All Online Tools & Free Calculators

Convert JSON payloads into clean, human-readable YAML 1.2 format with custom indentation.

Decode Base64 and URL-safe Base64 encoded strings back into clean UTF-8 text.

Percent-encode special characters, spaces, and query parameters in URLs and web links according to RFC 3986 standards.

Decode percent-encoded characters, spaces, and query parameters in URLs and web links according to RFC 3986 standards.

Encode special characters into HTML entities to safely display raw code, prevent XSS vulnerabilities, and render reserved markup characters.

Decode named and numeric HTML entities (<, &, ') back into standard human-readable text and clean markup.

Inspect and convert text characters into Unicode code points (U+XXXX), character names, and escape encodings.

Convert text into ASCII character codes (decimal, hexadecimal, binary, and octal) and decode ASCII numbers back into text.

Convert plain text strings into hexadecimal (Base16) byte codes with customizable delimiter formatting.

Decode hexadecimal (Base16) byte strings back into human-readable plain text and UTF-8 characters.

Format, beautify, indent, and prettify complex SQL queries across multiple SQL dialects.

Format and beautify messy YAML configuration documents with consistent 2-space indentation, clean spacing, and structural alignment.

Live real-time GitHub Flavored Markdown (GFM) editor and previewer with syntax highlighting, tables, math formulas, and 1-click HTML export.

Convert GitHub Flavored Markdown into clean, well-structured, and sanitized HTML5 markup for websites and content management systems.

Convert HTML documents, web markup, and rich text into clean, human-readable GitHub Flavored Markdown (GFM) syntax.

Generate random, cryptographically secure 128-bit Microsoft GUIDs and UUID v4 identifiers with customizable braces and hyphens.

Calculate 128-bit MD5 cryptographic hash digests (32-character hexadecimal string) from text strings and passwords compliant with RFC 1321.

Calculate 160-bit SHA-1 cryptographic hash digests (40-character hexadecimal string) compliant with NIST FIPS 180-4 and Git object standards.

Calculate military-grade 256-bit SHA-256 cryptographic hash digests (64-character hexadecimal string) compliant with NIST FIPS 180-4.

Calculate ultra-secure 512-bit SHA-512 cryptographic hash digests (128-character hexadecimal string) compliant with NIST FIPS 180-4.

Calculate cryptographically signed Hash-Based Message Authentication Codes (HMAC) using SHA-256, SHA-512, and secret keys compliant with RFC 2104.

Decode and inspect JSON Web Token (JWT) Header, Payload claims, and expiration status.

Parse standard 5-field and 6-field cron expressions into plain English and calculate upcoming run dates.

Convert UNIX epoch timestamps to human-readable dates and format date strings into timestamps.