6 Best ngrok Alternatives in 2026 (Free & Open Source)

ngrok popularized the “one command, one public URL” workflow for exposing a local server to the internet, and it’s still a solid default for quick demos and webhook testing. But its free tier is tight, UDP isn’t supported, and pricing scales in ways that hurt as soon as you move past casual use — whether that’s a team that needs more endpoints, a security team that wants zero trust instead of a public relay, or a fleet of IoT devices that need to stay reachable permanently, not just for a debugging session.

At the end of the day, the ideal choice comes down to what your setup actually demands. A solid tunneling solution should cover secure connectivity, no open ports, stable URLs, monitoring, and fleet-friendly management.

How We Compare These Alternatives

Not every tool on this list is solving the same problem. Some are minimalist tunnels, some are zero-trust networking platforms, and one is a full device-management platform that happens to include reverse tunneling.

To make the comparison fair, we evaluate each tool against the same criteria:

• Stable URLs — does the endpoint survive a restart, or do you get a new random URL every session?
• Protocol support — HTTP/HTTPS only, or also TCP, TLS, UDP?
• Free tier viability — can you actually use it day-to-day, or does it exist mainly as a trial?
• Setup friction — install a binary, run an SSH command, or something else entirely?
• Security model — public relay with optional auth, or zero-trust/mTLS by default?
• What happens past “just a tunnel” — fleet management, inspection, replay, teams — anything beyond forwarding a port?
• Pricing — how the cost scales as usage grows.

Recommended Reading: SocketXP vs. ngrok, Tailscale, and Dataplicity guide.

Quick Comparison: ngrok vs 6 Top Alternatives

What Is ngrok, and Where Does It Fall Short?

ngrok creates an outbound connection from your machine to ngrok’s cloud, which hands back a public URL and forwards traffic to your local port. It works behind NAT and most firewalls with essentially no configuration, and its request-inspection dashboard is genuinely good for debugging.

Where people start looking elsewhere:

• Free-tier limits. Up to 3 online endpoints, 1 GB of data transfer per month, 20,000 HTTP/S requests per month, and only one assigned dev domain per account — not a custom or branded domain. Free-tier HTTP/S endpoints also show an interstitial warning page to visitors, and TCP endpoints require credit card verification even on the free plan. Custom domains, branded domains, and the ability to remove the interstitial page are all gated behind paid plans.
• Susceptible to port scanners. ngrok’s public endpoints (linked directly to your localhost endpoints via the reverse tunnel) are highly visible to automated port scanners (like Shodan, Censys, or Masscan). This is equally unsafe, like opening up your router ports for port-forwarding setup.
• No UDP tunnels, on any plan — ngrok’s endpoint types are limited to HTTP, TCP, and TLS, with no roadmap to add UDP. That’s a hard blocker for MQTT-over-UDP, CoAP, DTLS, or real-time sensor streaming.
• Account required just to get a tunnel running.
• Usage-based pricing with several separate meters — data transfer, HTTP/S requests, TCP/TLS connections, users, and traffic policy units are all billed and capped independently, which gets complex to predict and maps poorly onto both large dev teams and IoT fleets with hundreds or thousands of devices. (Notably, ngrok does offer custom per-device or per-customer pricing for fleet/device connectivity — but only through a sales conversation, not self-serve.)
• It’s fundamentally a tunnel/ingress platform, not an IoT device management platform. No OTA update delivery, no device health dashboard — anything beyond routing traffic to an endpoint has to be built separately.

That last point is really the dividing line between the six tools below: some replace ngrok’s tunnel with a better/cheaper/more open tunnel, and one replaces the entire category of problem for teams managing physical devices rather than dev laptops.

The 6 Best ngrok Alternatives in 2026

1. SocketXP

Best for: IoT and edge device fleets that need persistent and secure reverse tunnels for remote access, OTA updates, and monitoring — not just a temporary dev tunnel.

SocketXP also offers persistent, secure HTTPS public web URLs (with random subdomains) to remotely access local web services in your IoT devices over the internet. Unlike Ngrok, SocketXP doesn’t open up a publicly accessible port in its cloud server, preventing automated port scanners from accessing your device, laptop or home server. All SocketXP endpoints requires authentication either using a short-lived auth token or a client TLS certificate.

SocketXP is a different kind of product from the rest of this list. More than a general-purpose tunnel, it’s an IoT device management platform with a secure, persistent tunnel built into every device agent. If your “local server” is actually a Raspberry Pi, an industrial IIoT edge device, an Nvidia Jetson board, or an embedded Linux device deployed in the field (not a laptop) — this is the category SocketXP is built for.

Key features

• Persistent SSH, HTTPS, VNC, RDP, and MQTT remote access to every device, with no inbound ports opened
• OTA software, firmware, Docker Container, and configuration updates, with rollout tracking and rollback
• leet dashboard with device health monitoring, connectivity status, and geolocation
• Zero Trust security by default — mTLS client certificates and short-lived tokens, no shared keys, SSO OAuth authentication
• Audit logging and role-based access control
• Works over 4G, 5G, Starlink, and CGNAT via outbound-only connections
• Optional self-hosted/on-premise deployment for compliance-sensitive environments
• SocketXP offers a free community-version of its self-hosted on-premise IoT Gateway software to remotely manage a fleet size of up to 100 IoT devices.

SocketXP vs ngrok

ngrok gives you a tunnel to a port. SocketXP gives you that same connectivity plus everything you’d otherwise have to build yourself to operate a real device fleet at enterprise scale: update delivery, monitoring, alerting, and access control. ngrok has no concept of a “device” or a “fleet” at all — every one of those capabilities is out of scope for it. The tradeoff is that SocketXP isn’t the right tool if you just want a quick URL for a webhook test or a publicly open port for remote SSH access; it’s built for always-on production-grade secure connectivity to Linux based IoT hardware, not short dev sessions.

Pricing

Roughly $0.50 per device per month on Lite plan (around $20/month for up to 40 devices), including the full platform — not just tunneling. Volume based discounts available to large enterprise customers. A 30-day free trial is available with no credit card required.

Note: Both SocketXP and Ngrok can carry UDP traffic over TCP tunnels. So that one can remotely access any UDP service. But, we don’t support UDP tunnels natively.

2. zrok

Best for: Developers who want a zero-trust, open-source alternative and don’t mind self-hosting for full control.

zrok is built on top of OpenZiti, an open-source zero-trust networking overlay. Instead of simply relaying traffic through a public proxy, zrok requires identity-verified connections and can share resources privately — via a token, with no public endpoint at all — or publicly through an HTTPS frontend.

Key features

• Public sharing (HTTPS URL) and private sharing (token-based, never public) modes
• Built on OpenZiti’s zero-trust overlay — outbound-only, no inbound ports required
• Automatic TLS, plus protections against oversized uploads
• Fully open source (Apache 2.0) and self-hostable with no artificial limits
• Managed free tier: 5 GB/day transfer, up to 25 environments, 50 share backends

zrok vs ngrok

The security model is the core difference. ngrok is a public relay — anyone with the URL can attempt to reach it, and security is layered on top with basic auth or OAuth on paid plans. zrok’s default posture is the opposite: private sharing produces no public endpoint at all, and every connection is identity-verified through OpenZiti before it’s established. For teams that prioritize auditability and self-hosting over convenience, zrok is one of the few alternatives that’s fully open source end to end, not just an open-source client talking to a closed-source cloud.

Pricing

self-hosted zrok is free with no limits. The managed service has a free tier as described above; there’s no traditional paid consumer tier since NetFoundry’s model centers on self-hosting or enterprise deployment.

3. Cloudflare Tunnel

Best for: Free, persistent URLs with no bandwidth cap — if you’re comfortable with a Cloudflare account.

Cloudflare Tunnel (cloudflared) routes traffic from Cloudflare’s edge network to your local server through an outbound-only connection. It supports both instant, unauthenticated quick tunnels and persistent named tunnels tied to a custom domain.

Key features

• Named tunnels with a custom domain that stays stable indefinitely, on the free plan
• Quick tunnels via a single command, no account needed, for ephemeral testing
• Outbound-only architecture — your origin never accepts direct inbound traffic
• No bandwidth caps or session timeouts on the free tier
• Access to Cloudflare’s broader security stack (WAF, Access, DDoS protection) if you’re already on the platform

Cloudflare Tunnel vs ngrok

Cloudflare Tunnel’s biggest advantage is solving ngrok’s most common complaint — unstable free-tier URLs — at zero cost. A named tunnel with your own domain simply doesn’t expire. What it doesn’t do is replicate ngrok’s debugging experience: there’s no built-in request inspector, no replay, no traffic logging. It’s a stronger tunnel than ngrok’s free tier, but a weaker debugging tool.

Pricing

Free, with no paid tier specifically for tunneling — cost only enters if you adopt other Cloudflare products.

4. Tailscale

Best for: Teams that want secure remote access to a private network and not just one service.

Tailscale isn’t a tunnel in the traditional sense. It’s a mesh VPN built on WireGuard that connects your devices into a private network (a “tailnet”). Its Funnel feature lets you expose a specific service from that private network to the public internet when you actually need to, but the default posture is the opposite of ngrok: nothing is public unless you explicitly turn it on.

Key features

• Funnel: Expose a local service publicly with tailscale funnel, while keeping the rest of the network private.
• Encrypted peer-to-peer connections: Establish encrypted peer-to-peer connections between devices whenever possible, rather than routing traffic through a central relay.
• MagicDNS: Give every device a stable, human-readable name, eliminating the need to reconfigure random IPs or URLs.
• SSO & ACLs: Use SSO-based authentication and ACLs to control exactly which users and devices can access specific resources.
• Free Personal tier: Free Personal plan for up to 6 users with unlimited user devices, making Tailscale useful for much more than just tunneling.

Tailscale vs ngrok

The architectures aren’t really comparable one-to-one. ngrok’s whole job is making something public; Tailscale’s whole job is keeping things private, with Funnel as a deliberate, scoped exception. If you only need a one-off public URL for a webhook test, Tailscale is more setup than you need. But if you’re already managing remote access to multiple internal services — servers, dashboards, dev machines — Tailscale replaces both the VPN and the tunnel with one tool, and Funnel covers the rare cases where something does need to go public.

Pricing

Free Personal tier for up to 6 users. Paid plans are seat-based — Standard around $8/user/month, Premium around $18/user/month, with custom Enterprise pricing.

5. Pinggy

Best for: The lowest-friction “no install needed” tunnel, with UDP support ngrok lacks, and quick dev access through a public open port.

Pinggy’s standout feature is that it requires nothing beyond SSH, which is already on every major OS. Run one SSH command and you get a public URL — no client to download, no account required for a basic test tunnel. However, the tunnel will timeout in 60 minutes - so effectively not a persistent tunnel.

Pinggy’s SSH reverse tunnel has the same inherent security risk associated with ngrok’s reverse tunnel. Pinggy’s SSH reverse tunnel setup is equivalent to setting up port-forwarding in your router and exposing your laptop, PC or home server to the public internet. This is because Pinggy’s SSH server will open up an internet visible public port that is mapped directly (via the SSH reverse tunnel) to your laptop, PC or home server’s local port, for any automated port scanners (like Shodan, Censys, or Masscan) to access. Requires security hardening via IP whitelists.

Key features

• Zero-install setup via a single SSH command for quick dev/testing.
• Requires a Pinggy CLI agent for a more formal and sophisticated setup.
• Supports HTTP(S), TCP, TLS, and UDP tunnels
• Terminal UI with QR codes and live request inspection
• Live header manipulation on outgoing/incoming traffic without code changes
• Multiple auth options on paid plans: Basic Auth, OAuth 2.0, JWT, mTLS
• Persistent subdomains and custom domains on paid plans
• Publicly open ports make it susceptible to automated port scanners

Pinggy vs ngrok

Pinggy undercuts ngrok on both setup friction and price. Where ngrok requires a client download and account sign-up before your first tunnel, Pinggy works from a terminal you already have. It also supports UDP tunneling, which is a flat no for ngrok regardless of plan. The gap versus ngrok is at the high end: no global load balancing/edge routing, and OAuth 2.0 for tunnel visitors isn’t available the way it is on ngrok’s paid tiers.

Pricing

Free tier with 60-minute tunnel sessions; paid plans start around $2.50–3/month billed annually, including custom domains, persistent TCP ports, and header manipulation.

6. LocalXpose

Best for: The most feature-complete client-based alternative, if you don’t mind installing one.

LocalXpose positions itself as a full-featured reverse proxy with a real GUI, not just a CLI. It supports the widest protocol range on this list and adds tooling — like a built-in file server and request/response editing — that most lightweight tunnels skip.

LocalXpose’s reverse tunnel has the same inherent security risk associated with ngrok’s reverse tunnel. LocalXpose’s cloud server will open up an internet visible public port that is mapped directly (via the reverse tunnel) to your laptop, PC or home server’s local port, for any automated port scanners (like Shodan, Censys, or Masscan) to access. Requires security hardening via IP whitelists.

Key features

• HTTP, HTTPS, TCP, TLS, and UDP tunnel types
• Full GUI client alongside the CLI, for visual tunnel management
• Traffic inspection with request/response viewing and editing, and payload replay
• Built-in file server for instantly sharing files
• Wildcard custom domains on paid plans
• Publicly open ports make it susceptible to automated port scanners

LocalXpose vs ngrok

LocalXpose is arguably one of the closest alternatives to ngrok for power users. It matches or beats ngrok on protocol support, notably with UDP, and offers a desktop GUI alongside its CLI. The tradeoffs: it relies on external relay infrastructure rather than providing a self-hosted deployment model, doesn’t provide the same built-in OAuth/OIDC visitor authentication that ngrok offers, and requires its client to be installed before starting a tunnel — unlike zero-install options such as Pinggy or localhost.run.

Pricing

Starts at $8/month, roughly in line with ngrok’s own entry-level paid plan, with a limited free tier for trying it out.

How to Choose the Right ngrok Alternative

• Managing IoT or edge devices in production? -> SocketXP. This is the only tool here built for IoT fleets, not laptops or home servers. Secure tunnels with no open ports, OTA updates and device monitoring aren’t features the others have at all. Moreover, it’s self-hostable.

• Want zero-trust security and full control over your infrastructure? -> zrok. Self-hostable, open source, and private-by-default sharing.

• Want a permanent free URL with zero bandwidth anxiety? -> Cloudflare Tunnel. Best free option for stability, weakest on debugging tools.

• Just need to share something right now, and want secure access to more than one internal service? -> Tailscale. Best if tunneling is only part of what you need — it replaces a VPN too.

• Want the lowest setup friction with real features (UDP, inspection, custom domains)? -> Pinggy. No install, no account — just one SSH command to quickly get a working tunnel through an internet facing open port.

• Want the closest feature match to ngrok, including a GUI, and don’t mind paying? -> LocalXpose. Matches ngrok on protocol support, public open ports and adds a GUI client it doesn’t have.

Conclusion

ngrok is still a fine choice for a quick demo or a one-off webhook test. But “ngrok alternative” searches usually mean you’ve hit one of its actual limits — bandwidth, UDP, pricing, public open ports, or the fact that it’s only a tunnel and nothing more. Match the alternative to the limit you hit: zrok or Cloudflare Tunnel if it’s cost and stability, Pinggy or LocalXpose if it’s features and protocol support, Tailscale if you need secure access to more than a single service, and SocketXP if the “local server” you’re exposing is actually a fleet of physical devices that need to stay managed, not just reachable.

Start your free trial — no credit card required →

SocketXP supports Raspberry Pi, Nvidia Jetson, Arduino, and all ARM/x86/MIPS-based embedded Linux devices. Works over Wi-Fi, Ethernet, 4G, 5G, and Starlink.

Frequently Asked Questions

1. Is ngrok suitable for production IoT deployments?

   ngrok works well for temporary access during development and debugging, but it lacks the fleet management, OTA update delivery, device monitoring, audit logging, and per-device access control that production IoT deployments require. It is a tunneling tool, not an IoT device management platform.

2. What is the difference between ngrok and SocketXP?

   ngrok creates a temporary internet-accessible tunnel to a local service. SocketXP is a full IoT device management platform that includes persistent tunneling plus OTA updates, device monitoring, fleet dashboards, Zero Trust security, asset tracking, and audit logging — all in a single lightweight agent.

3. Can I manage 1,000 IoT devices with ngrok?

   You can create tunnels to 1,000 devices with ngrok on a paid plan, but you will not have centralized device management, OTA update capability, health monitoring, or fleet-level visibility. Those capabilities would need to be built separately. SocketXP provides them out of the box and is designed to scale to 100,000+ devices.

4. What protocols does SocketXP support for IoT?

   SocketXP supports SSH, HTTPS, VNC, RDP, MQTT, and TCP tunneling. It also supports UDP-based protocols where required. This covers the full range of access patterns needed for IoT devices — command-line access, web dashboards, desktop environments, sensor data streaming, and API access.

5. How much does SocketXP cost per IoT device?

   SocketXP is priced at $0.50 per device per month on standard plans ($20/month for up to 40 devices), including all platform features. Custom pricing is available for large enterprise deployments or self-hosted installations.

6. Does SocketXP work on devices behind 4G or Starlink connections?

   Yes. The SocketXP agent uses outbound-only connections to the SocketXP cloud gateway, which means it works behind any network — 4G, 5G, Starlink, CGNAT, or corporate firewalls — without requiring static IPs or open inbound ports.

7. Can SocketXP be self-hosted on-premise?

   Yes. SocketXP is available as a self-hosted on-premise deployment for enterprises with data sovereignty, compliance, or air-gapped requirements. Contact the SocketXP team for on-premise licensing details.