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Random User Agent Generator

Generate browser user agent strings. Free, private, and local-first.

Use Random User Agent Generator

Generate realistic browser user agent strings for parser and log tests.

Generated values are synthetic test data. Do not use them for deception, identity verification, fraud, account abuse, or real-world personal records.
Generated user agentsNo upload

Synthetic data is generated locally for development, QA, and demos.

Quick answer

Random User Agent Generator is a free online tool that helps you generate browser user agent strings. It runs in your browser, so you can work with development data, text, files, or generated output without creating an account.

About Random User Agent Generator

Random User Agent Generator helps you generate browser user agent strings. It is designed for focused local-first workflows where you need a quick result without creating an account or sending your input to a server.

Common uses include generating log data with user agent strings, testing user agent parsing logic, creating sample analytics data.

Use the examples, usage notes, FAQ, and related tools below when you need to compare formats, build sample data, validate inputs, or move into the next step of the same workflow.

What this tool does

Generate realistic browser user agent strings
Include Chrome, Firefox, Safari, and Edge agents
Bulk generate multiple user agents
Copy user agents for use in test data

How to use Random User Agent Generator

  1. 1

    Set the number of user agents to generate.

  2. 2

    Click Generate to create the list.

  3. 3

    Review the generated user agent strings.

  4. 4

    Copy the strings for log testing or parser validation.

Examples

Chrome

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36

Firefox

Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0

Use cases

  • Generating log data with user agent strings
  • Testing user agent parsing logic
  • Creating sample analytics data
  • Populating server logs for testing dashboards

Related workflow

After using Random User Agent Generator, many workflows continue with related tools for validation, conversion, cleanup, mock data, or final export.

Random IP Address Generator Regex Tester Random JSON Mock Data Generator

Privacy and usage notes

CodeVella tools are designed to run locally in your browser. Your input is not uploaded to a server, and no account is required.

Generated test data is intended for development, QA, demos, and safe internal workflows.

Frequently asked questions

Is my data uploaded?+

No. This tool is designed to run locally in your browser.

Do I need an account?+

No signup is required for CodeVella tools.

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