Next-Gen App & Browser Testing Cloud
Trusted by 2 Mn+ QAs & Devs to accelerate their release cycles

Open this page in Safari and the checker reads your browser user agent, then names the Safari version and operating system it detected. Copy the result in one click for a bug report or a compatibility check. It is brought to you by TestMu AI (formerly LambdaTest), the team behind a unified software testing platform.
The Safari version checker is a free online tool that tells you which version of Safari you are browsing with. Open the page in Safari and it reads the user agent string your browser reports, then prints a single line such as Safari 17 on macOS, ready to copy.
The detection is handled by the ua-parser-js library, which splits the user agent into browser and operating system fields, and by User-Agent Client Hints for the operating system in browsers that expose them. Because it works from the string your browser sends rather than from the installed application, it is user agent detection rather than an inspection of the app itself.
Safari is tied to the operating system it ships with, so a version number carries more information than it does on other browsers. These are the reasons the number is worth knowing:
There is nothing to configure and nothing to submit. The check runs the moment the page loads, so getting your answer takes a few seconds:
When you need the full point release rather than the major number, Safari and the operating system both report it directly. Here is where to look on each platform:
As a tool, the Safari version checker keeps the job to one screen and one line of output. Here are the features of our checker:
The checker reads the identity string your browser sends rather than inspecting the installed application, and that distinction explains most surprising results. Keep these limits in mind:
This checker is maintained by TestMu AI (formerly LambdaTest), which is why the copy is careful about what a user agent string can genuinely prove. To see the full string behind the result, open What Is My User Agent, or break it into fields with the User Agent Parser.
Open this page in Safari and the panel at the top names your Safari major version and operating system, for example Safari 17 on macOS. The detection runs automatically as the page loads, so there is no button to press and nothing to install.
It parses the user agent string your browser reports, using the ua-parser-js library, and adds User-Agent Client Hints for the operating system where the browser exposes them. Safari does not send Client Hints, so its result comes from the user agent string alone.
The panel prints the major version number, so Safari 17.4.1 and Safari 17.6 both appear as Safari 17. Open the Safari menu and choose About Safari on a Mac when a bug report or compatibility check needs the exact point release.
Partly. If you open the page in Chrome, Firefox, or Edge, the tool names the browser and the operating system it detected but does not print a version number for it. Use a dedicated browser checker when you need the version of a non Safari browser.
Safari on iPadOS identifies itself as a desktop Mac by default, and the Request Desktop Website setting keeps that behaviour. The tool reports what the user agent claims, so an iPad can show macOS. Check Settings, General, then About for the real iPadOS version.
Yes, because a user agent string is a claim rather than proof. Developer tools, browser extensions, privacy settings, and desktop site modes can all change the reported values. Treat the result as a strong hint and confirm through About Safari when accuracy matters.
Yes. Open the page in Safari on an iPhone or iPad and the same detection runs, naming the Safari major version and the operating system reported by the device. The copy button works on mobile as well, which helps when filing a bug from a phone.
Safari ships with the operating system. On a Mac, open System Settings, then General, then Software Update and install the latest macOS release. On an iPhone or iPad, open Settings, then General, then Software Update to get the newest Safari with it.
Yes. The checker is completely free with no signup, no download, and no limit on how many times you run it. It is maintained by TestMu AI (formerly LambdaTest) as part of a wider set of free browser and developer utilities.
Did you find this page helpful?
TestMu AI forEnterprise
Get access to solutions built on Enterprise
grade security, privacy, & compliance