Developer Tools
A practical toolkit for developers: encode text, decode payloads, format JSON, convert CSV, inspect ASCII values, and switch between common number bases.
Base64 Encode
Encode text to Base64 instantly in your browser. Free online Base64 encoder with copy-friendly output. No signup required.
Base64 Decode
Decode Base64 to readable text instantly. Free online Base64 decoder with browser-only processing.
URL Encode
Encode URLs and query strings safely for browsers, APIs, and web forms. Free URL encoder.
URL Decode
Decode percent-encoded URLs and query strings instantly. Free online URL decoder.
HTML Encode
Convert reserved HTML characters into safe entities. Free online HTML encoder for snippets and text.
HTML Decode
Decode HTML entities back to readable text. Free online HTML entity decoder.
Unicode to Hex Converter
Convert Unicode text to hexadecimal code points instantly. Free browser-based Unicode converter.
Hex to Unicode Converter
Convert hexadecimal Unicode code points back to readable text. Free online hex to Unicode converter.
JSON Formatter
Format and pretty-print JSON instantly. Free browser-based JSON formatter with validation.
JSON Validator
Validate JSON syntax in your browser. Find JSON parse errors and format valid JSON instantly.
JSON Minifier
Minify JSON into compact one-line output. Free JSON minifier with browser-only processing.
JSON to CSV Converter
Convert JSON arrays to CSV instantly. Free online JSON to CSV converter for developer data.
CSV to JSON Converter
Convert CSV to JSON arrays instantly in your browser. Free online CSV to JSON converter.
Hex to Decimal Converter
Convert hexadecimal to decimal instantly. Free online hex to decimal converter with batch support and step-by-step explanation. No signup required.
Binary to Decimal Converter
Convert binary to decimal instantly. Free online binary to decimal converter with batch support and step-by-step explanation.
Hex to ASCII Converter
Convert hexadecimal to ASCII text instantly. Free hex to ASCII converter for byte strings, character codes, and encoded text.
Text to Binary Converter
Convert text to binary instantly. Free online text to binary converter for strings, ASCII characters, and plain text.