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Remove comments and excess whitespace from JS/CSS/HTML
Validate, pretty-print or minify JSON with error line:col reporting
Convert Unix timestamps to dates, auto-detect seconds/milliseconds
Convert text to/from Base64, handles Unicode correctly, URL-safe mode
URL encode/decode supporting both component and full URI modes
Online regex tester with group highlighting and match details
Batch generate UUID v4 unique IDs using cryptographic random
Chinois与 Unicode 转义序列互转，处理配置Fichier中的转义Caractère
Decode JWT tokens to view header, payload, signature, and expiry