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DEVELOPER BENCH
Apply transparent local pattern matching to a supplied User-Agent string and return a best-effort browser, rendering engine, operating-system, and device category.
WHAT THIS DOES
Runs entirely in your browser.
/tools/user-agent-parseruser-agent-parserv4.0.0LOCAL · LOCAL RUNIMPLEMENTED — This workbench is functional in the current release.Presets for this workbench
No preset yet. A preset stores the values in this form — never the result — and only for workbenches that run entirely in your browser.
Collections
Saved on this device only. Turn on sync to carry them to another device.
BATCH / ONE VALUE PER LINE
Up to 200 lines, one at a time, in this browser. Each line takes the place of userAgent and everything else stays as you set it. Nothing is uploaded, and the row limit is not exceeded silently.
METHOD / LOCAL RUN
Ordered regular-expression checks identify common Chromium, Firefox, Safari, Edge, Android, iOS, Windows, macOS, Linux, and bot markers.
Boundary: User-Agent strings can be spoofed, reduced, or ambiguous. This is not device detection certainty, fingerprinting, compatibility testing, or a remote request inspection tool.
The calculation or transformation runs in your browser using the values entered above. No input is sent to UtilityForge for this tool.
EXAMPLES / LOCAL RUN FIXTURES
FAQ
User-Agent strings can be spoofed, reduced, or ambiguous. This is not device detection certainty, fingerprinting, compatibility testing, or a remote request inspection tool.
No. This published tool runs locally in your browser. UtilityForge does not send the values entered in this workbench to a server.
No. This workbench runs in the page: User-Agent string are read by the code your browser already downloaded, and UtilityForge receives neither the values nor the result.
Yes, and it is enforced rather than advertised: User-Agent string (100,000 characters). The limit is a browser input limit on a tool that runs on this device, so nothing is truncated after being sent anywhere.
RELATED TOOLS
LOCAL — Runs entirely in your browser.
COMMON USE CASES / SOURCE NOTE
Last reviewed:
Source information: Transparent local regular-expression matching over supplied text; no network request, tracking, fingerprinting, or device-verification service is used.