Data Tools

Encode text to Base64 or decode Base64 back to text. Supports standard and URL-safe variants.

Convert CSV to JSON array or JSON array back to CSV. RFC 4180 compliant, handles quoted fields with commas.

Convert a CSV or tab-separated table to a 2D JSON array.

Percent-encode or decode URL components. Supports Component, Full URL, and Form (+) encoding variants.

Parse a query string into JSON, or stringify a JSON object to a query string.

Convert an image file to base64, a data: URI, or ready-made HTML, CSS, and Markdown snippets.

Paste a base64 string or data URI to preview, rotate, zoom, download, or print the image, or copy it as HTML, CSS, or Markdown.

Convert SVG markup to a URL-encoded or base64 data URI, ready to embed in CSS, HTML, or Markdown.

Look up the MIME type for a file extension, or the extension for a MIME type.

Convert a JSON array of objects to SQL INSERT statements. Supports MySQL, PostgreSQL, SQLite, and batch inserts.

Convert CSV data to SQL INSERT statements. Auto-detects column headers and infers data types.

Format, minify, or validate XML. Detects syntax errors with line and column numbers.

Convert XML to CSV. Auto-detects the repeating row element or specify a dot-notation path.

Run XPath 1.0 expressions against XML, returns matching elements, attributes, or text nodes.

Format, validate, or convert YAML to JSON. Detects duplicate keys and syntax errors.

Convert text to binary (0s and 1s) or decode binary back to text. UTF-8 aware.

Encode text to hexadecimal bytes or decode hex back to text. Supports space, comma, and 0x separators.

Convert internationalized domain names to Punycode (ACE) and back. Encode/decode individual labels or full domains.

Encode or decode Base32 in RFC 4648, Base32hex, Crockford, or z-base-32 variants.

Encode or decode Base58 using Bitcoin, IPFS, or Flickr alphabets.

Break a URL into its components: scheme, host, port, path, query parameters, and hash. Useful for debugging API endpoints and link structures.

Parse and validate .env files, or convert them to JSON, shell export statements, or docker run -e flags.

Convert TOML to YAML using a pure-TypeScript parser with no external dependencies. For the reverse direction, see YAML to TOML.

Validate CSV structure: check for consistent column counts, duplicate headers, empty headers, and infer column data types.

Convert YAML configuration to .env format or vice versa. Nested YAML keys are flattened with _ separators.

Extract tables from HTML and export as JSON, CSV, or Markdown. Handles rowspan/colspan and nested tags.

Extract all <meta> tags, <title>, Open Graph, Twitter Card, canonical links, and JSON-LD from an HTML document.

Validate XML well-formedness: check tag matching, unclosed tags, attribute quoting, and unescaped special characters.

Generate a CREATE TABLE SQL statement from a JSON object or CSV sample. Infers column types, adds id and timestamp columns.

Build a SELECT query visually: choose columns, add JOINs, WHERE clauses, GROUP BY, ORDER BY, and LIMIT.

Convert a JSON array to CSV with configurable delimiter and null handling.

Convert XML to JSON. Attributes are prefixed with @, text nodes use #text.

Convert XML documents to YAML format.

Remove whitespace and comments from XML to reduce file size.

Escape or unescape XML special characters: &, <, >, ", &apos;.

Convert YAML documents to JSON format.

Convert YAML configuration files to TOML format.

Generate SQL INSERT statements from CSV or JSON data with dialect support.

Convert between Tab-Separated Values and Comma-Separated Values.

Pick, reorder, and rename columns from a CSV file.

Parse INI / .properties files to JSON, or convert JSON back to INI format.

Parse a real .xlsx Excel file and export its sheets as JSON or CSV. Reads the actual binary spreadsheet format, not pasted text. 100% client-side.

Convert a JSON array of objects into a real, downloadable .xlsx spreadsheet with proper column headers. 100% client-side, nothing is uploaded.