Data Formats
JSON, CSV, YAML, XML and friends.
Binary to Decimal
Convert binary to decimal online. Paste any binary number, with or without spaces, and get the exact base-10 value instantly. Runs in your browser.
Binary to Hex
Convert binary to hexadecimal online. Paste a binary number and get exact hex, with optional uppercase. Handles huge values. Runs in your browser.
Binary Translator
Translate text to binary and binary back to text online. UTF-8 accurate, handles emoji and accents, with a copy button. Runs in your browser, nothing uploaded.
CSV to JSON
Convert CSV to JSON online. Turn spreadsheet rows into clean JSON objects or arrays, with smart number and boolean typing. Free tier plus API.
CSV to SQL
Convert CSV to SQL INSERT statements online. Set a table name, pick a delimiter, and get clean, ready to run inserts. Fast and runs in your browser.
CSV to TSV
Convert CSV to TSV online. Paste comma-separated data and get clean tab-separated output, with quoted commas handled. Runs in your browser.
CSV to XML
Convert CSV to XML online. Paste CSV and get clean XML with the header row as element names, quoted commas handled and special characters escaped. In browser.
Decimal to Binary
Convert decimal numbers to binary online. Type a whole number and get its base-2 value instantly, even for very large numbers. Runs in your browser.
Decimal to Hex
Convert decimal to hexadecimal online. Type any whole number and get the hex value instantly, with optional uppercase and 0x prefix. Runs in your browser.
Decimal to Octal
Convert decimal to octal online. Paste any non-negative whole number and get the exact base-8 value instantly. Runs in your browser.
Hex to Binary
Convert hex to binary online. Paste a hexadecimal value, with or without 0x, and get the binary output instantly. Optional 4-bit padding. Runs in your browser.
Hex to Decimal
Convert hex to decimal online. Paste a hexadecimal value, with or without a 0x prefix, and get the exact base 10 number. Runs in your browser.
HTML to Markdown
Convert HTML to clean Markdown in your browser. Headings, bold, italic, links, images, lists, blockquotes and code, with entities decoded.
INI to JSON
Convert INI config to JSON online. Paste an INI file and get clean, nested JSON with sections as objects. Runs entirely in your browser.
JSON to CSV
Convert JSON to CSV online. Paste an array of objects and get clean, spreadsheet-ready CSV with the right headers. Runs in your browser.
JSON to Kotlin
Convert JSON to Kotlin data classes online. Paste JSON and get typed data class declarations with inferred Int, Double, List and nested types. In browser.
JSON to PHP Array
Convert JSON to a PHP array online. Paste JSON and get a clean array() or short [] literal with correct nesting, quoting and types. Runs in your browser.
JSON to Python Dict
Convert JSON to a Python dict online. Paste JSON and get a valid dict and list literal with True, False, None and proper quoting. Runs in your browser.
JSON to SQL
Convert JSON to SQL INSERT statements online. Paste an array of objects, set a table name, and get ready-to-run INSERTs. Runs in your browser.
JSON to TOML
Convert JSON to TOML online. Paste a JSON object and get clean TOML with tables and arrays of tables. Runs in your browser, nothing is uploaded.
JSON to XML
Convert JSON to XML online. Paste JSON and get clean, indented XML with a custom root element. Special characters are escaped. Runs in your browser.
JSON to YAML
Convert JSON to YAML online. Paste JSON and get clean, readable YAML with 2-space indentation and no line wrapping. Fast, free and runs in your browser.
NDJSON to JSON
Convert NDJSON or JSONL to a JSON array and back online. Parses one object per line, skips blanks, and reports the line on a parse error. In your browser.
Properties to JSON
Convert Java .properties to JSON and back online. Parses key=value and key:value, comments, escapes and line continuations. Runs in your browser.
Spreadsheet for Big Data
Open and explore multi-GB CSV and Parquet files with millions of rows in your browser. Sort instantly, nothing uploaded. Powered by DuckDB-WASM.
SQL to JSON
Convert SQL INSERT statements to JSON online. Paste your inserts and get a clean JSON array of objects. Fast, free and private in your browser.
TOML to JSON
Convert TOML to JSON online. Paste a Cargo.toml or config file and get clean JSON instantly. Runs in your browser, nothing is uploaded.
TSV to JSON
Convert TSV to JSON online. Turn tab-separated rows into clean JSON objects or arrays, with smart number and boolean typing. Runs in your browser.
Unix Timestamp Converter
Convert a Unix epoch timestamp to a human date, or a date to a timestamp. Auto-detects seconds and milliseconds. Runs in your browser.
XML to JSON
Convert XML to JSON online. Paste XML and get clean JSON: attributes, repeated elements as arrays, CDATA and entities handled. Runs in your browser.
YAML to CSV
Convert YAML to CSV online. Paste a YAML list of records and get a clean CSV with a header row and the delimiter you choose. Runs in your browser.
YAML to JSON
Convert YAML to JSON online. Paste YAML and get clean, pretty-printed JSON with the indentation you choose. Runs entirely in your browser.