Antidetect Browser vs VPN, Proxy, and Incognito Mode: What's the Difference and Which Should You Choose?

Partner material: this article was prepared in collaboration with Aurorium.

Incognito mode helps prevent session data from being saved on your device. A proxy changes the IP address a website sees. A VPN encrypts the connection to the VPN server and also changes the visible IP. An antidetect browser lets you separate working profiles and manage their browser fingerprints. Let's examine what each tool does, what it cannot do, and when it makes sense to use it.

Four Tools, Four Different Tasks

The confusion comes from a common assumption that all four tools do the same thing, just with different levels of effectiveness. In practice, it is easier to start with the task itself:

1. Incognito mode: will information from this session remain in the browser's history and storage after the windows are closed?
2. Proxy: which IP address will the website see when you connect?
3. VPN: how can you protect your connection on an untrusted network, and which IP address will websites see?
4. Antidetect browser: how can you work with multiple separate browser profiles on one computer?

Websites may use several signals to recognize visitors:

• IP address;
• browser fingerprint: screen size, fonts, graphics hardware, time zone, language, and other parameters;
• cookies and local storage data;
• accounts users log in to.

None of these four tools eliminates every means of identification on its own. That is why their capabilities need to be evaluated separately and combined when appropriate.

Incognito Mode: What It Actually Does

When users close all incognito windows, the browser deletes browsing history, cookies, site data, and information entered into forms during that session. This is its primary function.

However, incognito mode does not change your IP address, create a new browser fingerprint, or encrypt your connection. If you log in to an account, the service still knows who has signed in.

Google explicitly warns that incognito mode does not change how websites collect information about visitors. Your activity may also remain visible to your employer, school, or internet service provider. Private browsing in Firefox has similar limitations.

Still, incognito mode is useful when using a shared computer, viewing a page without previously stored cookies, or quickly opening an additional login session.

Takeaway: incognito mode primarily provides local privacy. It is not a tool for comprehensive protection against website tracking or for separating multiple working profiles.

Proxy: Changing Your IP Without Isolating the Browser

A proxy server acts as an intermediary between an application and a website. As a result, the website generally sees the proxy's IP address instead of the user's original IP.

A proxy does not provide additional end-to-end encryption by itself: HTTPS connections remain protected by their own encryption. A proxy generally works within the configured application or browser and does not change its fingerprint, cookies, or authenticated sessions.

Proxies differ mainly in where their IP addresses come from and how they are typically used.

Residential and mobile proxies are often billed by traffic volume, while datacenter proxies are commonly billed by the number of IP addresses. The right choice therefore depends on both the task and the budget.

VPN: Connection Encryption and an IP Address Change

A VPN creates an encrypted tunnel between your device and the VPN provider's server. Websites generally see the VPN server's IP address.

Unlike a conventional proxy, a VPN's key function is protecting the connection between your device and the VPN server. This is particularly useful on networks you do not control, such as those in cafés, hotels, or airports. The contents of traffic inside the VPN tunnel are protected from inspection by others on the local network, while your internet provider generally sees that you are using a VPN but not the tunnel's contents.

Another use is connecting through a server in a different country. This can be useful when traveling, testing website localization, or checking how websites behave from another region. However, content availability may depend on more than an IP address, including the service's own terms.

VPNs have limitations. Websites can still access cookies and browser parameters, so changing VPN servers does not make you an entirely new visitor or isolate different accounts from one another.

The choice of provider also matters: a VPN provider sits in the path of your network connection, so its logging policy (including no-logs claims) and independent audits deserve attention.

Antidetect Browser: Isolating Working Profiles

An antidetect browser addresses a different need: it lets you organize multiple browser profiles with separate cookies, local storage, and browser fingerprint settings. Each profile can also have its own proxy.

This helps teams maintain separate working environments for different tasks:

• Agencies can separate client sessions, histories, and settings when managing advertising projects.
• Marketplace sellers can keep different storefronts in separate sessions where the platform's rules permit this.
• QA teams can test how websites behave with different screen sizes, operating systems, and language settings.
• Researchers can examine how websites personalize content for different browser environments.

For example, Aurorium antidetect browser is among the tools that allow browser profiles to be saved with individual proxy settings and reopened in a consistent working environment.

It is important to understand the limitations: an antidetect browser does not encrypt network traffic by itself and does not guarantee complete anonymity. Users may remain logged in within a profile, and websites can still record their actions. Separating profiles also does not override advertising networks' or marketplaces' rules on the number of permitted accounts.

Comparison: Incognito, Proxy, VPN, and Antidetect Browser

In short, a VPN protects the connection, while an antidetect browser helps separate browser environments. A proxy determines which IP address is used, and incognito mode manages the local data of a temporary session. These tools can complement one another, but they are not interchangeable for every task.

Which Tool Should You Choose for Your Task?

1. Using public Wi-Fi. A VPN is useful when you need to protect the connection to the VPN server on an untrusted network. Incognito mode does not offer this protection.

2. Managing multiple client projects. An antidetect browser helps separate clients' browser profiles; if needed, a stable proxy can be configured for each one. Before choosing this approach, check the platform's rules: official agency access and business manager tools, where available, are generally preferable.

3. Testing a website from another country. A VPN may work for individual use, while a proxy is suitable if only one browser or application needs the IP address from that location. Be mindful of the service's access conditions and regional licensing.

4. Collecting publicly available data. For permitted automated collection, datacenter or residential proxies can be used with appropriate tools. Browser profiles are useful when pages need to be rendered in a full browser. Follow the website's rules, respect robots.txt, limit request rates, and do not collect personal data without a lawful basis.

Checklist Before Choosing

Before adding another tool, answer four questions:

• What exactly needs to be protected or separated: local browser data, the network connection, or working profiles?
• Does the website need to see an IP address from a particular country?
• Will several team members work with the same accounts?
• Do the platform's rules permit the intended workflow?

Conclusion: no single tool is equally suited to every privacy, connection security, and profile management task. Start with the specific need, then choose incognito mode, a proxy, a VPN, or an antidetect browser — or combine them where it genuinely makes sense.