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A simple text encryption and decryption tool for convenient information protection
Encode text or files to Base64 format, or decode Base64 strings
Convert text to MD5 hash value, supports uppercase or lowercase output
Generate and parse JSON Web Tokens with support for multiple algorithms
Generate RSA public and private keys with support for various key lengths
Encode or decode non-standard characters in URLs using ASCII mapping
Validate JSON data format with formatting and error hints
Compress JSON data into a compact one-line format to save space
Convert between YAML and Properties formats to simplify configuration file management
Compress XML data to optimize loading, or format for readability
Format SQL statements to improve code readability, maintainability and comprehension
Format and validate SQL DDL statements, supports multiple databases
Compress CSS code to optimize loading, or format for readability
Convert between camelCase and snake_case, supports various formats
Bidirectional conversion between Chinese and Unicode characters
Convert between timestamp and readable datetime, supports multiple formats
Easily generate and manage Crontab schedule expressions with real-time preview
View monthly calendar data including dates and solar terms anytime, anywhere
A simple and easy-to-use timer tool with counter and countdown functions
Generate simple QR codes or decode QR code images, very easy to use
Test if regular expressions can accurately match, extract or replace strings
Quickly count characters, words and lines in text, suitable for writing and programming
Quickly get your public IP address or query IP address location information
Generate v1, v3, v4, v5 and NIL versions of UUID for different scenarios
Generate random passwords with numbers, letters and special characters
Calculate the modulo of two numbers, i.e., the remainder of division
A simple calculator that can be used anytime, anywhere
Convert English characters into text art made of ASCII characters
Precisely select colors through intuitive and simple operations
Detect and display detailed browser information including User-Agent, browser type, version, rendering engine, OS, and more
Convert images to ICO format, resize icons, and support multiple output formats for website favicons
Resize images to specified dimensions, support multiple formats and quality settings, download resized images directly
Convert Excel files (.xlsx/.xls) to high-quality PNG images with one click. Supports multiple sheets and merged cells
Convert WebM videos to MP4 with fast server-side FFmpeg encoding. Files are deleted immediately after conversion
Enter your height and weight to quickly calculate your BMI index and understand your body mass index
Convert RMB amounts to Chinese characters, supporting both simplified and traditional Chinese
Calculate monthly payment, total interest and total repayment amount, supporting equal principal and interest and equal principal methods
Validate XML sitemap structure and content, check URL validity, and ensure compliance with sitemap protocol standards
Randomly generate English names, emails, phone numbers and address information
Generate random avatars in real-photo, pixel, cartoon, robot and illustration styles. Click to download.
A fun personality test with 31 questions, 15 dimensions, and 26 personality types
Free download TikTok videos without watermark, save photos and music in HD quality
Free download Douyin videos without watermark, high quality save
Parse public Xiaohongshu / RedNote share links to download videos, photo notes, and covers
Download Instagram videos, reels and images from public posts
Save Facebook videos and photos from public posts and watch links
Download Bilibili videos and covers by BV link or b23.tv short link
Download Kuaishou videos and images without watermark in high quality
Download videos and images from public Threads posts
Download HD videos, GIFs and images from X (Twitter) posts
Download Zhihu videos and images without watermark
Download Haokan videos and images without watermark
Download Tieba videos and images without watermark
Download Xigua videos and images without watermark