Popular Recommendation
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.
Unit Converter Online
Unit converter online supports the conversion of multiple units such as length, weight, area, volume data.
Morse Code Convert Online
Morse Code Convert Online supports encoding text (including Chinese) into Morse code and decoding Morse code into ordinary text. Text supports all unicdoe characters.
Image Stitching Online
Online image stitching tool that supports opening multiple local images and stitching them into one image. The concatenated image results support downloading to the local location. Local image formats support jpg, jpeg, png, webp, and more.
Make Basic Sankey Chart Online
Make sankey charts online for free. Make sankey chart online, support filling in data online or uploading excel files, and support exporting the generated sankey chart to JPG, PNG and PDF files.
China Portfolio Mortgage Calculator
Online portfolio mortgage calculator to calculate the monthly repayment amount and interest expenditure of provident fund loan and commercial loan portfolio mortgage.
UUID Generator Online
UUID online generator, guid online generator tool (GUID is a term for UUID by Microsoft). Support the generation of UUIDs for version 1 and version 4 algorithms. Version4 UUID is generally used.
Make Basic Tree Chart Online
Make tree charts online for free. Make tree chart online, support filling in data online or uploading excel files, and support exporting the generated tree chart to JPG, PNG and PDF files.
ASCII Code Table
ASCII code table online, query ASCII code 0-255 corresponding characters, including control characters, printable characters and extended characters.
ZIP Compression Online
Online ZIP compression tool, open files or folders, and generate ZIP compressed files online. This tool supports multiple files selection and setting compression ratio and other parameters.
Compress PDF Online
Online PDF compression tool that compresses the size of PDF files, supports setting different compression levels, and supports downloading compressed PDF files locally.
Latest Online
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.
RSA Signature and Verification Online
Online RSA signature and verification tool, supporting signature generation and verification functions for RSA, DSA, ECDSA and other algorithms.
Modify PDF Metadata Online
Online PDF metadata modification tool, supporting the modification of metadata information such as title, author, topic, time, etc. of PDF files. The modified PDF files can be downloaded locally.
PDF Signature Online
Online PDF signing tool, add handwritten signatures to PDF files online, and the signed PDF files can be downloaded locally.
Password Strength Detection Online
Online password strength testing tool, which checks the strength of the input password online. When the input password strength is weak, it provides suggestions to increase the password strength.
Matrix Calculator
Online matrix calculator, calculating addition, subtraction, multiplication, division, determinant, inverse matrix, transpose matrix, etc. The calculated matrix supports both real and complex matrices.
Chinese Pinyin First Letter Online
Online Chinese Pinyin Initial Abbreviation Tool, obtains the first letter of Chinese Pinyin in input text, supports parameter settings such as polyphonic characters, half width, and full width. The generated pinyin initials support downloading to the local device.
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.
Online Foreigner Permanent Residence ID Card Number Generator
The online tool for generating permanent residence ID card numbers in China for foreigners can generate 18 new versions of permanent residence ID card numbers online. It supports user-defined countries, accepting provinces, birth dates and other parameters. The generated results can be downloaded locally.
Full and Half Width Characters Converter Online
Online full width and half width conversion tool, which converts punctuation, English letters, numbers, and other characters in input text to each other in full width and half width. The converted results support copying and downloading.
Greatest Common Divisor and Least Common Multiple Calculator
Online greatest common divisor - least common multiple calculator, input a set of integers of any size, calculate their least common multiple and greatest common divisor.
GIF Merge Online
Online GIF merging tool, open multiple GIF images and merge them into one GIF image. Merge supports sequential and simultaneous play of GIF, and supports setting GIF image size and other parameters.
