Browser Information

Browser environment helps support and debugging, but requires privacy care

Web pages can read some information exposed by the browser, such as User-Agent, language, timezone, API support and storage state. These values help debug compatibility, but can also contribute to fingerprinting when aggressively combined. This tool shows common information only and does not collect invasive signals.

Inspect the current environment without installing anything

1. Open the tool to automatically detect browser, system and available capabilities.
2. Copy the User-Agent if you need to send a technical report or reproduce a compatibility bug.
3. Use refresh after changing permissions, offline mode, storage or browser settings.

Sources and references for this tool

These references help contextualize formulas, standards, APIs and limitations used on this page. They do not replace professional validation when a result has legal, financial, medical or operational impact.

• User-Agent — MDN Web DocsMDN — Reference for the structure and limitations of the User-Agent header.
• User-Agent Client Hints API — MDN Web DocsMDN — Modern API for reducing dependency on the traditional User-Agent.
• Privacy considerations for web APIsMDN — Context for privacy, fingerprinting and browser capability exposure.

Frequently asked questions

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