Client-Side Developer Utilities
Developer Tools
Fast, privacy-focused utilities designed for software engineers. All operations run 100% locally in your browser — your tokens, keys, and data never leave your machine.
Zero Server Logging: All encoders, decoders, hash calculations, and formatters execute entirely in your web browser memory.
Data & Formatting
JSON Formatter & Validator
Prettify, validate, minify, and inspect JSON payloads with line numbers and error highlighting.
#json#formatting#api#validator
Security & Tokens
JWT Decoder
Inspect and decode JSON Web Token headers, payloads, and claims with token expiry analysis.
#jwt#security#auth#tokens
Generators
UUID v4 Generator
Generate cryptographically random UUID v4 identifiers in bulk with custom hyphenation and case.
#uuid#guid#identifiers#database
Security & Crypto
Hash Generator
Calculate MD5, SHA-1, SHA-256, and SHA-512 cryptographic digests in real time client-side.
#hash#crypto#sha256#md5
Encoding
Base64 Encoder & Decoder
Encode plain text or decode Base64 strings with live conversion and character counting.
#base64#encoding#ascii#binary
Date & Time
Unix Timestamp Converter
Convert Unix epoch timestamps to UTC, local dates, ISO-8601 strings, and relative time expressions.
#timestamp#epoch#date#time