Tools
Practical utilities for FrontEnd development. All tools run in your browser—no installation required.
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Color Tools
Convert colors, generate palettes, and check WCAG contrast ratios
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Box Shadow
Generate CSS box-shadow values with live preview
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HTML Entities
Convert special characters to HTML entity codes
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JSON Formatter
Format, validate, and minify JSON data
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Base64
Encode and decode Base64 strings
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Unit Converter
Convert between px, rem, em, vh, vw, and %
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MIME Types
Look up MIME type definitions for file extensions
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ISO Language Codes
Reference ISO 639-1 standard language codes
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Symbols & Emojis
Browse and copy special symbols and emojis
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Client Data
View cookies, localStorage, and sessionStorage