Dev Tools — Free Online

JSON, Base64, QR codes, passwords and webmaster utilities.

Count words, characters, sentences and reading time instantly.

Encode text to Base64 or decode Base64 back to text.

Format, validate and minify JSON with error highlighting.

Generate strong, random passwords you can actually trust.

Create QR codes for links, text, Wi-Fi and more.

Convert HEX, RGB and HSL colors with a live preview.

Generate SEO meta tags for any webpage.