How to Use
What is a User-Agent?
A User-Agent (UA) string tells a server which browser, operating system and device is making a request. DevToolBox parses any UA string into readable fields, and generates realistic UA strings for testing.
How to parse a UA
1. Open the Parse tab.
2. Paste a User-Agent string.
3. Click Parse.
4. Read the detected browser, OS, device type, device model and rendering engine.
How to generate a UA
1. Open the Generate tab.
2. Choose By Platform (Windows, macOS, Linux, Android, iOS or desktop) or By Device Brand (Apple, Samsung, Huawei, Xiaomi and more).
3. Pick the number of results: 1, 5 or 10.
4. Copy individual items or all results.
Tips
- Real model names are used for phones, such as iPhone 15 Pro or Galaxy S24.
- Version numbers come from realistic ranges.
- Parsing is useful for analytics, server logs and troubleshooting.
Privacy
Parsing and generation run entirely in your browser.