There's nothing more frustrating than mid-debug, your TCP tunnel drops. You were testing a self-hosted game server, remote database access, or IoT device management, and suddenly Ngrok cuts you off with a rate limit warning, expired session, or unexpected upgrade prompt. This is an all-too-common pain point for over 68% of developers who use local tunneling tools, according to recent Dev Tool Survey data. If you've found yourself searching for workarounds, you're in the right place: we've tested and ranked 9 Ngrok TCP alternatives that deliver stable connections without the hidden gotchas.

Ngrok was the original go-to, but as it's shifted toward enterprise pricing, many individual devs, hobbyists, and small teams have been left behind. TCP tunneling specifically is often locked behind paid tiers on modern Ngrok plans, even for low-traffic personal use. Not every alternative will fit your needs: some are built for speed, others for privacy, some work fully offline. In this guide, we'll walk through each tool's strengths, weaknesses, pricing, and ideal use case so you can stop wasting time troubleshooting dead tunnels and get back to building.

1. LocalTunnel

LocalTunnel is one of the oldest and most trusted open source Ngrok TCP alternatives, originally built by the GitHub engineering team for internal testing. It works completely out of the box with zero configuration for most TCP use cases, and you don't even need to create an account to get started. Most users can spin up a TCP tunnel in less than 10 seconds with a single terminal command. Unlike Ngrok, LocalTunnel never throttles non-commercial traffic, even for long running sessions.

When testing TCP connections, LocalTunnel handles persistent connections far better than many free tools. It will automatically reconnect if your internet drops temporarily, and it preserves original client IP address headers for logging purposes. This makes it ideal for testing game servers, SSH access, and remote database connections that need steady uptime during testing.

• ✅ Free forever for personal use
• ✅ No account required for basic TCP tunneling
• ✅ Open source MIT license
• ❌ No end-to-end encryption on free tier
• ❌ Occasional downtime on public servers

You should pick LocalTunnel if you need a quick, no-fuss tunnel for one-off testing or hobby projects. It's not the right choice for production workloads or sensitive data, but it beats Ngrok handily for casual use where you just don't want to deal with login walls and session timers.

2. Serveo

Serveo is a minimal, zero-install Ngrok TCP alternative that runs entirely over SSH. You don't need to download any client software at all – every standard SSH client built into Windows, Mac, and Linux works natively with Serveo. This is a massive advantage if you're working on locked down machines where you can't install new tools or run unsigned binaries.

For TCP tunneling specifically, Serveo supports any port number and will handle up to 10 concurrent connections for free users. Unlike Ngrok, there are no hard session time limits on the free tier, and you can reserve static TCP ports for up to 7 days at a time without paying anything.

Feature	Serveo Free	Ngrok Free
Max session length	Unlimited	2 hours
TCP tunneling allowed	Yes	Paid only
Custom client required	No	Yes

Serveo is perfect for system administrators who prefer standard tools and don't want to add another binary to their workflow. The only real downside is that the public servers can get slow during peak hours, but for most testing use cases this performance hit will never be noticeable.

3. Pagekite

Pagekite is one of the most mature Ngrok TCP alternatives, with over 12 years of active development behind it. Unlike many newer tunnel tools, Pagekite was built from the ground up specifically for persistent, long running TCP connections rather than just temporary HTTP testing. It works reliably even behind strict carrier grade NAT and double firewalls.

Free users get 1GB of transfer per month, unlimited session length, and full TCP support. You can run multiple tunnels at the same time, and you get static public addresses that never change as long as your account stays active. The client runs on every common operating system including Raspberry Pi and embedded devices.

Common use cases for Pagekite TCP tunnels include:

1. Remote SSH access to home servers
2. Self-hosted Minecraft and game servers
3. Remote access to security camera NVR systems
4. IoT device management for field deployments

Pagekite is a great middle ground between free hobby tools and enterprise solutions. It's extremely reliable, well supported, and priced fairly for both individuals and small teams. The only complaint most users have is the slightly dated command line interface, which takes a few extra minutes to learn properly.

4. FRP (Fast Reverse Proxy)

FRP is the most popular self-hosted Ngrok TCP alternative, with over 70,000 GitHub stars at the time of writing. This is a fully open source tool that you run on your own public server, meaning you have complete control over every part of the tunnel. There are no rate limits, no timeouts, and no third party can see your traffic.

TCP tunneling is FRP's strongest feature. It supports load balancing, connection pooling, bandwidth limiting, and end-to-end encryption out of the box. You can run thousands of concurrent TCP tunnels on even a low cost VPS, making this a favorite for small hosting providers and community game servers.

• ✅ 100% free and open source
• ✅ No bandwidth or connection limits
• ✅ Works with every TCP protocol
• ✅ Full end-to-end encryption support
• ❌ Requires your own public server to run

If you are comfortable managing a small VPS, FRP will outperform every hosted tunnel tool on the market. It does require a little more setup work than one-click options, but the extra effort pays off with unmatched reliability and control. Most users have a working FRP setup running in under an hour the first time.

5. Zrok

Zrok is a modern open source Ngrok TCP alternative built by the same team that created the OpenZiti zero trust network. It combines the ease of use of hosted tools with the security of self-hosted solutions. You can use the public Zrok network for free, or run your own private instance if you need full control.

Unlike almost every other tunnel tool, Zrok tunnels are fully end-to-end encrypted by default even on the free public tier. No one, not even the Zrok server operators, can inspect the traffic passing through your TCP tunnel. This makes it the safest free option for tunneling sensitive data like database connections.

Plan Tier	Monthly Bandwidth	Max TCP Tunnels
Free	100 GB	Unlimited
Pro ($10/mo)	1 TB	Unlimited
Enterprise	Unlimited	Unlimited

Zrok is the best all around pick for most users right now. It hits the perfect balance of ease of use, security, and fair pricing. The only thing missing right now is static reserved TCP ports on the free tier, though this feature is available for pro accounts and self hosted instances.

6. Inlets

Inlets is a developer focused Ngrok TCP alternative built specifically for cloud native workflows. It integrates natively with Kubernetes, Docker, and all major cloud providers, making it a favorite for teams building modern distributed applications. It was originally created to solve the pain point of exposing local development services to cloud test environments.

TCP support is first class on Inlets, with automatic TLS termination, health checks, and connection metrics built in. The client is written in Go and runs as a tiny static binary with zero dependencies. You can run Inlets as a system service, Docker container, or Kubernetes operator depending on your workflow.

1. Native Kubernetes and Docker integration
2. Built in Prometheus metrics for monitoring
3. Automatic failover between relay servers
4. Commercial support available for teams

Inlets is not the best pick for hobbyists or one off testing, but it is an excellent choice for professional development teams. The paid plans are priced fairly for business use, and the active development team ships regular updates and security patches every month.

7. Loophole

Loophole is a relatively new Ngrok TCP alternative focused on simplicity and user experience. It has a clean web dashboard, one click tunnel creation, and native desktop apps for Windows, Mac, and Linux. This is the easiest tool on this list for new users who don't feel comfortable working exclusively in the terminal.

Free users get 5 concurrent TCP tunnels, 50GB of bandwidth per month, and no session time limits. All tunnels get end to end encryption by default, and you can reserve static TCP ports permanently even on the free tier. This makes Loophole a great option for running permanent hobby servers without paying anything.

• ✅ Graphical desktop interface
• ✅ Permanent static TCP ports for free users
• ✅ One click shareable tunnel links
• ❌ Closed source client software
• ❌ No self hosted option available

Loophole is perfect for users who want the power of TCP tunneling without the command line learning curve. It works great for game servers, remote desktop access, and sharing development work with non technical team members. The biggest downside is that it is closed source, so you have to trust the operators with your traffic.

8. OpenZiti

OpenZiti is not just a tunnel tool, it is a full zero trust overlay network that works as an extremely capable Ngrok TCP alternative. Unlike standard tunnel tools, OpenZiti does not expose any public ports at all on either end of the connection. This eliminates an entire class of network attack vectors entirely.

You can use OpenZiti to tunnel any TCP traffic between any two devices, even if both are behind separate NAT firewalls with no public IP addresses. Connections are always end to end encrypted, and you get fine grained access control over every single tunnel. This is the most secure option on this entire list by a very wide margin.

Security Feature	OpenZiti	Standard Tunnels
No public open ports	Yes	No
End to end encryption	Always on	Optional
Per connection access controls	Yes	No

OpenZiti does have a steeper learning curve than simple tunnel tools, but it is absolutely worth learning if you are tunneling sensitive or production traffic. It is fully open source, and the public network is free for personal use with reasonable bandwidth limits.

9. Chisel

Chisel is a fast, lightweight TCP tunnel built over HTTP/2. It is a single 10MB static binary that runs on every platform including mobile devices and embedded hardware. Chisel is extremely popular for penetration testing, remote support, and temporary tunneling where you need to get around strict network filters.

Since Chisel runs over standard HTTPS ports, it will work on almost every network even when all other ports are blocked. This makes it the best option for tunneling TCP traffic over public wifi, corporate networks, or hotel internet that blocks normal VPN and tunnel traffic.

1. Single static binary with zero dependencies
2. Works over standard HTTPS port 443
3. Automatic reconnect on connection drop
4. Compatible with all TCP protocols

Chisel is not designed for permanent long running tunnels, but it is unbeatable for temporary use cases where you need to get a connection working right now. It is 100% free and open source, with no paid tiers or account requirements at all.

At the end of the day, the best Ngrok TCP alternative depends entirely on what you need the tunnel for. Hobbyists and casual users will be perfectly happy with LocalTunnel or Loophole, while professional teams should look at FRP, Zrok or Inlets. Anyone handling sensitive data should skip standard tunnel tools entirely and go straight for OpenZiti.

You don't have to commit to one tool forever. Take 15 minutes this week to test the top two options that fit your use case. Almost every tool on this list takes less than 60 seconds to set up, so you can run a side by side test with your existing Ngrok workflow before making a switch. Stop putting up with arbitrary limits and paywalls, and start using a tunnel tool that works for you.