Understanding NGROK – Is it Really Free? A Complete Guide

Understanding NGROK

NGROK is a popular tool used by developers for creating secure tunnels from the public internet to their local machine. It allows developers to expose local servers behind NATs and firewalls to the internet, making it easier to test and debug webhooks, APIs, and other serverless applications. NGROK provides a secure way to share local resources with others, without exposing them to potential security risks.

What is NGROK?

NGROK is a command-line tool that enables secure tunneling between a local machine and the public internet. It creates a secure connection, commonly referred to as a tunnel, between the NGROK server and the NGROK client running on the local machine. This tunnel allows external traffic to be forwarded to a specific port on the local machine, without the need for complex firewall rules or port forwarding configurations.

NGROK works by creating a secure connection using Transport Layer Security (TLS) and Secure Sockets Layer (SSL) encryption. This ensures that data transferred between the NGROK server and the NGROK client is encrypted and secure.

Features of NGROK

NGROK offers a range of features that make it a powerful tool for developers:

Secure tunneling

NGROK provides a secure way to expose local servers to the internet. By creating a secure tunnel, it ensures that data transferred between the NGROK server and the NGROK client is encrypted and cannot be intercepted.

Built-in HTTP/HTTPS support

NGROK supports both HTTP and HTTPS protocols, allowing developers to expose web applications running on their local machine. This feature is particularly useful for testing and debugging webhooks, APIs, and websites before deploying them to a production environment.

Custom subdomains and domain names

NGROK allows developers to create custom subdomains and domain names to access their local servers. This feature makes it easier to share and access local resources, as custom subdomains can be easily remembered and communicated to others.

Real-time traffic inspection

NGROK provides real-time traffic inspection, allowing developers to inspect and analyze HTTP/HTTPS traffic flowing through the NGROK tunnel. This feature is useful for debugging and monitoring purposes, as it provides insights into the requests and responses being exchanged between the local server and the external client.

Benefits of using NGROK

NGROK offers numerous benefits to developers, making it an essential tool for local development and testing:

Local development and testing

NGROK makes it easy to test and debug web applications running on a local machine. By creating a secure tunnel, it allows developers to expose their local server to external traffic, enabling thorough testing of webhooks, APIs, and websites before deploying them to a production environment.

Remote access to local resources

NGROK enables remote access to local resources, even when behind firewalls or NATs. This feature allows developers to share their localhost with clients, collaborators, or stakeholders for review, feedback, or demonstration purposes.

Collaboration and demo purposes

NGROK simplifies collaboration and demo purposes by providing a secure and easy way to share local resources with others. It eliminates the need to deploy applications to a production server for demo purposes, making it a convenient option for showcasing work to clients or teammates.

NGROK Free vs. Paid Plans

While NGROK offers a free plan, it also provides paid plans with additional features and benefits. Let’s dive deeper into the different plans and evaluate their value:

Overview of NGROK pricing model

NGROK follows a subscription-based pricing model, offering a range of plans to cater to different user needs. The plans include a Free Plan, a Pro Plan, and a Business Plan. Each plan comes with its own set of features and limitations, allowing users to choose the one that best suits their requirements. Here, we will primarily focus on the comparison between the Free Plan and the paid plans.

Free Plan limitations

While the Free Plan is a great starting point for many developers, it does have some limitations:

Limited connections and concurrent tunnels

The Free Plan limits the number of connections and concurrent tunnels that can be established. This means that the number of simultaneous users accessing your local resources through the NGROK tunnel will be limited.

Session duration limit

The Free Plan imposes a session duration limit. After a certain period of time, the NGROK tunnel will be closed, and the connection to the local server will be terminated. This limitation is in place to manage resource allocation and ensure fair usage of NGROK’s infrastructure.

No custom subdomains

One key limitation of the Free Plan is the absence of custom subdomains. While you can use a randomly generated subdomain provided by NGROK, you will not be able to create your own custom subdomain or use your own domain name.

Paid Plans

NGROK offers two paid plans: the Pro Plan and the Business Plan. Let’s take a closer look at these plans:

Pro Plan features and pricing

The Pro Plan caters to individual developers and small teams. It offers several additional features compared to the Free Plan, including:

  • Unlimited connections and concurrent tunnels
  • Longer session durations
  • Custom subdomains and domain names
  • Priority access to NGROK’s support team

The Pro Plan is available at a monthly or annual subscription fee, providing flexibility for users to choose the billing cycle that suits them best.

Business Plan features and pricing

The Business Plan is designed for larger teams and organizations with more complex requirements. In addition to the features offered in the Pro Plan, the Business Plan includes:

  • Enterprise-grade security and compliance
  • SAML single sign-on (SSO) integration
  • Advanced usage analytics and reporting
  • Custom plans tailored to specific business needs

As the Business Plan is customizable, the pricing may vary depending on the specific requirements and usage patterns of the organization. Interested users can get in touch with NGROK’s sales team for more information.

Evaluating the value of NGROK Free Plan

Despite its limitations, the NGROK Free Plan has significant value for many developers:

Use cases for the Free Plan

The Free Plan is an excellent choice for developers beginning their journey with NGROK. It provides an opportunity to explore the tool’s features and benefits, and familiarize themselves with the process of creating secure tunnels. The Free Plan is also suitable for personal projects, hobbyists, and small-scale development and testing scenarios.

When to consider upgrading to a paid plan

While the Free Plan offers valuable features, there are situations where upgrading to a paid plan may be necessary:

  • If you require multiple connections and concurrent tunnels to accommodate higher traffic or a larger user base, the limitations of the Free Plan may hinder your progress.
  • If you need longer session durations for testing or extended access to local resources, the Free Plan’s session duration limit may become a limitation.
  • If custom subdomains or domain names are critical for your project or organization, upgrading to a paid plan is essential.
  • If you require priority support or advanced features like enterprise-grade security and compliance, the Pro Plan or Business Plan will be more suitable.

Ultimately, the decision to upgrade to a paid plan depends on your specific needs and the scale of your projects.

NGROK Free Plan Setup and Usage

Setting up and using the NGROK Free Plan is a straightforward process. Follow these steps to get started:

Creating an NGROK account

Go to the NGROK website and create a new account by providing the necessary details. Once your account is created, you will have access to the NGROK dashboard and be able to manage your tunnels and settings.

Downloading and installing NGROK

NGROK is available for download on the NGROK website. Choose the appropriate version for your operating system and follow the installation instructions provided. NGROK offers support for Windows, macOS, Linux, and other platforms.

Configuring and launching tunnels

To launch a tunnel, open a command prompt or terminal and navigate to the directory where you installed NGROK. Then, run the NGROK command followed by the desired port number:

ngrok http 3000

This command will create a secure tunnel to your local server running on port 3000. NGROK will generate a randomly generated subdomain that can be accessed via the NGROK server. The NGROK command will output the public URL that can be used to access your local server.

Monitoring and managing NGROK tunnels

To monitor and manage your NGROK tunnels, you can use the NGROK dashboard. It provides a visual representation of your tunnels and allows you to inspect the traffic passing through them. The dashboard also allows you to monitor the status of your tunnels and perform actions such as starting, stopping, or deleting them as needed.

Frequently Asked Questions (FAQs) about NGROK

Here are a few common questions that developers often ask about NGROK:

Can I use NGROK for production environments?

While NGROK is primarily designed for local development and testing, it is possible to use it in production environments. However, it is important to consider the limitations of the Free Plan and assess whether the paid plans offer the necessary features and support required for production use.

Is NGROK secure?

Yes, NGROK is secure. It uses TLS and SSL encryption to create a secure connection between the NGROK server and the NGROK client. This encryption ensures that data transferred through the NGROK tunnel is protected and cannot be intercepted by unauthorized parties.

Can I use NGROK with any programming language?

Yes, NGROK can be used with any programming language or framework that supports HTTP or HTTPS protocols. It is independent of the programming language used in the local server, making it compatible with a wide range of technologies.

How to secure NGROK tunnels?

NGROK tunnels are already secured using TLS and SSL encryption. However, there are additional measures you can take to enhance security, such as using strong and unique authentication tokens, restricting access to specific IP addresses, and configuring firewalls to allow only necessary traffic through the NGROK tunnel.


NGROK is a powerful tool that simplifies local development, testing, and sharing of local resources. It provides a secure way to create tunnels from the public internet to your local machine, enabling remote access and collaboration. While the Free Plan offers a great starting point with valuable features, there may be situations where upgrading to a paid plan becomes necessary to unlock additional capabilities. By understanding the limitations and evaluating your specific needs, you can make an informed decision on whether to upgrade to a paid plan. Whether you choose the Free Plan or a paid plan, NGROK is a versatile tool that can greatly enhance your development workflow.






Leave a Reply

Your email address will not be published. Required fields are marked *