About ComUtil

Our Mission

ComUtil.com provides free, fast, and secure developer tools for everyday tasks. We believe that essential utilities like encoding, decoding, formatting, and data conversion should be accessible to everyone without registration, downloads, or hidden fees.

Our tools are designed with developers in mind: clean interfaces, keyboard shortcuts, and no unnecessary clutter. Whether you're debugging an API response, encoding data for transmission, or looking up IP information, ComUtil has you covered.

Privacy & Security

Your privacy matters. Most of our tools run entirely in your browser - your data never leaves your device. For tools that require server processing (like IP lookup or domain WHOIS), we don't store or log your queries beyond what's necessary for the service to function.

  • No registration required
  • No tracking of your tool usage
  • Client-side processing whenever possible
  • HTTPS encryption for all connections
Available Tools

Encoding & Decoding

  • Base64 Encoder/Decoder
  • URL Encoder/Decoder
  • Unicode Converter

Data Formatting

  • JSON Editor & Formatter
  • HTML Preview
  • Diff Checker

Generators

  • Hash Generator (MD5, SHA)
  • UUID Generator
  • QR Code Generator

Network Tools

  • IP Address Lookup
  • Domain WHOIS
  • SSL Certificate Info

Time & Date

  • Unix Timestamp Converter
  • Cron Expression Parser

Other Tools

  • JWT Decoder
  • Regex Tester
  • Color Converter
  • String Length Calculator
Keyboard Shortcuts

We support keyboard shortcuts for power users. Common shortcuts across tools:

Ctrl + Enter Execute primary action (Encode, Generate, etc.)
Ctrl + Shift + C Copy output to clipboard
Ctrl + Shift + F Format (in JSON Editor)
Contact

Have suggestions or found a bug? We'd love to hear from you.

Email: hwanico@gmail.com