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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.
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.
Loan Prepayment Calculator
Online prepayment calculator, which calculates the saved interest or reduced loan time for loans with equal principal or interest after prepayment, as well as detailed comparison information before and after prepayment.
Fuel Consumption Calculator Online
The online fuel consumption calculator provides functions such as fuel consumption calculation per hundred kilometers, fuel consumption calculation per unit mileage, and cost calculation per unit mileage.
Personal Seal Generator Online
Online personal seal generator, supporting the online generation of personal seals with two, three, and four character names. It supports setting different fonts and multiple generation parameters, and the generated personal seals can be downloaded locally.
Image Quality Enhancement Online
The online image quality enhancement tool, based on the image quality analysis technology and AI reconstruction technology, enhances the low quality blurred images in a one-stop way, greatly improves the portrait quality and overall picture definition, intelligently and quickly denoises the blurred images, optimizes the image texture details, makes the images more natural and clear, and improves the user experience.
Make Basic Sunburst Chart Online
Make sunburst charts online for free. Make sunburst chart online, support filling in data online or uploading excel files, and support exporting the generated sunburst chart to JPG, PNG and PDF files.
JSON Schema Validate Online
Online JSON Schema verification tool, input JSON data and JSON Schema format, and verify whether JSON data conforms to the format defined by Schema.
Font Format Converter Online
Online font format conversion tool, supporting mutual conversion of font eot, otf, svg, ttf, woff, woff2 formats, generating font sample demos, and downloading the converted font files locally.
Java 11 Documentation
Java 11 document online provides java 11 (Java SDK 11) document online viewing and java 11 API online viewing.
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.
