Developer Tools
Format data, encode values, generate hashes and inspect developer formats locally. 43 tools are currently live in this section.
JSON Formatter
Pretty-print valid JSON with readable indentation.
Open tool →JSON Minifier
Validate and minify JSON into compact one-line output.
Open tool →JSON Validator
Validate JSON syntax and report the first parsing error.
Open tool →JSON to CSV
Convert an array of JSON objects into CSV with escaped headers and values.
Open tool →CSV to JSON
Convert CSV with a header row into an array of JSON objects.
Open tool →XML Formatter
Format valid XML with readable indentation in the browser.
Open tool →XML Validator
Check XML syntax and report parser errors.
Open tool →Base64 Encoder
Encode UTF-8 text to Base64 locally in your browser.
Open tool →Base64 Decoder
Decode Base64 into readable UTF-8 text locally.
Open tool →URL Encoder
Percent-encode text safely for use inside a URL.
Open tool →URL Decoder
Decode percent-encoded URL text into readable characters.
Open tool →HTML Entity Encoder
Escape HTML special characters into safe entities.
Open tool →HTML Entity Decoder
Decode HTML entities back into readable text.
Open tool →MD5 Generator
Generate an MD5 digest locally for checksums and legacy compatibility.
Open tool →SHA-1 Generator
Generate a SHA-1 digest locally using browser cryptography.
Open tool →SHA-256 Generator
Generate a SHA-256 digest locally using Web Crypto.
Open tool →SHA-512 Generator
Generate a SHA-512 digest locally using Web Crypto.
Open tool →UUID Generator
Generate one or many RFC 4122 version 4 UUIDs securely in your browser.
Open tool →Unix Timestamp Converter
Convert Unix epoch timestamps to local date/time and dates back to Unix seconds.
Open tool →JWT Decoder
Decode JWT header and payload locally without sending the token anywhere.
Open tool →Regex Tester
Test a JavaScript regular expression against text and inspect all matches.
Open tool →Cron Expression Generator
Build a standard five-field cron expression from minute, hour, day, month and weekday values.
Open tool →Query String Parser
Parse a URL query string into keys and decoded values.
Open tool →Text to Binary
Convert UTF-8 text into 8-bit binary bytes.
Open tool →Binary to Text
Convert space-separated 8-bit binary bytes into text.
Open tool →Binary to HEX
Convert a binary number into hexadecimal.
Open tool →Binary to Decimal
Convert a binary number into decimal.
Open tool →Binary to ASCII
Convert 8-bit binary byte values into ASCII text.
Open tool →HEX to Text
Convert hexadecimal byte values into text.
Open tool →HEX to Decimal
Convert a hexadecimal number into decimal.
Open tool →HEX to Binary
Convert a hexadecimal number into binary.
Open tool →Text to HEX
Convert UTF-8 text into hexadecimal bytes.
Open tool →Text to ASCII
Convert text characters into numeric character codes.
Open tool →ASCII to Binary
Convert numeric ASCII codes into 8-bit binary values.
Open tool →ASCII to Text
Convert numeric ASCII codes into text characters.
Open tool →Decimal to Binary
Convert an integer from decimal to binary.
Open tool →Decimal to HEX
Convert an integer from decimal to hexadecimal.
Open tool →Decimal to Octal
Convert an integer from decimal to octal.
Open tool →URL Parser
Parse a URL into protocol, host, port, path, query string and fragment components.
Open tool →IPv4 to Integer
Convert a valid IPv4 address into its unsigned 32-bit integer representation.
Open tool →Integer to IPv4
Convert an unsigned 32-bit integer into dotted-decimal IPv4 notation.
Open tool →CIDR Subnet Calculator
Calculate IPv4 network, broadcast, netmask and usable host range from an address and CIDR prefix.
Open tool →JSON Sort Keys
Recursively sort object keys in valid JSON and output a consistently formatted result.
Open tool →About Developer Tools
Format data, encode values, generate hashes and inspect developer formats locally. MediaZuno groups closely related utilities together so you can move between tasks without hunting across different websites.