Konvertio is a free collection of 136+ free online developer tools including encoders, formatters, generators, and converters. All tools run directly in your browser with no data sent to servers.

Is Konvertio free to use?

Yes, all tools on Konvertio are completely free. No signup, no account, no limits.

Absolutely. All tools run entirely in your browser. Your data never leaves your device — nothing is sent to any server.

What tools does Konvertio offer?

Konvertio offers 136+ free online developer tools across 5 categories: Encoders & Decoders (Base64, JWT, URL encoding, hashing), Formatters & Linters (JSON, SQL, CSS, XML, YAML), Generators (passwords, UUIDs, QR codes, Lorem Ipsum), Converters (JSON↔YAML, HTML→JSX, units, colors), and Text Tools (diff checker, word counter, regex tester, markdown preview).

Do I need to create an account?

No. Konvertio requires no signup, login, or account creation. Just visit and start using any tool instantly.

User Agent Parser

Parse user agent strings to identify browser, OS, engine, device type, and bot status.

User Agent String

Enter a user agent string above to parse it.

Frequently Asked Questions

A user agent string is a text identifier that browsers and applications send with every HTTP request. It contains information about the browser, rendering engine, operating system, and device type. Servers use this to deliver optimized content.

This parser uses regex patterns to identify common browsers (Chrome, Firefox, Safari, Edge, Opera), operating systems (Windows, macOS, Linux, Android, iOS), and rendering engines (Blink, Gecko, WebKit). It handles the vast majority of user agent strings but may not identify very obscure or custom agents.

Yes. The parser checks for common bot identifiers like Googlebot, Bingbot, Baidu Spider, Yandex, and many other well-known crawlers. If a bot is detected, it's shown in the results along with the bot name.

User agent strings accumulated complexity over browser history. Early browsers added identifiers of other browsers for compatibility, leading to long strings. For example, Chrome includes 'Mozilla/5.0', 'AppleWebKit', and 'Safari' for historical compatibility reasons.

This button fills the input with your current browser's user agent string (from navigator.userAgent). This lets you quickly see what information your browser reveals about your system.