Công cụ online miễn phí

6 công cụ miễn phí. Mọi phép tính chạy ngay trong trình duyệt.

All tools 6

Word Counter

Characters, words, lines and reading time.

JSON Formatter

Format or minify JSON with error position.

Convert text to and from Base64, UTF-8 safe.

Percent-encode or decode query strings.

Password Generator

Generate passwords locally; nothing is uploaded.

Contrast Checker

Contrast ratio and WCAG AA/AAA compliance.

Everything runs in your browser — nothing you type is uploaded.