Free online URL encoding and decoding tool. Supports percent-encoding for Chinese, special characters, and URL parameters. Quickly convert, copy, and parse URL data.

Free online hash generator tool supporting multiple hash algorithms like MD5, SHA-1, SHA-256, SHA-512, etc., for use cases such as data integrity verification and password storage.

Free online JSON formatter and minifier tool. Supports JSON beautifying, minifying, syntax validation, and error checking to improve development efficiency.

Free online regular expression testing tool that supports real-time match testing, replacement previews, syntax highlighting, and provides common regex templates and detailed match analysis.

Free online color conversion tool that supports mutual conversion between various color formats such as HEX, RGB, HSL, and HSV. It provides a color picker, color palette, and color preview functions.

Free online text case converter tool that supports various text format conversions like all uppercase, all lowercase, camel case, snake case, etc., improving programming and document processing efficiency.

Free online timestamp conversion tool that supports mutual conversion between Unix timestamps and human-readable time, with multi-timezone support. Suitable for scenarios like API development and log analysis.

Online base converter tool for conversions between binary, octal, decimal, and hexadecimal. Real-time and easy to use.

A professional text statistics tool that provides real-time counts of characters, words, lines, and paragraphs. It supports statistics for selected text and estimates reading time.

Online HTML entity encoder and decoder tool, supports converting special characters to HTML entities to ensure safe display of web content.

Free online secure password generator. Supports custom length, character sets, password strength detection, batch generation, and other features to protect your account security.

Free online QR code generator that supports various formats like text, URL, email, and phone. Customize size and color, generate and download with one click.

Free online unit converter tool that supports mutual conversion of various units such as length, weight, temperature, area, volume, speed, and data storage.

Free online UUID/GUID generation tool that supports multi-version generation, batch generation, format conversion, and validation. Suitable for databases, APIs, and distributed systems.

Free online Base64 encode and decode tool, supports text, image, URL, and other formats. Quickly convert, copy, and parse Base64 data.

Morse Code is an encoding system that uses short and long signals (usually 'dots' and 'dashes') to represent letters, numbers, and some punctuation marks.

Convert Arabic numerals to Chinese uppercase, supporting regular numbers and amount formats