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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.
Chinese Idioms Full List Online
The online chinese idiom full list supports idiom query, idiom explanation and idiom example viewing. You can fuzzy query idioms according to the words or phonetic abbreviations. This tool contains tens of thousands of chinese idioms and provides online query function of idiom dictionary.
Whois Lookup
Domain name whois information query, query the Registrar of the domain name, registration time, DNS information and contact information of the domain name holder.
Digital Binary Converter
Support float and binary / hexadecimal conversion, double and binary / hexadecimal conversion, short and binary / hexadecimal conversion, int and binary / hexadecimal conversion, long and binary / hexadecimal conversion. The byte order needs to be selected during conversion, and the default is large end order. Big end mode means that the high byte of data is saved in the low address of memory. Small end mode means that the high byte of data is saved in the high address of memory.
QR Code Generator
QR code generator online, which supports online generation of QR code of text and URL. Support embedding custom logo or embedding custom text below QR code.
Chinese Surnames with Pinyin
The full text of online hundred surnames, the online hundred surnames ranking table, and the full text of online hundred surnames with pinyin.
China Permanent Residence ID Card Number Query Online
Online permanent residence card number query tool, which can query the province, nationality, date of birth and other information contained in the new version of 18 foreigners' permanent residence ID card number. Batch query is supported.
Make Gauge Chart Online
Make gauge charts online for free. Make gauge chart online, support filling in data online or uploading excel files, and support exporting the generated gauge chart to JPG, PNG and PDF files.
KMAC Calculate and Verify Online
Online KMAC (KECCAK Message Authentication Code) calculation and verification tool, supporting online calculation and verification of KMAC. Support input data and keys, select KMAC-128 or KMAC-256 algorithm, set output bit length and other parameters.
Latest Online
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.
JSON Diff Online
Online JSON comparison tool, input two JSON data and compare their differences. The comparison result will indicate missing attributes, different value types, different values, etc.
Convert Chinese Uppercase Numbers to Arabic Numerals Online
Online tool for converting Chinese uppercase numbers to Arabic numerals, supporting the conversion of Chinese numerals (一, 二, 三, etc.) and Chinese uppercase numbers (壹, 贰, 叁, etc.) to Arabic numerals (123). The conversion results can be copied and downloaded.
WGS84 and CGCS2000 Coordinate Converter Online
Online WGS84 and CGCS2000 coordinates high-precision conversion tool, supports different versions of WGS84 coordinates and CGCS2000 coordinates conversion each other. The input coordinates support XYZ spatial cartesian coordinates and LBH geodetic coordinates. The conversion supports epoch calculation and ITRF framework coordinate conversion.
Coordinate Transformation Parameter Solving Online
Online coordinate transformation parameter solving tool, input a set of known point coordinates, and solve the parameters used for three parameter, four parameter, and seven parameter coordinate transformations. The coordinate transformation method supports the Helmert and Bursa-Wolf models, and the input coordinates support 2D and 3D coordinates, as well as spatial Cartesian and geodetic coordinates.
Local Font Preview Online
Online local font preview tool, open local font files or read locally installed fonts to view the display effect of fonts. Support opening WOFF2, Fonts in WOFF, TTF, and OTF formats.
ITRF Coordinate Transformation Tool Online
Online ITRF Coordinate Transformation Tool: A coordinate transformation utility utilizing ITRF transformation parameters for conversions between ITRF reference frames, supporting epoch conversion via velocity fields. Compatible with over a dozen ITRF frameworks including ITRF2020, ITRF2014, ITRF97, and others. Accepts input coordinates in both geodetic (LBH: Latitude, Longitude, Height) and geocentric Earth-fixed (XYZ) formats.
