Web Design:
Bidirectional PX - REM converter
With our free online tool, you can easily convert pixels (px) to REM and vice versa in real time. Useful for responsive web design, CSS styling, and resizing. Fast, accurate, and free.
Tools
Collection of publications tagged with tools.
Text Formatting:
Text case converter
Free online text case converter that transforms text between uppercase, lowercase, title case, sentence case and more. Useful for everyone who needs proper text formatting.
CSS Selectors:
CSS specificity calculator
CSS specificity calculator that shows how browsers prioritize styles. Enter any selector to see its specificity score for ID, class, and type selectors.
Data Conversion:
CSV to JSON converter
Online CSV to JSON converter. Convert CSV data to clean JSON in your browser with options for array, hash, or minified output. No data upload required - works entirely in your browser.
Text Sanitation:
Duplicate line removal tool
Tool to remove duplicate lines from text with optional sorting. Quickly clean and organize your text by removing duplicates and sorting alphabetically, by ASCII value, or in reverse order.
Character Encoding:
HTML entity encoder and decoder
Easily encode and decode HTML entities with this online tool. Supports named entities from the W3C HTML5 spec plus 106 special characters, including arrows and currency symbols.
Text Analysis:
Realt-time text counter
A free online tool to analyze your text in real-time. Count words, characters, sentences, and lines. Find the longest word, track sentence length, and estimate reading time.
Web Development:
Web development validation and testing tools
Online validation and testing tools for web developers. Learn which tools you need to validate HTML, CSS, JavaScript, security, and accessibility (a11y) in your web projects.
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