Fast, privacy-friendly utilities for developers, data analysts, and engineers. Inspect, format, encode, and generate tokens securely.
Format, validate, beautify, and inspect JSON with clear syntax error diagnostics.
Compress and minify JSON data by stripping whitespace and newlines with size reduction metrics.
Encode and decode Base64 strings safely with full UTF-8 and multi-byte character support.
Encode and decode URLs and query strings, with interactive query parameter parsing.
Generate cryptographically secure Version 4 UUIDs / GUIDs in bulk with custom formatting.
Compute cryptographic hashes (SHA-256, SHA-512, SHA-384, SHA-1) using Web Crypto.
Generate custom QR codes for URLs, text, Wi-Fi, email, phone, SMS, and contacts with SVG & PNG download.
Generate all standard website favicon sizes, Apple touch icons, and HTML meta tags from any image.
Generate strong, cryptographically secure random passwords with entropy scoring and character filtering.
Resize PNG, JPEG, and WebP images directly in your browser with aspect ratio locking and quality control.
Compress JPEG, PNG, and WebP images locally in your browser to reduce file sizes without server uploads.
Convert Markdown to clean, sanitized HTML with live rendered preview, code blocks, tables, and download.
