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🔐 Security & Developer
All 20 tools from the supplied category code, each implemented as a separate standalone HTML page with embedded CSS and JavaScript.
1. Password GeneratorGenerate secure random passwords with customizable length and character sets.
2. Password Strength CheckerEstimate password strength locally.
3. UUID GeneratorGenerate UUID v4 identifiers instantly.
4. Hash GeneratorGenerate SHA-256, SHA-384 and SHA-512 hashes from text.
5. SHA-256 GeneratorGenerate SHA-256 hashes from text.
6. MD5 GeneratorGenerate MD5 hashes locally with embedded JavaScript.
7. Base64 EncoderEncode UTF-8 text into Base64.
8. Base64 DecoderDecode Base64 text into UTF-8.
9. JSON FormatterPretty-print and validate JSON.
10. JSON ValidatorValidate JSON and show errors.
11. JSON MinifierMinify valid JSON.
12. HTML FormatterFormat HTML with readable indentation.
13. CSS FormatterFormat CSS with readable indentation.
14. JavaScript FormatterApply simple readable indentation to JavaScript.
15. Regex TesterTest regular expressions against sample text.
16. JWT DecoderDecode JWT header and payload locally.
17. Unix Timestamp GeneratorConvert dates and Unix timestamps.
18. Color ConverterConvert HEX, RGB and HSL colors.
19. HEX RGB ConverterConvert HEX colors and RGB colors.
20. Code Line CounterCount total, non-empty and comment-start lines.