Data Tools
Convert, format, encode, decode and inspect structured data locally.
30 tools available
π All processing happens in your browser. No data is sent to any server.
Encoding & Bytes
Encode and decode Base64, hex, binary, URL and HTML entities. 7 tools
ASCII Tablereference
Look up ASCII values and convert between text, decimal, hex and binary
Base64 Encode / Decodeconverter
Encode and decode Base64, Base64URL, files and Data URIs
Binary Converterconverter
Convert text to binary byte groups or decode binary back to text
Encoding Converterconverter
Convert between text, hex, binary, decimal, Base64, ASCII and Unicode
HTML Entitiesconverter
Encode, decode and validate named, decimal and hex HTML entities
Hex Converterconverter
Convert text to UTF-8 hex bytes or decode hex back to text
URL Encode / Decodeconverter
Encode or decode URL percent-encoding with UTF-8 support
Structured Data
Convert and format JSON, CSV, XML and YAML. 9 tools
CSV to JSONconverter
Convert CSV or TSV to JSON with headers, delimiters and type detection
Data Converterconverter
Convert between JSON, CSV, XML and YAML with nested-data handling
JSON Formatterformatter
Format, validate and minify JSON with syntax highlighting
JSON to CSVconverter
Convert JSON arrays to CSV with delimiter and header options
JSON to XMLconverter
Convert JSON objects and arrays to well-formed XML
JSON to YAMLconverter
Convert JSON to readable YAML with proper indentation
XML Formatterformatter
Format, indent and validate XML documents
XML to JSONconverter
Parse XML and convert to JSON with attribute handling
YAML to JSONconverter
Parse YAML and convert to validated JSON
Hashes & Tokens
Generate and verify cryptographic hashes and password hashes. 9 tools
Argon2id Hashgenerator
Generate and verify Argon2id password hashes with configurable parameters
Bcrypt Hashgenerator
Generate and verify bcrypt password hashes with configurable rounds
Hash Suitegenerator
Hash text or files with MD5, SHA-1, SHA-256, SHA-512 and HMAC
PBKDF2 Hashgenerator
Derive and verify PBKDF2 password hashes with configurable iterations
scrypt Hashgenerator
Generate and verify scrypt password hashes with configurable N, r, p
Markup & Markdown
Convert between HTML and Markdown formats. 2 tools
HTML to Markdownconverter
Convert HTML to GitHub Markdown with tables, code blocks and links
Markdown to HTMLconverter
Render Markdown to HTML with GFM tables and syntax highlighting
Legacy Ciphers
Encode with Morse code and ROT13 cipher. 2 tools
Morse Codeconverter
Encode text to Morse code dots/dashes or decode back to text
ROT13converter
Apply ROT13 letter substitution β encode or decode with one click
Auth & Tokens
Decode and inspect authentication tokens. 1 tools
JWT Decoderinspector
Decode JWT headers, payloads and inspect token claims locally