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.

Decimal Degrees and Degrees Minutes Seconds Converter Online

The decimal degrees and degrees minutes seconds converter tool permits the user to convert latitude and longitude between decimal degrees and degrees, minutes, and seconds. Conversion supports single conversion and batch conversion.

Make Basic Radar Chart Online

Make radar charts online for free. Make radar chart online, support filling in data online or uploading excel files, and support exporting the generated radar chart to JPG, PNG and PDF files.

HMAC Generator Online

The online HMAC calculation tool supports the hash-based message authentication code calculation based on MD5, SHA1, SHA224, SHA256, SHA384, SHA512, SHA3-256, SHA3-512 and other hash algorithms.

Barcode Sacnner Online

Online barcode scanning tool, supporting batch scanning of barcodes in EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Code 93, ITF and other code systems. The scanning results can be downloaded locally.

Make Basic Scatter Chart Online

Make scatter charts online for free. Make scatter chart online, support filling in data online or uploading excel files, and support exporting the generated scatter chart to JPG, PNG and PDF files.

View Certificates Online

Online certificate viewing tool, open the SSL certificate in PEM or DER format, view the certificate's common name, key algorithm, validity time, certificate fingerprint, alternative name, and other information. This tool also supports viewing information about certificate chains.

ULID Generator Online

Online ULID generator, supports batch generation of ULIDs, and the generated ULIDs can be downloaded locally.

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.

SM4 Encryption and Decryption Online

The online SM4 encryption and decryption tool provides online SM4 encryption and decryption test. The encryption and decryption supports six modes: CBC, CFB, OFB, CTR, GCM and ECB, and the input and output supports three formats: hex, string and Base64.

NTRIP Source-Table Parser and Generator Online

Online NTRIP Source Table parsing and generation tool, online parsing of ntrip source table, online generation of ntrip source table. Support STR, CAS, NET type source table.

Base Station Coordinate Calculation Online

Online base station coordinate calculation tool: input the geocentric-fixed coordinate XYZ of the rover station or the geodetic coordinate LBH of the rover station, input the ENU coordinate of the rover station relative to the base station, and calculate the XYZ or LBH coordinate of the base station. This tool supports batch calculation and multiple ellipsoids.

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.