Web, Network & SEO
Developer and webmaster tools: JWT, Base64, UUID, timestamps, SEO metadata, subnet calculation.
Developer tools
Base64 Encoder and Decoder
Encode text (UTF-8, Arabic, emoji) or a file to Base64, decode it to text or a downloadable file, with URL-safe variant, no padding, MIME line breaks and data: prefix.
Web, Network & SEOComputer and mobile
UUID Generator
Generate up to 1,000 UUIDs v4, v7 (timestamped, sortable), v1, v5 or v3 in one click, with format options, and inspect any UUID to read its version, variant and date.
Web, Network & SEOComputer and mobile
Color Converter
Convert a colour between HEX, RGB, HSL, HSV, CMYK, Lab, LCH, OKLab and OKLCH by pasting any format, with CSS name, WCAG contrast, shades and harmonies.
Web, Network & SEOComputer and mobile