User Agent Generator
Generate browser user-agent strings from a catalog of published operating-system versions for device and platform testing.
WebFreeLocal
Runs locally in your browser.
Generated user agents
Generated user agents
Choose a published operating-system version and generate a batch from real user-agent templates.
Key benefits
Everyday uses for User Agent Generator
Up to 500 generated values per batch
Text and JSON export
A focused task
Use generated strings in browser compatibility checks, test fixtures, and request-header simulations in environments you control.
What is this tool?
Create a batch of browser user-agent strings for testing layouts, platform checks, and request handling. Select an operating system, optionally narrow its version, and copy or download the result.
How to use it
Open the tool using the button above. All input and processing take place on the independent tool website.
Choose an operating system and version.
Set a quantity from 1 to 500 and generate the batch.
Copy the result or download it as text or JSON.
Check the result before downloading, copying or publishing it. Keep your original data.
Processing and supported inputs
How it works
The generator uses a locally maintained snapshot of released browser builds, limited by operating-system support. It deliberately includes full Chrome build numbers for testing, although modern Chrome normally hides them in its default User-Agent. OS and device tokens may still be reduced, so different selected OS versions can produce the same string. Safari uses its own format. No value is sent to a server.
Formats & compatibility
macOS, Windows, iOS, Android, and Linux patterns; text or JSON output; one to 500 values per batch.
Privacy and file processing
This is a product introduction page and does not accept or process tool input. The independent tool may process data locally or on a server. Review its processing and privacy notice before selecting files or entering sensitive data; its behavior has not been verified here.
PrivacyFree · Generated strings are representative test values, not a record of installed browsers or a guarantee of compatibility.
Frequently Asked Questions
Does changing a user agent change a browser's capabilities?
No. A user-agent string is only one request header. Test actual browser features and server behavior separately.
Continue to the tool
Open User Agent Generator to get started.