Random Number Generator Online

The online random number generator supports the generation of random integer values and random floating-point values. When unique is specified, all generated random numbers are not repeated.

Stopwatch Online

Online stopwatch timer supports online stopwatch timing, millisecond time, pause, mark and download functions.

Countdown Timer Online

Countdown timer online supports online countdown. After the countdown, you can set the sound of playing alarm.

Unit Converter Online

Unit converter online supports the conversion of multiple units such as length, weight, area, volume data.

True Code/One's Complement/Two's Complement Calculator Online

Online true code, One's Complement code, and Two's Complement calculator, supporting the calculation of 8 bit, 16 bit, 32 bit, 64 bit, and any bits of integer number's true code, One's Complement code, and Two's Complement.

Javascript Obfuscator Online

JavaScript obfuscation and encryption tool online supports online obfuscation and encryption of JavaScript code. Obfuscation supports low obfuscation high performance, medium obfuscation optimal performance, high obfuscation low performance modes. You can also control the detailed process of obfuscation by customizing parameters.

Random Phone Number Generator Online

Online random phone number generator, using template syntax to randomly generate phone numbers. This tool supports generating mobile phone numbers in any format.

Chinese Relationship Calculator

Calculate online how to call Chinese relatives and how relatives call me. It also supports calculating the corresponding person relationship through relative.

Emoji Encyclopedia Online

Online Emoji Encyclopedia, which lists emojis by category and supports one click copying.

DNS Lookup Online

The DNS record query tool provides DNS A-type, CNAME type, MX type and TXT type record query functions. Domain name system (English: domain name system, abbreviation: DNS) is a service of the Internet. As a distributed database that maps domain names and IP addresses to each other, it can make it easier for people to access the Internet. DNS uses TCP and UDP ports 53. At present, the length limit for each level of domain name is 63 characters, and the total length of domain name cannot exceed 253 characters.

Random Hex Generator Online

The online random hex string generation tool supports the generation of hex strings of any length, which can be downloaded as hex text files and binary bin files.

SCrypt Derive Key and Verify Online

Online SCrypt derived key and verification tool, using scrypt Password Based Key Derivation Function to derive keys based on password and random salt, supporting custom block size, CPU/memory cost, parallelization, derived key length and other parameters. Support online verification of SCrypt derived keys.

Character Set Encoding Information Query Online

Online character set encoding information query tool, which queries the encoding range supported by character set encoding and the Unicode code point range supported. This tool supports nearly a hundred character set encodings. Support querying characters within the character set encoding range or Unicode encoding range.

Random Number with Sum Generator Online

Online sum random number generation tool, supporting the random generation of random numbers within a specified range, with a sum equal to the specified value. Support random generation of integers and decimals, integers support generation of large integers, decimals support precision to 1000 decimal places.

Random Color Generator Online

Online random color generator, supporting the random generation of colors in all formats such as RGB, RGBA, HSL, HSV, CMYK, YUV, hex, etc. The generated colors support preview and download.

Simple Image Editor Online

Online simple image editor tool that supports online cropping, flipping, rotating, resizing, free drawing, adding text, adding icons, adding graphics, setting masks, adding filters and other image editing effects. It supports opening images in JPG, JPEG, PNG, WebP, BMP and other formats. The edited images can be downloaded in JPG, JPEG, PNG, WebP formats.

File Type Detection Online

Online file type detection, supporting the detection of hundreds of binary file formats. Support batch detection of file formats, and the detection results can be downloaded locally.

Chinese Retirement Age Calculator Online

Online retirement age calculator, supporting the calculation of retirement age for male employees, ordinary female employees (formerly 50 year old retired female employees), female employees in management, technology, and cadre positions (formerly 55 year old retired female employees), as well as the number of months of delayed retirement after the reform. This tool displays both flexible early retirement and flexible delayed retirement times.

Add Filters to Batch Images Online

Online add filters to batch image tool, supports batch opening of images in jpe, jpeg, png, webp formats, adding filters such as grayscale, black and white, invert, noise, pixelate, etc. to images. The processed images can be downloaded locally.

File Encoding Detect and Convert Online

Online file encoding detection and conversion tool, which detects the character set encoding of text files online and supports the conversion of character set encoding of text files. Supports various character set encodings such as UTF-8, UTF-16, UTF-32, ASCII, GBK, GB12030, etc.

Card No. and Password Generator Online

Online card number and password generator, supporting batch generation of card numbers and passwords. Support generating card numbers based on various rules such as numbers, time, and random generation, setting password generation rules, and setting the output format of card number password results.

Guess Numbers Online

Online guessing numbers tool that supports generating classic 1A2B guessing numbers and guessing numbers based on larger or lesser prompts.

Image Coordinate Picking Online

Online image coordinate picking tool, which picks up the pixel coordinates of positions on the image online.

Add Background Color to Transparent Background Images Online

Online transparent background image add background color tool, support for png, webp and other transparent background format image add background color, support batch add background color.