User Agent Switcher

Quickly and easily switch between popular user-agent strings.

UI provides an easy interface to access 26 user-agents.

Clicking on any UA, will change your browser's user-agent after inputting the new url in browser's address bar.

If you use web version you can simple select from 26 predefined UA strings and input any count of live urls for test how it's will look with useragent selected.

There is also an option to edit any useragent from the textbox.

You can save your test results on your local drive or Google Drive from web application.

Try our software now. Its 100% free to use, and you can access the test results onto your hard drive or Google Drive.

What is a User Agent?
Everyone that is browsing the web right now has a user agent. It’s the software that acts as the bridge between you, the user, and the internet. It’s easiest to understand user agents if we backtrack and look at the evolution of the web, so we can understand the benefits of user agents.

When the internet was a text-based system, right back at the beginning of its use, users had to type commands to navigate and send messages. Now, we have browsers to do that for us. We simply point and click, and the browser is acting as our “agent,” turning our actions into commands.

When your browser (or similar device) loads a website, it identifies itself as an agent when it retrieves the content you’ve requested. Along with that user agent identification, the browser sends a host of information about the device and network that it’s on. This is a really set of data for web developers, since it allows them to customize the experience depending on the user agent that’s loaded the page.

User Agent Types
Browsers are a straightforward example of a user agent, but other tools can act as agents. Crucially, not all user agents are controlled or instructed by humans, in real time. Search engine crawlers are a good example of a user agent that is (largely) automated — a robot that trawls the web without a user at the helm.