly.
ONE-CLICK ACCESS: A Zero Trust Application Access (ZTAA) solution that simplifies secure access to internal business applications. It allows users to securely access them via web browsers without the need for a client application.
MESHCONNECT: This Zero Trust Network Access (ZTNA) and mesh networking solution based on WireGuard enables granular access controls to business network resources and easy creation of secure mesh networks.
SITE-TO-SITE VPN: The Access Gateway solution lets you easily set up secure Site-to-Site tunnels (IPSec) between UTunnel's VPN servers and hardware network gateways, firewalls & UTM systems.
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Integrations
No integrations listed.
Company Information
Defined Networking
Founded: 2020
United States
www.defined.net
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Product Details
Platforms Supported
Cloud
iPhone
iPad
Android
Training
Documentation
Support
Online
