DevTools Hub - Free Online Developer Tools

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JSON Formatter

Format, minify, and validate JSON data with syntax highlighting

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Base64 Encoder/Decoder

Encode and decode Base64 strings with Unicode support

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Regex Tester

Test regular expressions in real-time with match highlighting

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Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa

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URL Encoder/Decoder

Encode and decode URLs with proper character handling

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Color Picker

Advanced color picker with HEX, RGB, and HSL format support

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Hash Calculator

Calculate MD5, SHA1, and SHA256 hash values

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QR Code Generator

Generate QR codes from text and URLs instantly

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Markdown Preview

Real-time Markdown editor with live preview

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Password Generator

Generate secure random passwords with customizable options

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Unicode Converter

Convert between Unicode characters and entity encoding

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Image to Base64

Convert images to Base64 encoded strings

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