VPN App · Multi-protocol Tunnel

Open Tunnel Config Files

Open-source SSH tunnel. Transparent codebase and supports multiple connection modes.

Multi-protocol Tunnel .tnl config 5 7.45 MB

v1.0.0

Latest version

.tnl

Config format

Multi-protocol Tunnel

Protocol

Configs available

5.0

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Overview

What is Open Tunnel

Open Tunnel supports multiple connection methods in a single app, making it a useful tool when you are not sure which protocol your network is currently allowing. It is particularly popular on networks where single-protocol apps have all been individually blocked, because Open Tunnel can cycle through methods until it finds one that passes. The config file specifies which methods to attempt and in what order.

Decision guide

When to use Open Tunnel

Use Open Tunnel when

✓ Single-protocol apps are all failing and you want an app that tries multiple methods automatically

✓ You are on a network with unpredictable filtering that changes frequently

✓ You want to test which protocol your network currently allows without switching apps

✓ Other apps work but disconnect frequently , Open Tunnel can reconnect using a different method

Switch to another app when

◆ A single-protocol app like Ha Tunnel Plus is working reliably , no need for multi-protocol overhead

◆ You need the fastest possible connection , dedicated apps like HTTP Custom are faster

◆ You want to create custom configs , Open Tunnel has limited config editing options

◆ Speeds are inconsistent , try a dedicated app once you know which protocol your network allows

Setup guide

How to import and connect Open Tunnel

Download the config file

Open Open Tunnel, tap Import, select the file, then tap Connect

FAQ

Open Tunnel questions answered

Open Tunnel uses .tnl config files. Download and import the file before attempting to connect.

Open the app, tap Import, select the .tnl file from your downloads, then tap Connect.

Open Tunnel supports multiple tunnelling protocols. The specific protocol used depends on the config you import.

The config may be outdated. Download a fresh one from our list and try again.

Yes. Open Tunnel is free to download. The configs on this page are also free.

Open Tunnel is designed to work on networks with firewall restrictions. Results vary by network and country.

We update configs daily. If your current config stops working, return to this page and download the latest one.

Latest release

What's new in Open Tunnel v1.0.0

v1.0.0 9 May 2026 7.5 MB

Imported from server

Download v1.0.0

APK History

Version history

v1.0.0 Latest

Imported from server

9 May 2026 · 7.5 MB

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