# User agent parser

> Estimate browser and platform details from a user agent.

[Open tool](https://www.toolcabana.com/ee/user-agent) · [Developer and data](https://www.toolcabana.com/ee/category/developer-and-data)

Tool ID: user-agent. Requested language: ee. Description language: en. Complete guide translation: no; untranslated sections use English.

## Overview (en)

User agent parser reads a user agent string and estimates the browser name and version, operating system, platform type and rendering engine, returned as JSON. Because browsers and bots can send any string they like, the result is an estimate rather than proof of the actual software or device.

## Supported tasks (en)

Estimate browser and platform details from a user agent.

## Steps (en)

1. Paste the source into the input editor, or load the built-in example.
2. Check the source format before running the operation.
3. Run user agent parser, review the output, then use the available copy or download controls.

## Settings

No additional settings.

## Limitations (en)

Text operations generally accept up to 2,000,000 characters. Individual parsers, generators and formulas apply additional limits shown by their controls.

## Example input

```text
Hello ToolCabana
```

## Privacy and connections (en)

This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.

## Questions (en)

### How do I find the browser from a user agent string?

Paste the user agent string and run the parser. The JSON output includes the browser name and version, the operating system, the platform type such as desktop or mobile, and the engine.

### Is user agent detection reliable?

Treat it as an estimate. User agent strings can be changed by browsers, extensions and scripts, so the parsed details describe what the string claims rather than the real device.

### Can I parse a user agent from my server logs?

Yes. Copy the user agent field from a log line and paste it in. The parser accepts any user agent text, not just the one sent by your current browser.

### Where is my input processed?

This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.

### What are the input limits?

Text operations generally accept up to 2,000,000 characters. Individual parsers, generators and formulas apply additional limits shown by their controls.

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- [URL parser](https://www.toolcabana.com/ee/url-parser)
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- [HTTP status reference](https://www.toolcabana.com/ee/http-status)
- [String escape unescape](https://www.toolcabana.com/ee/string-escape)