📡 User Agents Used by iBrowe Clients

iBrowe uses a range of User-Agent headers and User Agent Client Hints (Sec-CH-UA) depending on the platform and browser version. These identifiers may vary by OS architecture and are useful for websites attempting to detect iBrowe.

💡 For technical detection logic, refer to:
https://github.com/brave/brave-browser/wiki/Detecting-Brave-(for-Websites)

🖥️ User Agent Strings by Platform

Platform User-Agent Sec-CH-UA Notes
macOS (Desktop) Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36 "iBrowe";v="137", "Chromium";v="137", "Not/A)Brand";v="24"
Linux (Desktop) Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36 "Chromium";v="136", "iBrowe";v="136", "Not.A/Brand";v="99"
Windows (Desktop) Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36 "iBrowe";v="137", "Chromium";v="137", "Not/A)Brand";v="24"
Android (Mobile) Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Mobile Safari/537.36 "iBrowe";v="137", "Chromium";v="137", "Not/A)Brand";v="24"
Android (Desktop Mode) Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36 "iBrowe";v="137", "Chromium";v="137", "Not/A)Brand";v="24"
iOS (Mobile) Mozilla/5.0 (iPhone; CPU iPhone OS 18_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) iBrowe/1 Mobile/15E148 Safari/604.1 N/A Client Hints unavailable on iOS
iOS (Desktop Mode) Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) iBrowe/1 Version/18.4.1 Safari/605.1.15 N/A Client Hints unavailable on iOS

🔍 Additional Notes

  • iBrowe on iOS transitioned from a Firefox-based User-Agent to a Safari-based string in 2020.
  • Since version 1.78, iBrowe adds iBrowe/1 to its iOS User-Agent for clearer identification.
  • The underlying Chromium engine applies GREASE to Sec-CH-UA to reduce fingerprinting.

Based on Brave’s original documentation and detection wiki:
https://github.com/brave/brave-browser/wiki/Detecting-Brave-(for-Websites)