Useful Online Tools for Developers

This site web is a set of free online tools for helping development.

When using a tool, your data are secured because they don't transit on a network. All the job is made locally in your browser.

If you encounter a problem, you can send it using this form explaining the nature of your bug.

If your have suggestions, need for a tool ? please use the contact form.

This web site will be regularly updated with new tools, so be sure to add this site to your bookmarks.

If you like this site and for helping to increase the popularity of this site and improve the content, please use "+1", "linkedn" and "Facebook Like" buttons.

Alexandre Brillant



- HTML formatter
- HTML tags glossary
- CSV to XML Converter
- XPath Tester
- Less to CSS Converter
- JavaScript, JSON, XML tester updated
- QR Code Generator
- Lorem Ipsum Generator


Hexadecimal to decimal converter online

Convert integer to hexadecimal or convert hexadecimal to integer


  • Convert easily until three decimal values to hexadecimal
  • Convert easily until three hexadecimal values to decimal
  • Useful for RGB conversion

RGB color converter online

Convert RGB values from integer to hexadecimal


  • Convert hexadecimal RGB Values to decimal values
  • Display your color

Less to CSS converter online

Convert LESS to CSS


  • Convert your LESS format to CSS
  • Easy copy/paste for usage

CSV to XML converter online

Convert CSV to XML


  • Convert your CSV document to XML
  • Can use the first line for columns name
  • Unescape column values

Base64 encoding/decoder online

Encode or decode a Base64 text


  • Encode your message to Base64 content
  • Decode your Base64 content to message
  • Easy copy/paste for usage

URL encoder/decoder online

Encode or decode URL parameters


  • Encode your text for URL parameters usage
  • Decode your URL parameters to text

CSS formatter online

Format CSS


  • Indent your CSS for readibility
  • Easy copy/paste for usage

JSON formatter online

Format JSon


  • Indent your JSON for readibility
  • Easy copy/paste for usage

SQL formatter online

Format SQL


  • Indent your SQL queries for readibility
  • Easy copy/paste for usage

XML formatter online

Format XML


  • Indent your XML document for readibility
  • Easy copy/paste for usage

HTML formatter online

Format HTML


  • Indent your HTML document for readibility
  • Easy copy/paste for usage

Lorem Ipsum generator online

Generate lorem ipsum


  • Generate Lorem Ipsum sequence for paragraphs
  • Generate Lorem Ipsum sequence for line
  • Adjust quantity

QR Code generator online

Generate a QR Code


  • Generate QR code for URL
  • Generate QR code for text

Password Generator online

Generate a password

  • Generate solid / strong passwords for your internet usage
  • Choose password length
  • Choose having Letters, Numbers, Punctuations

CSS minifier online

Minify CSS


  • Optimize your bandwidth
  • Obfuscate your CSS

JSON minifier online

Minify JSON


  • Optimize your bandwidth
  • Obfuscate your JSON message

SQL minifier online

Minify SQL


  • Reduce your SQL Database scanning
  • Optimize space for your stored procedures

XML minifier online

Minify XML


  • Optimize your bandwidth
  • Help your XML parser to work faster
  • Obfuscate your XML

MD5 Digest generator online

Generate MD5 Digest


  • Generate a standard MD5 digest
  • This is a not a crypter

JavaScript checker online

Test your JavaScript


  • JavaScript Syntax Coloration
  • JavaScript Real time syntax error
  • Test your JavaScript everywhere

JSON checker online

Test your JSON


  • JSON Syntax Coloration
  • JSON Real time Syntax error
  • Test your JSON everywhere

Regular Expression checker online

Test your regular expression


  • Test a regular expression easily
  • Case-insensitive option
  • Global match option
  • Replace by a group

XML checker online

Test your XML


  • XML Syntax Coloration
  • XML Real time Syntax error
  • Parse your XML for testing

XPath checker online

Test your xpath expression


  • Evaluate XPath for numbers
  • Evaluate XPath for booleans
  • Evaluate XPath for strings
  • Evaluate XPath for nodes