6 free alternatives to Tailscale

ZeroTier's free plan includes 10 devices, 1 network, 1 network admin, plus community support and documentation access. That makes it a simple fit for small overlays where you want device-to-device connectivity without paying yet. Compared with Tailscale, it gives you a higher device ceiling on the free tier, but the tradeoff is a much smaller free network model and less room for team-style access control. If your setup is a personal lab, a small test network, or a single remote-access mesh, ZeroTier is an easy place to switch when Tailscale's 6-user cap gets in the way.

• Beats Tailscale: Higher free device allowance: 10 devices instead of Tailscale's unlimited devices but 6-user cap for the account.
• Falls short: Much narrower free collaboration model: only 1 network and 1 network admin.
• Who should switch: Switch to ZeroTier if you need a small always-free network with more device capacity and simple admin overhead.

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Smart Grow Vault App's free plan is for secrets work rather than network connectivity. It includes 1 organization, up to 3 apps per organization, 2 environments per app, 50 variables per environment, 2 secure files per environment, 1 member, 2 API keys, 10,000 API requests per month, and 30 API requests per minute. Free access is broad enough for a small secrets store and development workflow, especially if you need structured vaulting around apps and environments. It falls short of Tailscale on connectivity features because it is not a VPN or tunneling tool, but it can be the better choice when the thing you really need to control is credentials, not network paths.

• Beats Tailscale: Better built-in secrets-management capacity for variables, secure files, and API requests.
• Falls short: No device, network, or ACL-group connectivity layer like Tailscale.
• Who should switch: Switch to Smart Grow Vault App if your main free-tier bottleneck is storing and serving app secrets rather than connecting devices.

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Infisical's free plan includes the dashboard UI, API, CLI, SDKs, Kubernetes Operator, Infisical Agent, webhooks, 2FA, all listed integrations, secret referencing and overrides, secret scanning and leak prevention, secret sharing, and community support in Slack. For teams that live in secrets delivery and runtime access control, that is a broad free feature set. Its free tier is less about strict workspace quotas and more about giving you the tools to manage secrets across apps and pipelines. It falls short of Tailscale on zero-trust networking, but it is stronger when the primary job is secret management for development and production systems.

• Beats Tailscale: Much broader free secret-management feature set, including agent, operator, scanning, and integrations.
• Falls short: No device, tagged-resource, or ACL-group connectivity quotas for network access.
• Who should switch: Switch to Infisical if you want a free secrets platform with more workflow tooling and less need for network tunneling.

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ngrok's free offering gives $5 of one-time usage credit, up to 3 online endpoints, up to 1 GB data transfer, up to 20k HTTP/S requests, an assigned dev domain for public endpoints, 1 team member, 3 concurrent agents, 1 development domain, 1 TCP address, 24 hours of traffic inspector retention, and basic email support. It is the most natural fit when you need to expose local services, test webhooks, or publish a demo without setting up a broader private network. It falls short of Tailscale on durable team networking, but it is better when the problem is external access to a service rather than private device mesh connectivity.

• Beats Tailscale: Better free public endpoint tooling, including dev domains and HTTP/S request allowances.
• Falls short: One-time credit model and endpoint-based limits instead of Tailscale's more persistent team-oriented access model.
• Who should switch: Switch to ngrok if your free use case is exposing local services or testing endpoints on the public internet.

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Aikido Security's free plan includes access for up to 2 users, dependency scanning, SAST and AI SAST analysis, secrets detection across IDE, CI, and Git, cloud scanning, open source license scanning, outdated software and IaC detection, IDE plugins, rescans every 3 days, up to 10 repositories, up to 2 container images, up to 1 domain, up to 1 cloud account, up to 10 AI AutoFixes per month, and up to 250,000 protected requests per month. That is a wide free security surface for small codebases and cloud setups. It is not a networking replacement for Tailscale, but it is stronger if the real free-tier constraint is security coverage across repositories and runtime requests.

• Beats Tailscale: Much broader free application-security coverage, with repo, cloud, and request-based quotas.
• Falls short: Not a connectivity or VPN-style product, so it does not replace Tailscale's network access controls.
• Who should switch: Switch to Aikido Security if your free-tier need is code and cloud security rather than remote device connectivity.

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Serveo's free plan includes 3 active tunnels, custom subdomains, and an interstitial warning on free-plan tunnels. That keeps the setup lightweight for hobby projects, testing, webhook checks, demos, and local device access. It is the clearest option when you want a quick SSH-style or remote port-forwarding path instead of a broader zero-trust network. It loses to Tailscale on user and resource management, since it does not offer ACL groups, tagged resources, or the same device-centric workspace model. But for simple tunnel publishing, it is the least demanding switch.

• Beats Tailscale: Simpler free tunnel publishing with custom subdomains and 3 active tunnels.
• Falls short: No ACL groups or tagged-resource model for managing private network access.
• Who should switch: Switch to Serveo if you only need a few public tunnels and want the smallest possible setup change.

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