BrowserTools

Random User Agent Generator

Realistic browser user-agent strings

By Guga — BrowserTools maintainer, Tbilisi, Georgia Updated 2026-09-16
Free Private No uploads
What is Random User Agent Generator?

Twenty-four hand-picked strings cover desktop Chrome, Firefox, Safari and Edge on Windows, macOS and Linux, plus iPhone, iPad and two Android devices, Xbox, and one Googlebot entry for exercising crawler handling. Version numbers sit in the low-to-mid 120s, which is where Chromium and Firefox were when the list was assembled — treat them as a fixed catalogue, not as a live feed, because a UA list that silently updates stops being a stable test fixture. No duplicates is on by default, so a batch of twenty-four covers the whole set exactly once and anything beyond that returns fewer lines. Count goes to 50 for cases where repetition is the point.

Generate random, realistic user-agent strings across Chrome, Firefox, Safari, Edge and mobile browsers. Essential for testing bot detection, analytics and device-specific layouts.

Private Random User Agent Generator In Your Browser

Random User Agent Generator is processed locally with client-side JavaScript. Your files never touch a server, and there is no queue to wait in.

Step-by-Step

How to use Random User Agent Generator

1

Set How many? between 1 and 50.

2

Leave No duplicates ticked to sample distinct strings, or clear it to allow repeats.

3

Press Generate.

4

Copy the strings into your request headers, fixture or UA-parsing test.

Key Capabilities
  • 24 fixed strings covering Chromium, Firefox, Safari, Edge, Opera, Xbox, iOS, Android and Googlebot.
  • Windows, macOS and Linux desktop variants are all represented.
  • Duplicate-free output by default, so a run tops out at the 24 distinct strings on offer.
  • Count accepts up to 50, so repeats are available when a realistic traffic mix is the goal.
Common Use Cases
  • A backend developer populating an analytics funnel fixture needs a spread of desktop and mobile agents.
  • A scraping engineer checks how their own endpoint parses the mobile strings before testing at scale.
  • A QA engineer verifying crawler handling uses the Googlebot entry deliberately rather than relying on a real crawl.
Clear Answers

Frequently Asked Questions

Are these current browser versions?
They reflect the versions that were current when the list was built and are deliberately frozen. That is a feature for testing — a parser that works against version 125 in four years is more convincing evidence than one that keeps passing because the fixture moved.
Does this spoof my real user agent when I visit a site?
No. It only produces text in the output box. Changing the agent a browser sends is a different mechanism entirely, and this page does not touch it.
Is a bot detector going to be fooled by these strings?
Unlikely. Modern detection looks at header ordering, client hints, TLS fingerprints and behavioural signals, not the user-agent string alone, which is why these belong in fixtures and load tests rather than in any attempt at evading a check.