Developer Tools Calculators
JSON, XML, encoding, regex, and other developer utilities. Free online developer tools calculators.
🔧 10 Free Calculators AvailableJSON Formatter & Viewer
Use our free JSON Formatter to format, validate, minify, and view JSON data with syntax highlighting and tree view. Per…
CalculateXML Formatter & Viewer
Use our free XML Formatter to format, validate, and beautify XML data with syntax highlighting and tree view. Perfect f…
CalculateBase64 Encoder & Decoder
Use our free Base64 Encoder/Decoder to encode text to Base64 or decode Base64 strings instantly. Perfect for developers…
CalculateURL Encoder & Decoder
Use our free URL Encoder/Decoder to encode or decode URL strings instantly. Handle special characters, query parameters…
CalculateHTML Entity Encoder & Decoder
Use our free HTML Entity Encoder/Decoder to convert special characters to HTML entities and back. Prevent XSS attacks a…
CalculateRegex Tester
Use our free Regex Tester to test and debug regular expressions with live matching, highlighting, and match details. Su…
CalculateColor Converter
Use our free Color Converter to convert colors between HEX, RGB, HSL, and other formats. Preview colors live and copy v…
CalculateLorem Ipsum Generator
Use our free Lorem Ipsum Generator to create placeholder text for web design, mockups, and layouts. Generate paragraphs…
CalculateHash Generator
Use our free Hash Generator to create MD5, SHA-1, SHA-256, and SHA-512 hashes from any text. Perfect for developers, se…
CalculateDiff Checker
Use our free Diff Checker to compare two texts side by side and find differences. Highlights additions, deletions, and …
CalculateFAQ – Developer Tools Calculators
Are these calculators free?
Yes, all calculators on DayAround are 100% free with no signup required.
Do the calculators work on mobile?
Yes, all calculators are fully responsive and work on any device.
How accurate are the results?
Our calculators use standard formulas and are tested for accuracy. Results are for informational purposes.