Intranet vs Extranet vs Internet: What’s the Difference?

They may sound similar, give or take a couple of letters, but intranets, extranets and the internet fulfill very different roles in the way we connect, share information and work.

The internet is the vast, open network we all rely on daily. An intranet is a private space designed for employees inside an organization. And an extranet sits somewhere in between, providing a secure environment where businesses can safely collaborate with partners, suppliers or customers.

Understanding the differences isn’t just a matter of terminology. Choosing the right platform impacts everything from security and compliance to productivity and collaboration.

Let’s break down what each one does, how they differ, and which option best fits your business needs.

Internet explained

So, we all know about the world wide web. The internet is the global system of interconnected networks that anyone can access. From communication, e-commerce, research, cloud services and entertainment, the internet underpins pretty much everything in modern society. What did we do without it?

  • Open and public: anyone with a connection can access it.
  • Unlimited reach: connects billions of people, devices and organizations worldwide.
  • Business uses: websites, online services, digital marketing, cloud apps, customer engagement.

While it’s the backbone of connectivity, its openness can be risky. Sensitive information isn’t safe to share over the open internet without the right safeguards in place.

Intranet explained

An intranet is like a micro internet, reserved for employees within a specific organization. It provides a central hub where employees can access information, collaborate and stay connected.

  • Access: restricted to employees (or authorized users) within the organization.
  • Uses: keeping up with company news, storing documents and policies, onboarding materials, team collaboration, HR resources.
  • Benefits: better communication, stronger employee engagement, improved productivity.

Modern intranets, such as Fresh built on SharePoint, go further: they integrate with tools like Teams and Viva Connections, making it easier for employees to find what they need and work efficiently.

Extranet explained

An extranet is like an intranet but with controlled access for external stakeholders. That means collaboration can be extended beyond employees to include partners, suppliers or customers.

  • Access: limited to approved third parties alongside employees.
  • Uses: supply chain management, joint project work, sharing sensitive documents securely.
  • Benefits: closer collaboration, reduced reliance on email for comms, improved trust and transparency with external partners.

Extranets give you the convenience of working openly with others while maintaining control and security over who sees what.

Internet vs intranet vs extranet: How they compare

How they compare 
Internet
Intranet
Extranet
How accessible?
Open to anyone with a connection.
Only for people inside your organization.
Internal people plus selected external partners, with controlled access.
Who's it for? 
Anyone, anywhere with a connection. 
Just people in your organization. 
A mix of your team and trusted outsiders. 
How secure is it?
Varied. Encryption, firewalls and secure connections help. 
Strong access controls, authentication and encryption.
Adds permissions and role-based access, so the right people see the right things. 
What it's best for?
Everyday communication, research, e-commerce, entertainment.
Company news, collaboration, knowledge sharing, workflows.
Project work, secure data exchange, supplier and client interactions. 

Internet, intranet, extranet: what sets them apart?

It’s easy to get the terms mixed up, but each network type has a clear role to play.

Internet: Open to anyone, anywhere. Best for public-facing services like your website, online marketing, or e-commerce. Real life use case: a retail brand using its website to reach customers worldwide.

Intranet: Internal and secure. Ideal for keeping employees connected with company news, policies and collaboration tools. Real life use case: a business rolling out Fresh Intranet so employees can find everything they need in one central hub.

Extranet: Controlled access for trusted outsiders. Useful for sharing data or working on projects with suppliers, partners or customers. Real life use case: a construction company creating a secure extranet for its contractors and project stakeholders.

Choosing the right one depends on your audience: go public with the internet, keep things in-house with an intranet or create a secure bridge with an extranet.

Making the right choice for your organization

Internet, intranet and extranet may sound alike, but they serve very different purposes. The internet connects you to the world. An intranet keeps your employees connected internally. An extranet bridges the gap with your external partners.

The right choice depends on who you need to collaborate with and how secure that collaboration needs to be.

Take a Fresh approach to your intranet

If you’re looking to ditch your dusty old intranet for a modern solution, Fresh Intranet combines the familiarity of SharePoint and Microsoft 365 with a customizable and user-friendly design, giving your people a secure place to connect, communicate and do their best work.

FAQs about internet vs intranet vs extranet

What is the main difference between internet, intranet and extranet?

Internet = interconnected networks, meaning it’s open and public.

Intranet = intra – Latin for within, meaning it’s private, internal only.

Extranet = extra or in addition, meaning it’s private but shared with additional trusted external parties.

Is an intranet more secure than an extranet?

Generally yes, because access is limited to employees only. However, a well-managed extranet is still highly secure with the right access permissions in place.

How are the different networks used in business?

Internet: customer-facing sites and services

The internet is the shopfront of any modern business. Companies use it to host their websites, run e-commerce platforms, deliver online services and market to global audiences. It’s how customers find you, learn about your brand and interact with your products or services.

Intranet: employee communication and collaboration

An intranet provides a private, central hub for employees. It’s where people read company news, access HR policies, share documents, and collaborate across departments. Modern intranets, like Fresh (built Microsoft 365 and SharePoint), make teamwork smoother and information easier to find.

Extranet: supplier and customer collaboration

An extranet extends the intranet model to trusted third parties. It’s often used to share data securely with suppliers, partners or clients, for example, a customer portal where clients can log in to track orders, or a supplier site where vendors can access forecasts and invoices. Extranets streamline external collaboration while keeping sensitive information secure.

Can an intranet become an extranet?

Yes, by extending access permissions to trusted third parties.

Ready to take a Fresh approach with your employee intranet?

Contact our team