Developer Tools
A free, client-side developer tools suite. Every tool runs entirely in the browser — nothing is ever sent to a server.
JWT Tools
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Decode, verify, build, and stress-test JSON Web Tokens.
Included Tools (5)
DecoderValidatorGeneratorSecret GeneratorFuzzer
JSON Tools
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Format, validate, convert, diff, and query JSON.
Included Tools (11)
FormatterValidatorMinifierConverterSchema ValidatorPath FinderDiff ToolGeneratorSort KeysEscape / UnescapeTree Editor
Cryptographic Key Generators
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Generate signing key pairs, AES keys, and API keys.
Included Tools (3)
RSA/EC Key Pair Gen.Encryption Key Gen.API Key Generator
Encryption & Security Tools
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Encrypt and decrypt with AES-GCM or RSA-OAEP.
Included Tools (3)
Symmetric EncryptionAsymmetric EncryptionHash Generator
Password & Identity Tools
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Strong random passwords and UUID generation.
Included Tools (2)
Password GeneratorUUID Generator
Data Encoding & Formatting
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Base64, percent-encoding, and a regex tester.
Included Tools (3)
Base64 Encoder/DecoderURL Encoder/DecoderRegex Tester
Web Resources & Content Tools
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Placeholder text, URL parsing, and an HTML entities reference.
Included Tools (3)
Lorem Ipsum GeneratorURL ParserHTML Entities