Online Converters
Free browser-based tools for encoding, number systems, and everyday tasks. Work with Base64 and URL encoding, hexadecimal text, number systems, ASCII, Roman numerals, passwords, and hashes. Your input is processed locally in your browser.
All Converters
Security
Generate strong passwords and cryptographic hashes for your security needs.
Text Tools
Convert text to and from ASCII codes and browse the complete ASCII table.
Encoding & Decoding
Encode and decode Base64, URLs, and hexadecimal text instantly.
Number Systems
Convert between decimal, binary, hexadecimal, octal, and Roman numerals.
How to Use Our Converters
- Select a converter from the categories above
- Enter or paste the value you want to convert
- See the converted result instantly as you type
- Copy the result with one click
Frequently Asked Questions
What types of conversions are supported?
Available tools cover password and hash generation, ASCII, Base64 and URL encoding, hexadecimal text, number systems, and Roman numerals.
Are conversions done locally or on a server?
All conversions happen entirely in your browser using JavaScript — no data is ever sent to a server. This means your data stays private and conversions work even without an internet connection after the page loads.
Can I convert multiple values at once?
Many tools update results as you type. Text-based tools such as the ASCII, Base64, and URL converters also accept longer pasted input and convert it in one operation.
What number system and encoding converters are available?
Number system converters cover decimal, binary, hexadecimal, and octal, plus Roman numerals. Encoding tools cover Base64, URL encoding, hexadecimal text, and conversions between text, ASCII codes, binary, and hex.