Free browser developer utilities
Developer Tools
Format, convert, encode, decode, hash, and generate common development data.
Supported processing happens locally in your browser.
20 tools available.
JSON Formatter & Validator
Format, minify, and validate JSON.
Open tool ->URL Encoder & Decoder
Encode or decode URL components.
Open tool ->Base64 Encoder & Decoder
Encode UTF-8 text to Base64 or decode it.
Open tool ->UUID Generator
Generate random UUID version 4 identifiers.
Open tool ->QR Code Generator
Generate downloadable QR codes.
Open tool ->Password Generator
Generate secure random passwords with configurable character types.
Open tool ->Random Number Generator
Generate one or multiple secure random integers.
Open tool ->SHA-256 Generator
Generate a SHA-256 hash from text using Web Crypto.
Open tool ->Unix Timestamp Converter
Convert dates to Unix timestamps and timestamps back to dates.
Open tool ->JSON to CSV Converter
Convert arrays of JSON objects into CSV.
Open tool ->CSV to JSON Converter
Convert CSV data into formatted JSON.
Open tool ->XML Formatter
Validate and pretty-print XML.
Open tool ->SHA-1 Generator
Generate a SHA-1 digest from text using Web Crypto.
Open tool ->SHA-512 Generator
Generate a SHA-512 digest from text using Web Crypto.
Open tool ->HTML Encoder & Decoder
Encode HTML special characters or decode HTML entities.
Open tool ->JWT Decoder
Decode JWT header and payload data without verifying its signature.
Open tool ->Query String Parser
Convert a URL query string into formatted JSON.
Open tool ->Hex Text Converter
Convert UTF-8 text to hexadecimal or hex back to text.
Open tool ->Number Base Converter
Convert integers between binary, octal, decimal, and hexadecimal.
Open tool ->Regex Tester
Test JavaScript regular expressions against text.
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