Hello world program

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JSON formatting/validation

Format, compress, validate JSON, mark error locations

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JSON Comparison

Semantic Comparison of Differences Between Two Segments of JSON

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Base64 Encoding/Decoding

Text to Base64 conversion (supports UTF-8)

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URL Encoding/Decoding

URL encoding and decoding (encodeURIComponent)

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Parse URL Parameters

Parse URL and query parameters, support encoding/decoding viewing

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Hash calculation

MD5 / SHA1 / SHA256 / SHA512