Formatters, validators, encoders, decoders, crypto hashes, and developer utilities.
Format, validate, beautify, and inspect JSON data with custom indentation.
Encode and decode text, strings, and files to and from Base64 format with live UTF-8 conversion.
Encode and decode URLs and query string parameters with RFC 3986 percent-encoding.
Generate cryptographically secure Version 4 (v4) UUIDs in bulk.
Convert Unix epoch timestamps (seconds and milliseconds) to human-readable dates and UTC times.
Test regular expressions with real-time match highlighting, flags, and group capture.
Decode JSON Web Tokens (JWT) to inspect header, payload claims, and expiration dates.
Generate cryptographic hash digests (MD5, SHA-1, SHA-256, SHA-512) for text strings.
Generate cryptographically strong, uncrackable passwords with custom character sets.
Build and explain standard 5-part cron schedules in plain human language.
Convert special characters into HTML entities (`&`, `<`, `"`) and vice versa.
Parse browser user-agent strings to detect browser name, version, OS, and device type.
Convert tabular CSV files into JSON objects and JSON arrays into CSV spreadsheets.
Format, indent, and beautify ugly SQL queries into clean, standardized statements.
Convert cURL commands into JavaScript fetch, Axios, and Python requests code.
Write Markdown with real-time rendered HTML preview and export to HTML or .md.
Convert numbers between Binary, Octal, Decimal, and Hexadecimal representations.
Generate strong, memorable Diceware-style passphrases using Web Cryptography API.
Create instant wa.me WhatsApp direct chat links with custom pre-filled messages and scannable QR codes.
Convert spreadsheets between XLSX, CSV, TSV, JSON, HTML Table, and XML.
Convert PowerPoint (.pptx) to interactive HTML web presentations, PDF, and Markdown.
Convert AutoCAD 2D Drawing Exchange Format (.dxf) to SVG, PDF, and PNG.
Compress and pack multiple files into a standard ZIP archive online privately.
Inspect, preview, and extract files from ZIP archives directly in your browser without software.
Generate standard Code 128, Code 39, and EAN-13 barcodes with PNG, SVG, and PDF export.